THE ULTIMATE GREEN GLUE CEILINGThe ultimate soundproofed ceiling is shown in the image below. You can use a long straightedge or stretch a dry line over the strips to check that the furring is straight. 1(1) and R804. between joists. 7 and you are planning to light from an eight foot ceiling. Bracing details for both walls and joists systems when sheathing material. Wall intersections 3. Install the border with construction or panel adhesive and drywall screws that penetrate joists at least 1 in. On the walls running parallel to the joists 2x4’s can be installed between. the right width - you need the correct width for the spacing of ceiling joists, roof trusses or rafters, if you’re going to insulate in between the right thickness (particularly f or skillion roofs) - you need to keep at least a 25mm gap between the insulation and the roof underlay. 203” on center 0. Hot dip galvanized steel, Q195, Q235 2. Ceilings with 24-inch on center framing traditionally require the use of 5/8-inch thick type X board, or ceiling board to reduce sag. Drive 2 inch drywall screws to fasten the strips to the joist. For better performance, the designer may wish to add a joist or blocking panels below the non-bearing wall. Regular 1/2-in. You'll want to secure them to wall studs and or ceiling joists, but if that spacing is not what you want, then heavy drywall anchors will work. The first approach to achieving a strong, durable struc-. Ceiling drywall should always be installed perpendicular to the joists, even when they are 16 inches on-center. So have to do some leveling of the exisiting joist which should be easy and only counted 3 hand holes that will have to go in for shut off valves. Causes could be: 1. Drywall expansion joints are made of plastic (vinyl), or zinc strips with a "Vee" groove in the center and flanges that are taped to the otherwise abutting edges of drywall ceiling or wall panels. perimeter of the ceiling; square metres of the ceiling; number of row's of main cross bars in your ceiling. For joist spacing 16 in. But the seams between the sheets, whether they are drywall or OSB, needs to be taped on the common walls and ceiling with common attic like Jim L pointed out. Renting a laser level ($90/day) helps keep your ceiling straight and true. Ceiling joists can run in any direction, and it is often very difficult to tell which way they are running without being able to seem them. Sometimes furring down part of or the entire ceiling is the best way to bury surface-mounted pipes or wires. It's comprised of a grid that supports 2 x 4- or 2 x 2-ft. 5- and 23-inch widths, when I-Joist spacing is 16-, 19. Ideally, these would be screwed to blocking between the joists. Cut down the boards if necessary. 3/8" ceiling (2, 3) perpendicular (3) 16 — sidewall parallel or perpendicular 16 1/2" ceiling (4. 1 Use a drywall T-square to draw lines onto drywall sheet 16 in. I suspect there isn t a person in the world who hasn t had trouble trying to find a. I think that OSB would be more of a fire resistive material than drywall, even if it was 5/8 fire stop. 1 to ceiling joists. Blown in insulation is relatively lightweight, even R-60 will add only 1. bridging for floor and ceiling joists. If ceiling moves up and down at all, have drywall installer locate existing screws/nails with a metal finder, then split-space with additional ones if existing spacing is beyond code - generally 6 to max 8 inches on edges depending if 3/8 or 1/2" drywall, not more than 12 inch in field area - preferably 8 inch. DRYWALL/JOIST INSTALLATION For the drywall/joist installation, do the steps. APA Performance Rated I-joists (PRIs) are manufactured in accordance with PRI-400, Performance Standard for APA EWS I-joists, Form X720. In fact, when you're hanging the ceiling, keep in mind that 1/2 in. The general concept of drywall hanging is very simple. If you don’t have obstructions hanging below your joists, you easily can finish your basement ceiling using drywall or paneling, such as 4-by-8-foot sheets of decorative grooved wall. Then I cut those strips into 4-foot sections with my miter saw. HouseBuilder Ruby PlugIn Garage Tutorial corrected for proper Spacing. In rooms that have a drywall ceiling, the ceiling should always be the first thing that is hung. Interesting question really. CEILINGS: fiSTEELfiSTUD 71 Mechanical joints are required where the maximum spans of the ceiling exceeds those allowable for friction joints, or where a more positive connection is required (see Figure 2). This is especially true in buildings where the joists are spaced farther apart. If he chose to nail the top the ceiling joist, then the dept of closet would be too shallow, so he moved the top plate about 3 in out. This is how far apart they will be. "Railroading" drywall refers to installing gypsum panels parallel to the studs or floor joists. Use either nails or screws to attach the drywall to the joists. One sheet of drywall can weigh over 100 pounds depending on the size and type used. Since the steel stud or floor joist is one part of a wall or floor/ceiling system, actual wall and floor assemblies are tested for their fire resistance while maintaining their structural integrity by various approved testing agencies throughout. Strapping can even out older houses with crooked, twisted and uneven joists. Ceiling Option 1: For our Dining Room Ceiling and the Ceiling in the new basement Bathroom we used a thinner beadboard product. A large beam in the ceiling of a room carrying joists is a summer beam. Many drywall contractors would prefer using a thinner lightweight material. Screw the Drywall Into the Joists. The ceiling joist are 2 x 4, can I do the blocking between the joists with 2x4, so I can have something to nail the top plate up. Whats people lookup in this blog: Ceiling Joist Span For Drywall; Ceiling Joist Ing For Drywall. Ceiling Joists and Rafters. It would indicate where a ceiling joist was behind drywall, and when you drove a nail, it wasn't there. Save time, win more jobs, and get paid faster with quick estimates, professional invoices, and payment tracking, all in the Joist mobile and web app. Some builders like to space fasteners tighter than that, so they go down to 12 inches. When I drill in those places, I get through the drywall, then a slight resistance, then the whole 3" bit goes right through and all I get is insulation and drywall dust. However, most fire-tested floor and roof assemblies utilizing solid sawn structural members require a minimum 2×10 depth. c; Incandescent type, W8 x 35 beam 6-1/2 diam. My understanding is that one of the problems with roof trusses is that cracks almost always develop in the drywall where interior walls meet the ceiling, because the roof truss is floating over the interiior wall, whereas in a traditional built roof the ceiling joists sit on the wall. Tip: Use blocking where the top track is parallel to floor joists (as shown below). Joist Spacing Joist spacing is dependant upon the thickness and angle of deck boards. C Existing floor joist @ 16” oc. HouseBuilder Ruby PlugIn Garage Tutorial corrected for proper Spacing. Approved hangers shall be used for the header joist to trimmer joist connections when the header joist span exceeds 6 feet (1829 mm). Rondo Steel Studs can be used as a ceiling structure, where it’s difficult to install a suspended ceiling system. along the perimeter will be covered by drywall on the walls. It would indicate where a ceiling joist was behind drywall, and when you drove a nail, the joist wasn’t there. The link below provides additional information and span tables for TJI® Joists in ceiling applications. lag screws to attach the cross-cleats through the ceiling into the joists. Drywall Metal Sections Combining maximum performance with minimum fuss, Knauf metal solutions are easy to install in any interior. Ans 2 - MOST mobile homes made since 1975 have 16" spacing of floor joists. This exposed the center joist to allow for accurate placement of the template. nStagger butt end (cut end) joints so joint does not extend across the ceiling. A ceiling joist may be installed flush with. F New 2x blocking @ fan G New non-rated Fan H 5/8” type X drywall. Start studying Carpentry. Going to be pulling out the old fiberglass batts up there since it's mostly destroyed and covered in mouse droppings. As Charlie pointed out, your local building code may have an opinion about this and therefore it rules over anything we can offer here. Fixing to Steel Joists Fasten the ceiling batten at every support using a 10x16mm hex-head self-drilling screw (minimum fixing size) through each flange as shown in figure 3. nStagger butt end (cut end) joints so joint does not extend across the ceiling. Header may be 2X4 laid flat with no jack studs for openings up to 8’ wide if distance from header to plate above is not more than 24”. Install with two, 6d common nails per end. In the example above, the joist spacing is 16" on center. My walls are being framed with 2x4 studs on 24" centers. To remember it, think of the sheet of drywall as a train car and the studs as the railroad tracks. com makes it easy to get the grade you want!. Tail joists over 12 feet. Locations of tempered glazing. The joist is the beam that connects walls and the ceiling to the floor. SPAN TABLES FOR JOISTS AND RAFTERS 3 AMERICAN FOREST & PAPER ASSOCIATION Table 9. Don't force the blocks into place. In rooms with an existing ceiling, you will need to use the cans that attach directly to your drywall. Be careful not to trap a wire between the two bys and the joist. That's enough to bridge the gaps between wall studs and ceiling joists built to the standard spacing of 16 inches on center. Determine the joist direction that applies to the installation. Measure and cut the wooden boards to size. On a ceiling the thickness is more important because it can sag between the ceiling joists especially if it's insulated above and the spacing of ceiling joists is also important in the decision. IB MAX- CORE® I-JOISTS span longer distances (up to 52 ft. along the perimeter will be covered by drywall on the walls. Meaning that the weight of the roof wants to push the walls down and out. Ceiling joists are 2x10 of that makes a difference for weight issues. There is block on top of the joists connecting the two and there also appears to be horizontal blocking between those 2 joists as well. Regular half inch drywall ceilings can be hung perpendicular if joists are spaced 24 inches or less apart (*always refer to local codes). Then with a couple of drywall screws, mount the temporary holders to the joists. How many drywall screws or nails you'll need per sheet depend on the size of the sheet and the spacing of the studs. Stone wool batts are designed to friction fit to normal I-joist spacing. When using the tables to size rafters, there are two points to keep in mind. Heavy insulation will not be installed later, since that could cause the drywall to sag, or even fail. Joist extensions offer special powerful features. Frame members 24" apart are OK for 1/2" and 5/8" wall panels and for 5/8" ceilings in which the long side is placed perpendicular to the joists. This will give you 3" extra to tie the wire around the fastener and 3" inches below the ceiling height for tying to the main runner. C Existing floor joist @ 16” oc. When installing drywall on a ceiling or wall, maintain up to a 1/4″ gap along the perimeter. You can unscrew the cement board and throw it away; then double the number of ceiling joists and screw drywall to it; then mud it; and then paint it with kitchen or bath paint. Truss uplift occurs in homes when the bottom of the trusses separate from interior partition walls during winter months. However because it is so thin it will tend to sag, so we had to be careful about not making the spacing too large. 30 T257bP10 248 x 71 8. Locating Studs and Joists The best place to start is to get an understanding of your wall stud or ceiling joist spacing. It's only when the drywall is added that it comes back. If a ceiling is bowed, sagging or dropped down, then the reason may relate to a structural issues. The trapezoidal punch-outs enable several trades, such as plumbing, HVAC, technology, and electrical to take advantage of access route for various services while sturdy, long. Second, the maximum spacing for ceiling joists that will be covered with drywall is 24 inches. How to locate ceiling joists the easy way you how to find studs in plaster ceiling material toolboxgadgets how to use magnets and knocking locate wall studs ceiling super easy wall stud ceiling joist finding trick you. It covers #2 common lumber species and sizes at 20 pounds per square foot load. You'll want to be sure to stagger the sections, so that the seams don't align, which could promote crack/seam lines later. The goal is to cover all metal or wood studs with sheets of gypsum panels. This is how far apart they will be. Open Joist is a revolutionary open web, all wood, floor truss engineered with superior strength and load carrying capabilities. The new ceiling joists (max length of 102") are secured (screwed) to the header 2x4 of the perimeter wall using metal joist hangers. ALLOWABLE SPANS FOR JOISTS AND RAFTERS 1, 7 Lumber Grade FLOOR JOISTS CEILING JOISTS 5 RAFTER-CEILING JOIST COMBINATION RAFTER-CEILING JOIST COMBINATION RAFTERS 6 DOUGLAS FIR-LARCH NO. spacing on ceiling framing, but because of heavy sagging insulation, wet ceiling textures, or higher humidity, either a 1/2-in. When walls are over 50 feet apart, the ceiling should be examined for bracing requirements • IBC categories D, E and F single layer drywall ceilings are exempt from lateral force bracing requirements, regardless of room size. Place ceiling track over screw head 3. URB FR-X1 ILT edge DXLTZ, DXLTZA 2 x 2—24%; 10 bar joists 24 o. the header joist span exceeds 4 feet (1219 mm), the trimmer joists and the header joist shall be doubled and. Install the border with construction or panel adhesive and drywall screws that penetrate joists at least 1 in. This will strengthen the drywall and produce a seamless wall later. Floor Joists – Living Quarters Span Tables Hem-Fir No. On a ceiling the thickness is more important because it can sag between the ceiling joists especially if it's insulated above and the spacing of ceiling joists is also important in the decision. At the end of the ceiling there will be something other than 16 inches left. -- in ceiling. 6 of the 2012 IBC provides a method for adding the time assigned to the individual components of an assembly. Locate the new wall. Use panel lifter or a temporary T-brace to support weight. Ceiling Joists and Rafters. Approved hangers shall be used for the header joist to trimmer joist connections when the header joist span exceeds 6 feet (1829 mm). The size of the ceiling joist also is accounted for in joist spacing. My Original Stud Finding Method: https. Ceiling joists and rafters shall be nailed to each other in accordance with Tables R602. Each is cut to 32" x 24" so it will bridge most any joist spacing. Measure and cut the wooden boards to size. If the existing ceiling is plaster, if it's cracked or sagging or if it has many thick layers of wallpaper, furring strips will secure the existing ceiling and give you a base for the drywall. The ceiling joist are 2 x 4, can I do the blocking between the joists with 2x4, so I can have something to nail the top plate up. Mid-span joist spacing (in) o. Span tables are included in this booklet for conventional framing methods based on uniform loads. All rafter spans in the tables use L/180 de fl ection. 3 pounds per square foot (psf ) of insulation. For Joist Spacing up to 24″ on center. Some builders like to space fasteners tighter than that, so they go down to 12 inches. lightweight product can be used throughout the job. Don't force the blocks into place. I just tore out the drop ceiling in my basement and am framing for a drywall ceiling. 1/4" drywalls main purpose is for forming curved surfaces. So have to do some leveling of the exisiting joist which should be easy and only counted 3 hand holes that will have to go in for shut off valves. (4) S HEETROCK Brand Gypsum Panels— Water Resistant are not recommended for ceiling where framing is greater than 12 9o. Increase the joist spacing as far as structural requirements allow. It also has to be supported by something other than widely spaced trusses. joist width at base: 5" [127mm] metal furring for finish attachment spacing: 12" [305mm] o/c joist width: 4. 6 and AF&PA's DCA 4 can be used to estimate fire endurance times for 2x8 floor/ceiling assemblies without testing. Staple Owens Corning™ Raft-R-Mate ® rafter vents to roof deck in every ceiling joist cavity the entire length of the joist cavity. Installing Paneling and Drywall. Rafter spans can be extended slightly beyond what the rafter tables suggest, when there is a cantelever extending beyond the supporting wall. The Joist Tape can be applied by hand for medium to small jobs. HouseBuilder Ruby PlugIn Garage Tutorial corrected for proper Spacing. Now go down into the room below and locate the hole in the ceiling. For other grades and species and for other loading conditions, refer to the AWC STJR. As well, the floor joists are often not perfectly on the same plane, with one or more of the floor joists being slightly lower or higher than the others. Drywall expansion joints are made of plastic (vinyl), or zinc strips with a "Vee" groove in the center and flanges that are taped to the otherwise abutting edges of drywall ceiling or wall panels. 5 mm ceilings(3) perpendicular(4) 400 16 (3/8 ) parallel(4) 400 16 12. Tail joists over 12 feet. Can be used in floor/ceiling, as well as roof/ceiling assemblies (attic). For better performance, the designer may wish to add a joist or blocking panels below the non-bearing wall. Both the wall studs and the ceiling trusses have 24" OC spacing. Locations of tempered glazing. Drywall suspended grid systems consist of a heavy duty main runner, 4' tees and an L-shaped wall angle. Wood Frame Walls And Ceilings adHeSIve applICaTIoN oF FaCe layer use one of the following adhesives: A. With suspended systems, you can lose about three to five inches. They are sheathed with either spaced solid wood. Plywood is from 1/2" to 5/8" thick; better quality plywood can be thinner. Measure and cut the wooden boards to size. When drywall is applied to ceilings, ½- to 5/8- inch sheets are recommended to reduce any potential sagging that may occur over time. Every screw must hit a ceiling joist. 3/8" ceiling (2, 3) perpendicular (3) 16 — sidewall parallel or perpendicular 16 1/2" ceiling (4. Ceiling joists (most often 2×6 every two feet) will add nearly a pound per square foot. Always install ceiling first, then install walls, allowing a space of at least 1/2" off of the floor. on center; these lines correspond to the 1x3 strapping screwed to ceiling joists. ), making joist spacing wider, so fewer pieces need to be installed. Use screws so you are certain you've connected with the. no need to add noggins as 12. It is firmly attached to the trusses and that is what you see holding the. To change it, click on another option. the drywall is 55 lb a sheet 4'x 8'x 5/8". ) should be provided between the ceiling perimeter and adjacent walls and filled with acoustical sealant. With suspended systems, you can lose about three to five inches. 5 is now often used. Ceiling joists are sized like floor joists except that deflection limits vary depending on whether the joists will be used for attic storage or will have a plaster or drywall finish. I will have 2x4 or 2x6 joists that will be supported on the interior walls themselves and on ledger attached to the exterior ICF walls and that will create the ceiling structure supporting the ceiling drywall and the insulation. The ceiling joists are accurately spaced. A similar-sized square was cut out of the center of the cardboard template. Going to be pulling out the old fiberglass batts up there since it's mostly destroyed and covered in mouse droppings. Lay each board flat against the ceiling and screw into place. 1 Determine if your VersaRac will be installed parallel or perpendicular to the direction of your ceiling joists. If they did not exist, there would be no way to maintain the structural integrity of the home. Frame members 24" apart are OK for 1/2" and 5/8" wall panels and for 5/8" ceilings in which the long side is placed perpendicular to the joists. The ceiling joists are 2 3/4" x 9 1/2" and run the width of the room at 15' with 13 3/4" spacing in between. The span of the joists depends on spacing and whether the attic above the joists will be used for storage. If you have a new home, the basement usually is deep enough and ceiling height usually isn't a concern, so you have your choice. It covers #2 common lumber species and sizes at 20 pounds per square foot load. Measure and cut the wooden boards to size. Ceiling strapping should be installed every 16 inches on center, perpendicular to the joists above. Limitations 1 Exposure to excessive or continuous moisture and extreme temperatures should be avoided. Screw the Drywall Into the Joists. Run the furring the entire perimeter of the ceiling attaching it to each joist. Strongbacks are not given any credit when evaluating maximum span. Joist are 2x4s running parallel, spaced 16” apart, just above the ceiling drywall. the header joist span exceeds 4 feet (1219 mm), the trimmer joists and the header joist shall be doubled and. In most homes, ceiling joists are set either 40 or 60 cm (16 or 24 inches) apart. Then get a drywall lift [rent from HD/Taylor Rental] and install 5/8 inch fire rated drywall, joint compound/tape the seams, screws, sand, paint. Also, in most typical homes with 16" ceiling joist spacing, green board should not be used on ceilings or other horizontal applications, as it is more prone to sagging than standard drywall. We use 2″ x 4″‘s we call “cross-member-framing” to complete the bottom of the soffit framing. It can be likened somewhat to sheathing the exterior of a building using plywood or other exterior sheathing panel. Mechanical joint Type 1 is suitable for single span ceilings up to 3000mm or two or three span ceilings up to 4000mm span. Use screws so you are certain you've connected with the. Figure 2- Roof Truss in normal position. Joists of lesser depths, such as 2x8, are generally not permitted to be substituted unless the assembly is retested. All joints and penetrations to be sealed with Fire-Caulk. See Figure 6. For ceiling joists, the minimum dimension per the IBC is a 2 x 12 inch, with spacing dependent on the load. ULC Fire Tested to maintain fire ratings of two hours or less in all UL L500, D500, G500, D200, G200, J200 and L200 series fire-rated floor/ceiling assemblies. The timbers are going to shrink about a 1/16" on each side over time most likely. In fact, when you're hanging the ceiling, keep in mind that 1/2 in. Maximum spacing between MidWall connectors is 36" o. 4 (1) CEILING JOIST SPANS FOR COMMON LUMBER SPECIES (Uninhabitable attics without storage, live load = 10 psf, L/Δ = 240) SPACING (inches) SPECIES AND GRADE. The bracket can. Once you have identified the stud or joist on-center spacing NEW BARNWOOD™ boards can be cut into increments of the on-. Fixing to Steel Joists Fasten the ceiling batten at every support using a 10x16mm hex-head self-drilling screw (minimum fixing size) through each flange as shown in figure 3. Re: 24 Inch Ceiling Joists unless codes have changed recently, 1/2 on 24" meets code. Locate the new wall. Secondly, the ceiling joists and end connections will require further consideration if thrust loads from a conventionally framed (rafter) roof system are present. However, with approval of the building official, the empirical methods in IBC 721. The permit documents shall include roof framing plans showing spacing. Ceiling joists are sized like floor joists. Mini joist hangers are used a lot for studs and smaller timbers including timber noggins in between floor joists. This creates a solid base for the perpendicular 2x4s that attach to drywall instead of solid wood. The goal is to cover all metal or wood studs with sheets of gypsum panels. ULC Fire Tested to maintain fire ratings of two hours or less in all UL L500, D500, G500, D200, G200, J200 and L200 series fire-rated floor/ceiling assemblies. Cut down the boards if necessary. If this is the case with your structure, use the Floor Joist Table to determine maximum joist length/load. Chapter 6, Roof-Ceiling Systems 123 One additional consideration when using nominal 1x ridge boards is that ceiling joists or rafter ties are needed at the top plate of the supporting walls to prevent the walls from spreading outward. CEILINGS: fiSTEELfiSTUD 71 Mechanical joints are required where the maximum spans of the ceiling exceeds those allowable for friction joints, or where a more positive connection is required (see Figure 2). 5 x 1200 x 2700mm shows a double layer of 12. Figure 36-1: Ceiling Joist Spacing Pay attention to truss faces becoming each truss pair's outsides. 5 is now often used. The joists may not be perfectly spaced and you only have a 1-1/2 inch target for attaching two edges of the drywall. If the garage ceiling is finished with drywall, use a stud finder and locate the ceiling joists that are in the area of the installation. Sounds like you are hanging new drywall over the old drywall. With suspended systems, you can lose about three to five inches. The ceiling joists or rafter ties act as a brace to resist the outward thrust of the rafters at. The main purpose of ceiling joists is to keep the walls in. The recommended detail for mid-span blocking -PB1- detail can be found in our literature TJ - 4000 on page 10. £20 of battens will allow me to use standard board sizes without needing to try and find the joists and cutting boards to suit. The ceiling joists should be spaced at 300/400mm centres. The current drywall cost is somewhere around $2 per square foot for labor and materials. along channels, and not to fasten screws through the channel into wood joists. centers; supports fans 70 lbs. 2 Mark onto the drywall the location of any lights or vents in the ceiling. First install batts at outer edge of attic, ensuring the top of your exterior walls are covered, then work towards the middle of the attic. Spacing your screws when attaching drywall to the ceiling is a lot like attaching drywall to a wall stud. For the ceiling drywall, 7-8 inches is more appropriate where it meets walls. i happen to know that they hung the drywall the same direction as the joists !. Exhibits relatively low pull-out resistance. ) And with it being built in 96, I’d imagine that they should be about 16″ apart. on center, toward either side wall. Rated for direct contact with insulation and combustive materials, Step 1 Dezigns housings are easy and quick to install. Joist are 2x4s running parallel, spaced 16” apart, just above the ceiling drywall. If ceiling moves up and down at all, have drywall installer locate existing screws/nails with a metal finder, then split-space with additional ones if existing spacing is beyond code - generally 6 to max 8 inches on edges depending if 3/8 or 1/2" drywall, not more than 12 inch in field area - preferably 8 inch. You don’t even need nails…just use your hammer and tap the mounting brackets into the joist wood…done! Your light is now mounted and ready to be wired. suspended from floor joists or deck using the specified hanger wire. Make note of unusual framing so you'll know where to place screws after it's covered with drywall. Ceiling strapping should be installed every 16 inches on center, perpendicular to the joists above. A joist is one of the beams that supports a ceiling. Note: A 16 ft. 375 inches (0. Ceiling joists are distinguished from floor joists only when there is no floor (except an attic floor) above the joists. Then lag-screw the ceiling cleat to the cross-cleats. Run a string, get a little line level that will hang on the string and fasten the 1 x 4 strapping to your joists and shim to make it all level. Can I use 1/2" gyprock? I understood that with the stronger drywall sheets now available we can use 1/2" on the ceiling. The shed ceiling you desire will determine the amount of work and effort required to make the shed your little oasis. How to Drywall a Ceiling. Some of the joists are 16 feet long, and I've been thinking it might need to go down to 16 inches on center. Door jams 4. This is easy to work with and inexpensive. 6" plywood 1/2" of less. If he chose to nail the top the ceiling joist, then the dept of closet would be too shallow, so he moved the top plate about 3 in out. 5/8 thick drywall comes in regular which is cheaper and anti-sag or as it's sometimes called, hi-abuse board, which is a little more expensive. Nailing ceiling joists to roof rafters also provides bending and twisting movement from occuring to the joists. 5 Timber joist Ceilings to timber joist floors are an established form of ceiling construction, which is widely used in both new housing and refurbishment. 1 4" [108mm] les Ø4 3 4] concrete to be 6" slump, max. On ceilings, you'll need a minimum of one screw every 12 inches regardless of joist spacing. ALLOWABLE SPANS FOR JOISTS AND RAFTERS 1, 7 Lumber Grade FLOOR JOISTS CEILING JOISTS 5 RAFTER-CEILING JOIST COMBINATION RAFTER-CEILING JOIST COMBINATION RAFTERS 6 DOUGLAS FIR-LARCH NO. How To Install Ceiling Drywall Using A Panel Lift - Duration: 6:11. Maximum Frame Spacing—Drywall Construction Direct Application Panel thickness(1) Location Application method(2) Max. ceiling board or 5/8-in. of sufficient cross section to support the floor joists framing into the header. New home construction. That's because without the drywall ceiling and walls the sound from above just drops off the bottom of the joist into thin air where it can't travel. I know that for the ceiling, I'll need to use 5/8" thick drywall, due to Stack Exchange Network. Place ceiling track over screw head 3. Screw the Drywall Into the Joists. It's only when the drywall is added that it comes back. This board is an alternative to 5/8″ gypsum board when attached to ceiling joists or trusses spaced 24″ o. Plan the Installation Location. The WhisperClip system decouples drywall from the stud or joist framing and offers additional flex and resilience. TABLE R802. Spacing between panels would depend on designer/builder preference. You can place the strapping at 16OC and use 1/2" drywall. 1/4" drywall would quickly sag, and probably would required 12" OC ceiling joists, and likely wouldn't even meet fire code anyway. Manufactured to meet ASTM C1396, section 5 and 12, and CSA-A82. QUICKBOOKS SYNC. Some of the joists are 16 feet long, and I've been thinking it might need to go down to 16 inches on center. So again not sure anything could be run inside the wall. The amount of tie wire needed is based on number of support anchors, drop of ceiling in inches and additional 4" per individual length. I am going to be putting drywall up on my ceiling soon and I am not sure which is the best orientation\layout for the drywall. Unless local building codes specify a thickness for ceiling drywall, using panels that are one-half inch thick on ceilings with 16-inch joist spacing is standard. In almost all cases, you will be hanging your heavy bag from a ceiling joist located behind whatever your ceiling might be made of. How to locate ceiling joists the easy way you how to find studs in plaster ceiling material toolboxgadgets how to use magnets and knocking locate wall studs ceiling super easy wall stud ceiling joist finding trick you. 60*27, 27*28. Unsupported joist spacing (in) o. You'll want to secure them to wall studs and or ceiling joists, but if that spacing is not what you want, then heavy drywall anchors will work. If the board isn't quite straight, nail part of it, then push the offending end into line. There is block on top of the joists connecting the two and there also appears to be horizontal blocking between those 2 joists as well. Ceiling Option 1: For our Dining Room Ceiling and the Ceiling in the new basement Bathroom we used a thinner beadboard product. Use longer screws if you're dealing with thick plaster or the 2 inch doesn't engage the joist. you are asking whether it is good enough to have supports 24" apart, if I read you right. Length of each channel measures 8. Screw the Drywall Into the Joists. ; exception: when single-layer ceiling panels are applied with long edges parallel to joists and used as a base for spray-applied texture finish, max. This will help to locate the joists when screwing in the panels. 3/8" ceiling (2, 3) perpendicular (3) 16 — sidewall parallel or perpendicular 16 1/2" ceiling (4. Use temporary 1/4″ or thinner shims along the floor and only remove the shims once all the screws are in. Ceiling joists are required construction elements that are necessary in a home. The joist spacing and joist width are entered. That could put more pressure on the ceiling joists and could force them to move over time. -- in ceiling. Regular half inch drywall ceilings can be hung perpendicular if joists are spaced 24 inches or less apart (*always refer to local codes). Use the bradawl to probe the ceiling to ensure you have found the edge of the next joist. Always install ceiling first, then install walls, allowing a space of at least 1/2" off of the floor. Figure 1-66. Strongbacks are not given any credit when evaluating maximum span. Round Ceiling Rated Pan, 2-1/8 in. while the rear surround speakers are in-wall (or in-ceiling) speakers. span rafter with a 4/12 slope and no ceiling attached has an allowable deflection of L. Some of the joists are 16 feet long, and I've been thinking it might need to go down to 16 inches on center. Joist sizes and construction are determined by the load the joist is to carry. 6 and AF&PA's DCA 4 can be used to estimate fire endurance times for 2x8 floor/ceiling assemblies without testing. There are often visual clues. 2 OR BETTER Drywall Below 2 No Finish Below 2 Plaster Below 2 Drywall Below 3 Lightweight Roofing; Plaster Below 2 Lightweight Roofing; Drywall Below 3 Tile Roofing;. Although not as sturdy as cans that attach to the joist,. Spans for joists greater than 20 feet that are parallel to the rafters require a 12-inch joist spacing when using 2-inch by 10-inch #2 Douglas and hemlock fir or southern pine, or 16-inch spacing when using 2-inch by 10-inch #2 Douglas fir or southern pine. ceiling assembly and a portion of the mass of the walls in the story immediately below the roof. drywall has always been approved for use on 24-in. 116 GTEC FLOORS AND CEILINGS – PERFORMANCE TABLES. Some builders like to space fasteners tighter than that, so they go down to 12 inches. It is best to attach boards with 25-mm (1-in. ), I have a question regarding ceiling joists. 1”x3” boards are recommended for use as furring. Timber joist Construction tips www. State laws and. Separating / compartment floors are often specified as fire and sound resisting floors. The general concept of drywall hanging is very simple. nStagger butt end (cut end) joints so joint does not extend across the ceiling. Win more clients on-the-spot, with detailed, and professional estimates. The span where the joists meet the staircase is approximately 13 ft, and where. On edges where walls intersect or on walls that meet the ceiling, 8 inches of spacing is a good rule of thumb. They are manufactured using high quality steel and are available in a wide range of sizes. Exhibits relatively good pull-out resistance. 1 & 2 2X8 2X10 2X12 Subfloor Installation Joist Spacing Joist Spacing Joist Spacing Thickness 12” 16” 12” 16” 12” 16” A 12-2 11-7 14-4 13-8 16-5 15-7 5/8 B 13-6 12-10 15-10 15-1 18-1 17-3 C 13-9 12-10 15-10 14-10 17-10 16-7. APA Performance Rated I-joists (PRIs) are manufactured in accordance with PRI-400, Performance Standard for APA EWS I-joists, Form X720. This means that the studs are set 16 inches apart along the two. The term binding joist is sometimes used to describe beams at floor level running perpendicular to the ridge of a gable roof and joined to the intermediate posts. Screw the Drywall Into the Joists. ) And with it being built in 96, I’d imagine that they should be about 16″ apart. This board is an alternative to 5/8″ gypsum board when attached to ceiling joists or trusses spaced 24″ o. Did you ever notice that the recommended on center spacing of ceiling joints is quite often closer when attaching drywall parallel to the joists? see chart below form USG Handbook:. The lowest is a plain ceiling joist with no storage (10 pounds per square foot). Make a mark on each wall directly below where the joist is located. Wall Framing 4. Screws are a better bet than nails for renovation projects, where hammering can potentially disturb or damage the joists. That could put more pressure on the ceiling joists and could force them to move over time. I'd really appreciate any help. New Construction. Secure the fan body 1 to the joist with suspension brackets 3, 4, 5 using long wood screws. The ceiling joist are 2 x 4, can I do the blocking between the joists with 2x4, so I can have something to nail the top plate up. Most installations today are at the 24” spacing however depending on drywall thickness and whether or not the drywall is fire rated, this spacing can change. For ceilings, the bars should be spaced at 400 to 450mm centres and fitted across the joists or battens to which they are to be fixed and also around the perimeter. Gypsum Board 3. To remember it, think of the sheet of drywall as a train car and the studs as the railroad tracks. To hang a 4 x 8 sheet of drywall, the cost is around $65, and it’s around $100 for a 4 x 12 sheet. Its criteria is : If there is a fire in this floor, people upstairs may hav … hours to escape. Locate Hidden joists by tapping on the ceiling until you hear a solid thud. Installing Paneling and Drywall. Mark the location of the wall on the ceiling structure above using your chalk line, then attach the top track to the ceiling using the appropriate connector for the specific ceiling framing materials (typically 24 inches on center). 5 is now often used. We used to blow 50 galllons of water per 1000 sq ft of acoustic texture on celings and they would look like upside down rainbows in half inch board. a great step by step guide for how to drywall a ceiling with only 2 people without renting any tools. Check out my super easy trick to find wall studs (and even ceiling joists!) that involves no measuring, no math, & no unreliable electronic stud finder. Ceiling Option 1: For our Dining Room Ceiling and the Ceiling in the new basement Bathroom we used a thinner beadboard product. Hi All, I'm currently in the process of removing our basement's ancient, crumbling plaster ceiling as step one of making the space usable. APA Performance Rated I-joists (PRIs) are manufactured in accordance with PRI-400, Performance Standard for APA EWS I-joists, Form X720. If a ceiling is bowed, sagging or dropped down, then the reason may relate to a structural issues. The section of the ceiling is approximately 33' by 11'. In that way I don't have to worry too much about truss uplift and I also don't have to do a heeled truss. Select the on center spacing for the joists. Once you've located the first one, the others are easier to find. Indent face paper without. Ceiling joist size and thickness shall be determined in accordance with the limits set forth in Tables R804. 5-inch maximum spacing between the fasteners. This is how far apart they will be. , through recessed lighting, flat paint, and other methods), the goal of every ceiling drywall installation should be to reduce or eliminate errors during construction. Framing over-spanned: drywall installed at right angles to the supporting framing can span 24" (1/2" or 5/8" thick drywall) on walls, but on ceilings 1/2-inch or 5/8-inch drywall can span 24 inches only if it is installed perpendicular to the joists and supports less than 1. Some builders like to space fasteners tighter than that, so they go down to 12 inches. HouseBuilder Ruby PlugIn Garage Tutorial corrected for proper Spacing. ) 7" ceilings 2. #018997 Fan/Fixture Box Pkg FBRS40712R 72247 Adjustable steel bracket, 1 10 for 12 - 16" on center spacing. Although 2-inch by 6-inch lumber is used most often in ceiling construction to support 5-foot by 8-foot sheetrock --- the material commonly used for ceilings --- other sizes of lumber may be used, such as 2-inch by 4-inch and 2-inch by 8-inch lumber. What is the maximum gap along the floor for. IB MAX- CORE® I-JOISTS span longer distances (up to 52 ft. CEILINGS: fiSTEELfiSTUD 71 Mechanical joints are required where the maximum spans of the ceiling exceeds those allowable for friction joints, or where a more positive connection is required (see Figure 2). Fixing to Steel Joists Fasten the ceiling batten at every support using a 10x16mm hex-head self-drilling screw (minimum fixing size) through each flange as shown in figure 3. To handle 16 inches of fiberglass insulation, add four psf. org non-structural end cap to C-shapes - both studs and joists - and is specified to the same thickness as structural studs and joists/rafters. Reduce the risk - tested and engineered to be code compliant. Many drywall contractors would prefer using a thinner lightweight material. a great step by step guide for how to drywall a ceiling with only 2 people without renting any tools. Drywall panels are typically produced in lengths up to 16-ft and standard widths of 48 and 54 inches. The ceiling joists run horizontal to the following images. doc Page 1 of 2 Roof and Floor Framing SPAN TABLES CITY OF ESCONDIDO • BUILDING DIVISION • 201 N. For the walls, you shouldn't have the same sagging issues as the. You can also get 1/2" sag resistant drywall that is specially designed to handle 24" OC ceiling joists, but I can't find it at the major HI stores online, so this may be a special order. Easily accept payments online to save time, get paid faster, and avoid unnecessary trips to the job site. Web stiffeners 2. Before you apply texture on a ceiling, verify the thickness of the drywall, the joist spacing, and the application direction of the panels to avoid potential problems. Cut-away ceiling plan alongside (12. 12 16 24 12 16 24 12 16 24 12 16 24. To change it, click on another option. The customer provided the following information; height and spacing of the floor joist- 2 x 12, 16” on center; construction of the subfloor above-one layer of ¾” thick plywood screwed to the floor joist; and the finished floor above- new hardwood floors and some. Slip the OSB into the bracket, and lift the other end, and screw it into the rafters. Quickly memorize the terms, phrases and much more. For the most common condition where a single layer of the gypsum board is to be textured and is installed without an adhesive to ceiling joists or trusses spaced at 16 inches, industry standards recommend and codes usually require a ½ inch thick gypsum board placed with the long direction perpendicular to the span of the joists or trusses, fastened with 1-3 / 8 inch long nails spaced at no. A ceiling joist is basically a large board that supports your ceiling, and if you have one, the floor above. The bracket can. The ceiling joists should be spaced at 300/400mm centres. Design L581 allows for substitutions of many joist types. joists or studs in floor, roof and wall assemblies, Section 722. Drywall furring channel is installed perpendicular to the cold rolled channel at 16" o. Win more clients on-the-spot, with detailed, and professional estimates. If you have a new home, the basement usually is deep enough and ceiling height usually isn't a concern, so you have your choice. URB FR-X1 ILT edge DXLTZ, DXLTZA 2 x 2—24%; 10 bar joists 24 o. The vibration of driving nails into ceiling or floor joists will cause drywall screws and nails to loosen. org non-structural end cap to C-shapes - both studs and joists - and is specified to the same thickness as structural studs and joists/rafters. I wanted to ensure that the 2x4s (first beam layer) were screwed into the joists. On walls and ceilings, the channel should be mounted at a right angle to the framing. Most lay outs are on 16″ so the field is pre-selected. We use 2″ x 4″‘s we call “cross-member-framing” to complete the bottom of the soffit framing. the rafters are 2"x6" there's no connection between the rafters and joist except of course at the walls. Furring a ceiling involves adding strips that provide a secure base to hold the drywall. Figure 1-66. UR 12 x 24 2 x 4—24% 10 bar joists 24 o. With suspended systems, you can lose about three to five inches. Remember, a sheet of drywall is 4 feet, or 48 inches wide. Drywall is more rigid along its length than its width, so if it's installed parallel to the joists it's more likely to sag than if it's perpendicular. Improperly sized ceiling joist. Finish nailer used to blind nail boards through tongue into joist. I even had the house plans and knew the direction of the floor joists. Install the border with construction or panel adhesive and drywall screws that penetrate joists at least 1 in. The first Stud, Rafter, Joist, etc. Tail joists over 12 feet. For joist spacing 16 in. New construction housings are specifically designed for locations with visible ceiling joists and without drywall–usually that’s new construction, but these can be used for remodels if you’re gutting the space. IF you need an attic to store lots of heavy stuff, change the joists from 24 inch on center down to 16 inch on center. improve this answer. Door jams 4. 4 Secure drywall to 1x3 strapping with 1 5/8. The wood planks are up on the ceiling - yay! So now I'm finally sharing how to install a wood planked ceiling all on your own. Step 4: Use a drywall saw to pierce and cut out the shape of the box in the ceiling. I'm leery of sagging ceilings with joists 24″ on center, so I am considering 3/4″ drywall, or screwing 1 x 2 stringers perpendicular to the joists, either 16″ on center or 12″ on center in a small bathroom where the humidity could contribute to sagging. ) should be provided between the ceiling perimeter and adjacent walls and filled with acoustical sealant. The joists may not be perfectly spaced and you only have a 1-1/2 inch target for attaching two edges of the drywall. Install panels on walls and ceilings in locations and in patterns indicated on Architect’s drawings and in accordance with manufacturer’s printed instructions, using approved anchors and fasteners. Table 8: Spans for Common Domestic Timber Ceiling Joist Sizes at 400mm spacing (Strength Class C24) 4x2 can span around 1. I have used my studfinder and it indicates my joists run across my garage. Always install ceiling first, then install walls, allowing a space of at least 1/2" off of the floor. If the board isn't quite straight, nail part of it, then push the offending end into line. Run a string, get a little line level that will hang on the string and fasten the 1 x 4 strapping to your joists and shim to make it all level. And yes, a 1x (probably 3/4" actual) would likely split at every screw or nail point unless you drilled pilot holes. at edges and ends. That could put more pressure on the ceiling joists and could force them to move over time. This can be verified by the Seams on the 4x8 Sheets of Material placed on. 3/8" ceiling (2, 3) perpendicular (3) 16 — sidewall parallel or perpendicular 16 1/2" ceiling (4. Ceiling drywall should always be installed perpendicular to the joists, even when they are 16 inches on-center. Common arguments against 24-in. Locating Studs and Joists The best place to start is to get an understanding of your wall stud or ceiling joist spacing. Second, another crucial use of drywall is in creating fire rated separations within buildings. frame spacing is 16 o. Ceiling joists are generally 400mm or 600mm apart. On ceilings, you'll need a minimum of one screw every 12 inches regardless of joist spacing. Airtight construction reduces energy costs by reducing the amount of air escaping through the ceiling. Enter a span for the joist. Keep in mind that with plaster and lath walls/ceilings it may be a bit more difficult to determine where the studs are, because the lath can be. Nail or screw drywall to the joists. After we have made sure the ceiling frame is level and secured properly, we've decided to install mineral wool insulation and an anti-vapor foil, for both saving energy and ensuring a long lifespan for the drywall ceiling. Although 2-inch by 6-inch lumber is used most often in ceiling construction to support 5-foot by 8-foot sheetrock --- the material commonly used for ceilings --- other sizes of lumber may be used, such as 2-inch by 4-inch and 2-inch by 8-inch lumber. No blocking required above header. iLevel Trus Joist® TJI® Joist Specifier’s Guide TJ-4000 February 2008 ALL IN ONE™ 2 Design Properties 3 Material Weights 3 Floor Span Tables 4 Floor Load Tables 5 PSF to PLF Conversion Table 5 Floor Performance 6 TJ-Pro™ Rated Floor System 7 Silent Floor® Joist Framing 8 Floor Details 9 Fastener Spacing and Diaphragm Design 9. Tail joists over 12 feet. What is the recommended spacing if I plan on using 5/8 inch drywall? Or would 1/2 inch drywall suffice? Simply put, I know how to hang drywall, tape and mud, but I wasn't taught the particulars. Guideline-17. Drywall — made from gypsum wrapped with paper facing that’s fastened to metal studs or ceilings joists — is used to form walls and ceilings. For double nailing, the edge spacing is the same, except the nails in the field are spaced 12-inches on center with 2 to 2 ½-inches between nail pairs, see Figure 2-2. When I drill in those places, I get through the drywall, then a slight resistance, then the whole 3" bit goes right through and all I get is insulation and drywall dust. If the studs are of good quality and the drywall is installed correctly, I've not heard of problems due to 24-inch stud spacing. 4 Secure drywall to 1x3 strapping with 1 5/8. Place all marks for ceiling joist locations on outside truss faces. If the wall is running perpendicular to the ceiling joists, you can locate the ceiling joists above and fasten to them through the drywall. This means that the studs are set 16 inches apart along the two. An interior wall is typically built from 2-by-4 or 2-by-6 wall studs and framing, covered with panels of gypsum drywall that are nailed or screwed to the framing members.   The long edges of drywall panels are tapered slightly to accommodate joint tape and compound. Step 5: Move any insulation impeding your access to the joists on either side of the mounting box. Architect suggests 5/8" drywall on stud spacing of 24" centers for the interior wall. Studs in a non-load bearing wall may be up to 24 inches apart for 2x4's, and 16 inches for 2x3's. But the seams between the sheets, whether they are drywall or OSB, needs to be taped on the common walls and ceiling with common attic like Jim L pointed out. Using a nail gun will also save your arms and wrists and make for quicker project completion. When a living space exists above the garage then 5/8" type X gyp. Dropped (Suspended) Ceiling. The vertical posts of your overhead rack need not. The WhisperClip is lab-tested to be the highest performance resilient isolation clip available. Although 2-inch by 6-inch lumber is used most often in ceiling construction to support 5-foot by 8-foot sheetrock --- the material commonly used for ceilings --- other sizes of lumber may be used, such as 2-inch by 4-inch and 2-inch by 8-inch lumber. 32 Drywall sheet being hung. ANSWER: CSST is usually routed beneath, through and alongside floor joists in your basement, inside interior wall cavities and on top of ceiling joists in attic spaces or connected to fixed appliances such as water heaters. Allowable deflection for this floor joist is approxi-mately 1/2 in. This is especially true in buildings where the joists are spaced farther apart. 6 Ceilings constructed of gypsum board which is screw or nail attached to suspended members that support a ceiling on one level extending from wall to wall shall be exempt from the requirements of this practice. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Locating Studs and Joists The best place to start is to get an understanding of your wall stud or ceiling joist spacing. 00 sqft Conventional 5/8” Drywall + 5/8” Drywall, 2x4 wood studs 24” OC + R13 Fiberglass 5/8” Drywall 42 $1. The link below provides additional information and span tables for TJI® Joists in ceiling applications. Table 1: ROOF BEAMS, JOISTS, RAFTERS, PURLINS Roof weight 40 kg/m2 EXCLUDING PLASTER BOARD CEILINGS IN RESIDENTIAL - see Table 2 CODE BEAM SIZE (mm) SPACING (mm) 450 600 900 1200 1800 2400 T257aP10 248 x 71 8. To hang a 4 x 8 sheet of drywall, the cost is around $65, and it’s around $100 for a 4 x 12 sheet. Never place a butt end next to a tapered edge. Obviously the rafters should have been fastened next to the CJ’s but there are times when that is not going to happen (spacing on center, bastard / irregular pitches, etc. 13 and 2012 IRC Section R501. The vast majority of floor joist systems are built with 16" OC (on center) spacing. Apply to all exposed faces within the floor joist bay, include new block and exposed rim joist and under sub floor. answered Aug 4 '14 at 22:39. You'll want to secure them to wall studs and or ceiling joists, but if that spacing is not what you want, then heavy drywall anchors will work. 5 mm subfloors either nailed or glued and nailed to the joists. The first Stud, Rafter, Joist, etc. The area to be covered is digitized. Highlight on the applicable tables the size, gauge, spacing and allowable height and spans C. However, with approval of the building official, the empirical methods in IBC 721. If he chose to nail the top the ceiling joist, then the dept of closet would be too shallow, so he moved the top plate about 3 in out. They are economical; aesthetically pleasing and can safely accommodate integrated sub-systems, recessed light fixtures and ventilating units without impairing their fire rating capabilities. Drywall is attached to the studs with metal screws that can be located with an electronic stud finder or a magnet off your fridge. Without that extra thickness, the drywall wouldn’t be able to span the space and stay straight and firm. 5 2 30 22181513 4 59 44363025 6 89 67534438 8 119 89 71 59 51 10 148 111 89 74 63. 9 m ] or less shall be exempt from the lateral force bracing requirements of 5. Drive the fasteners in. Common arguments against 24-in. UL Assembly Approved Ceiling Tile/ Suspension Maximum Fix. Mid-span joist spacing (in) o. You can place the strapping at 16OC and use 1/2" drywall. Ceiling joists are usually installed either 16 or 24 inches on center, which means roughly 16 or 24 inches apart. Casing or finish nails spaced 6 inches (152 mm) on panel edges, 12 inches (305 mm) at intermediate edges. Run a string, get a little line level that will hang on the string and fasten the 1 x 4 strapping to your joists and shim to make it all level. I will have 2x4 or 2x6 joists that will be supported on the interior walls themselves and on ledger attached to the exterior ICF walls and that will create the ceiling structure supporting the ceiling drywall and the insulation. For ceilings, the bars should be spaced at 400 to 450mm centres and fitted across the joists or battens to which they are to be fixed and also around the perimeter. 5 mm ceilings(3) perpendicular(4) 400 16 (3/8 ) parallel(4) 400 16 12. 4 (1) CEILING JOIST SPANS FOR COMMON LUMBER SPECIES (Uninhabitable attics without storage, live load = 10 psf, L/Δ = 240) SPACING (inches) SPECIES AND GRADE. 3/8" ceiling (2, 3) perpendicular (3) 16 — sidewall parallel or perpendicular 16 1/2" ceiling (4. When I drill in those places, I get through the drywall, then a slight resistance, then the whole 3" bit goes right through and all I get is insulation and drywall dust. On commercial projects I usually add 1' at the top and 1' below the ceiling height. That could put more pressure on the ceiling joists and could force them to move over time.
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