Durock screws for steel studs

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10. (38 mm) 11-gauge hot-dipped galvanized roofi ng nails, or USG DurockTM Brand Tile Backer Screws for wood framing or 1-1/4 in. SKU: BLX23301C. 4 mm (1/4") CGC Durock Cement Board Next Gen for wall or ceiling applications. . 9. Add To Cart. 6. stujd. and 1-5/8 in. There we will gather the necessary specs to recommend the product you will need. Thermal hazards None. fire rating with double-layer construction when The #8 x 1-5/8 in. Cement board over a 6 mil vapor barrier directly into the studs. 6. Do not use drywall joint tape. FREE delivery Jan 10 - 11. FASTENING. The sharp point would not penetrate or self-drill into a cement block wall. Find Rock-On screws at Lowe's today. (M) If you haven't already seen the comprehensive documentation by Colonelcorn76 (Jim Hatch) on Yahoo, for building your gable house, this is a MUST VIEW! This is useful whether you build from scratch or want to enclose a pre-cast Forno-Bravo oven. Model # 23301. We strive to provide opinions, articles, discussions and history related to Hearth Products and in a more general sense, energy Nov 22, 2005 · Metal Stud Framing Course By The Col. Choose your length, head style and point. Shop metal studs and a variety of building supplies products online at Lowes. website:smartbar. Durock Stabilizers V2 Features: Nylon PA Plastic Pr. It's literally just a feel thing. Hand protection Use of protective gloves while handling screws are recommended. #2 Square, Wafer Head, Type 316 Stainless Steel Fiber-Cement Screw (75-Pack) part # T08C162WQ-RP75 are sharp point screws designed to secure Fiber-Cement siding planks to wood framing. Showing 2 of 2 products. Our business is your business. Designed to resist 1500+ hours of salt-spray testing before developing 5% red rust (per ASTM B117). PTH SD Zi Self-drilling framing screws. 1-1/4" Durock Screw for Steel Framing — X X 1/2" 1-5/8" Durock Screw for Steel Framing — X X 5/8" For Wood Framing For Steel Framing strip-out – prevention ribs #8-gauge wire size threading self-drilling point Large wafer-type head Large wafer-type head Recex® Combo Drive Install screws with screw-heads flush with panel surface Rock-On 1-5/8 in. #82. nails or 1-1/4" USG Durock™ tile backer screws for wood framing or equivalent. Since 1974, Steeler has been offering high-quality steel stud construction supplies at a competitive price. Jan 28, 2011 · Slate and durock fireplace surround. Choose options. • Steel framing: 1-1/4" USG Durock™ tile backer screws for steel framing or equivalent. demo. JOINING Fill joints with latex-fortified mortar or Type 1 organic adhesive and immediately embed alkali-resistant, fiberglass mesh joint tape. ) Leave a 1/8 gap between all panel edges. 4 mm (1/4 in. for 14- to 20-gauge steel framing; USG Durock™ Brand Tile Backer Screws for wood framing (or equivalent), 32 mm, 41 mm and 57 mm for wood framing. Cement Board Screws are designed for attaching Durock, Wonder board or equivalent glass-mesh cement backerboard to wood or light gauge steel studs. CGC Durock Cement Board is preferred by many applicators as a base for directly applied finishes, (For steel stud2 applications, use 32 mm (1-1/4") CGC Durock® Brand Steel Screws). Jan 28, 2011. depending on cladding loads. CGC DUROCK® Brand Screws are high-quality, corrosion-resistant fasteners specially designed for attaching various type of backerboards and underlayments to wood. 9. Be certain to drive them to flush with the backerboard surface to prevent interference with the subsequent wall materials. Cement board is made of, well, cement - and cement is brittle. Trust AFT as your source for screws for concrete board and more. For 1/2 inch thick cement board, use 1-1/4 inch to 1-3/8 inch long screws. Cement board screws are designed for attaching hardback or equivalent fiber cement Backer-On to wood or light gauge steel studs. Great pricing and fast shipping on cement board screws, also known as metal stud screws. Just cut 3" wide strips off the end of a sheet. Model # 23301C SKU # 1001157620. Both wood and steel screws are available. Secure panels while adhesive is still wet. Where tile finish is not required on both sides of a partition, omit tile backer board from un-tiled side and provide a double. C. The Rock-On 1-1/4 in. Ideal for attachment of cement board to wood-framing members. label. carbide-tipped blade. Nails 38 mm hot-dipped galvanized roofing nails). Coming in both smokey and clear housing to universally fit the aesthetic of any PCB board. After joints are treated, ceramic wall or floor tile is applied using latex fortified mortar or Type 1 organic adhesive. The screws are in the same aisle (HD) as the sheetrock, durock, corner bead, etc You can also use roofing nails. The off center load of your stone will try to twist the wall and it's weight will be trying to compress the wall, two different things. Recommended lengths are 1-1/4” for 1/2” board, 1-1/2” for 5/8” board, and 2-1/2” for 1” board. (406 mm) o. Wall Boards: Tile backer board installed over gypsum board base. Off-the-shelf aluminum studs are generally not thick enough to support an outdoor kitchen. 0 at Check Nearby Stores. - Corrosion-resistant coating. Active since 1995, Hearth. PermaBASE™ Cement Board Screws are corrosion-resistant screws specifically designed to be used with PermaBASE® Cement Boards and Foam Tile Backer. com Version Date: June 6, 2012 Version: 8 High-quality, corrosion-resistant fasteners designed for attaching multiple types of backerboards and underlayments to wood or steel framing, inside and out. PermaBASE Cement Board Screws feature a larger diameter wafer-type head and a durable corrosion-resistant coating. for ceilings,or using 1-1/4 DUROCK BrandWood Screws with the same spacing. Use the metal gauge as a litmus test for how sturdy your outdoor kitchen framing material will be. Find drywall screws at Lowe's today. Can Rock-On and Backer-On USG Durock™ Brand Screws for Wood or Metal Studs SDS US 929133 Version #: 02 Revision date: 22-May-2019 Issue date: 03-August-2015 1 / 6 Eye contact In case of contact, do not rub or scratch your eyes. Steel framing must be 20-gauge equivalent or heavier. ) 7. Rock-On Use to install Durock, wonderboard backerboard and cement board; USG Durock® Brand Cement Board with EdgeGuard™ panels should be cut to size with a knife and straightedge. Jul 2, 2020 · The Backer-On 1-5/8 in. Dec 22, 2023 · A higher gauge means the metal frame for an outdoor kitchen is thinner. 5 mm (3/8 inch) wide. Power saw: Use a low-RPM portable saw with a 3-1/2 in. The thread design and mod­i­fied wafer head on the PAM­Fast Cement Board screws deliv­er a con­sis­tent coun­ter­sink and hold­ing power. Backer-On® cement screws are designed for attaching Hardie-Backer® cement board and Rock-On® cement board screws are designed for attaching Durock® cement board to wood or light gauge steel studs. 11. The Star Drive recess with T-25 bit provides Stikfit&trade; for one-handed installation. Problem is that Hardie and Durock backer board specifies 16" maximum (assuming no drywall is underneath). or steel framing spaced 16 in. Be sure to check the manufacturer’s instructions for recommendations on screw length for We may earn a commission for products purchased through links on this page Jan 7, 2024 · Instead, frame the openings 3-in. For wood framing, use 32 mm (1-1/4 ), 41 mm (1-5/8 ) or smooth side rough textured side smooth wrapped edges coated glass-fiber mesh aggregated portland cement core cut edge DUROCK Brand Wood (above) and Steel Screws (below) DUROCK Brand Cement Features. These are corrosion-resistant and provide strong fastening power. Wood framing and countertops: fasten with 1-1/2 in. The most common type of screws to use are drywall screws. #2. Overview. Drive nails and screws so that bottoms of heads are flush with panel surface to ensure firm Zkeebs DUROCK V2 Screw-in Stabilizers, 7U, 6. The length of screw you need will depend on the thickness of the item you are attaching and the depth of the wood stud. Feb 6, 2013 · 1-5/8" Durock Screw for Steel Framing 4,000 pcs 4,000 pcs/ctn<br /> thread design for wood framing and a self-drilling thread design for 14 to 20 gauge metal stud Fasten board to wood studs spaced at 16 o. Steel framing: USG Durock™ Tile Backer Screws for steel framing (or equivalent), 1-1/4" and 1-5/8" for 14- to 20-gauge steel framing. In addition to delivering top-grade products, we strive to provide our customers with industry-leading service and support before, during, and after a project, because we know trusting The length of the cement board screws that you need depends on the thickness of the board you are using. Yes, but not just for rigidity. This niche is made from sheet stainless steel with a brushed finish so it does not require tiling. • Steel framing: 1-1/4 in. Where horizontally oriented From $3. *On center is the spacing between the FastenMaster’s PAM­Fast Cement Board screws are a great option for cement board, as they are designed for attach­ing USG Durock® and Hardiebacker® tile to wood on any site. for 14- to 20-gauge steel framing; USG Durock™ Tile Backer Screws for wood framing Apr 29, 2009 · There are basically 2 types of screws used fir the assembly of steel stud walls, pan head black phosphate and truss head. 653. Durock® Brand Cement Board with EdgeGuard Dec 23, 2008 · Hearth Supporter. 1766. studs spaced 24 o. for pricing and availability. Shop the Collection. Metric and inch sizing options are also available for most screw types. Increased bearing surface provides greater pull-through resistance. Cement board screws are designed for attaching Rock-On, wonder board or equivalent glass-mesh cement Backer-On to wood or light gauge steel studs. Design: Both wood and steel screws are a wafer-head design with strip-o ut-prevention Q&A. Lay down cement boards over mortar, one at a time. Rock-On®'s patented serrated head design countersinks for flush seating at any angle, providing a smooth surface for tile. By gluing the board as well as screwing, you 32 mm USG Durock® Brand Tile Backer Screws for steel framing (or equivalent) or 38 mm hotdipped galvanized roofing nails spaced 200 mm o. Easy to drive thanks to excellent drilling characteristics. USG Durock™ tile backer screws for steel framing can be used with steel framing where steel thickness is from 14- to 20-gauge; they come in two lengths: 1-1/4" and 1-5/8". Drywall screw S-DD 12-14x1 TPCH3 Z #2098865. Power saws should be used only if it is equipped with a dust collection device. $23 . steel framing, use 32 mm (1-1/4 ) and 41 mm (1-5/8 ) DUROCK Brand Steel Screws. For more information visit the USG website. O. steel studs and the appropriate fasteners prescribed by USG – Steel framing: 1-1/4" Durock™ brand tile backer screws for steel framing or equivalent. Find My Store. for walls,6 o. Screw head type: Pancake head. 25U, 2U Clear PCB Mount Stabilizer Pre-Clipped, Wire Popping PCB Screw Stabs for Mechanical Keyboards (80% TKL Kit) (Miami Vice Teal) $2049. The bucks are also there for nailing on the casing. Shop drywall screws and a variety of hardware products online at Lowes. Jun 12, 2007 · 11194 posts · Joined 2007. Divide that seven into 600 pounds and the load per stud doesn't sound so bad at about 85 pounds per stud. SKU: GBRGCB8158HL. with corrosion-resistant wood screws, steel screws or hot-dipped galvanized roofing nails. 4. Shop specialty screws and a variety of hardware products online at Lowes. bearing. Standard Delivery. • Fasteners should be driven flush with the panel surface (not countersunk) and into the framing system. The screws come with Drive nails and screws so bottoms of heads are flush with panel surface to ensure firm panel contact with framing. Open the catalog to page 2. around the perimeter and in the fi eld of the board. Drive nails and screws so that bottoms of heads are flush with panel surface to ensure firm Durock™ Brand Tile Backer Screws for wood framing come in three lengths: 1-1/4", 1-5/8" and 2-1/4". 42") over my drywall to the steel studs to adhere 6" x 24" x1" stone ledger panels using polymer modified thin-set, floor to ceiling is 12'. The pan head black phosphate are often referred to as "framers" and are the prevalent screw used and the "tech" version, are the self drilling. you shouldn't have any problems. • Steel framing: 32 mm (1-1/4 in. usg. Backer-On's patented serrated head design countersinks for flush seating at any angle, providing a smooth surface for tile. USG Durock™ Brand Screws for Wood or Metal Studs SDS US 929133 Version #: 01 Revision date: - Issue date: 03-August-2015 2 / 6 galvanized steel framing members, typically 18 to 20 gauge Z-girt profiles attached horizontally to steel studs or a concrete back-up wall. SHIM Place a 1/4" spacer strip or Packaged in convenient jars and pails for jobsite durability. The screws should be heat-treated and corrosion-resistant, such as stainless steel or zinc-plated steel. Yes, they make ceramic spacers for this purpose or you could make your own out of sections of 3/8" copper pipe. Dec 13, 2017 · A 96" long wall with studs spaced 16" center to center has seven studs. They vary in length from 1″ to 3″ with the average being about 1 ½”. Approved fasteners include: USG Durock™ Tile Backer Screws for steel framing (or equivalent), 1-1/4 in. DUROCKTM Screws for Wood or Metal Studs MSDS #14-980-001 Page 1 of 7 14980001 SECTION 1 CHEMICAL PRODUCT AND IDENTIFICATION United States Gypsum Company 550 West Adams Street Chicago, Illinois 60661-3637 A Subsidiary of USG Corporation Product Safety: 1 (800) 507-8899 www. Regular sheet rock screws will snap when trying to pull down Durock. Space the sheet metal screws about 6 to 8 inches apart. #8 1-5/8" Cement Board Screw. Highlights: - Can be used for interior and exterior applications. Obvisouly a concern is getting them flush so that the overlaying courses aren't forced to lay proud of the course below to much. Fastening Minimum panel thickness for 5. —Screws must be driven straight to assure optimal performance. Title: USG Durock Brand Screws for Wood or Metal Studs SDS (Español) - 05000014002 Author: i57987 Created Date: 5/22/2019 3:06:53 PM Description: Studs: 3-5/8 inches nominal, 25 gage steel studs, non-load. 1. Additionally, these stems do not require any clipping for fast & easy set up. wider and 1-1/2 in. (32 mm) USG Durock™ Brand Tile Backer Screws for steel framing or equivalent. Durock™ Brand Tile Backer Screws for wood framing or equivalent. Even though the board is screwed in with lots and lots of screws, each screw hole is a stress point prone to breakage. 32 mm USG Durock® Brand Tile Backer Screws for steel framing (or equivalent) or 38 mm hotdipped galvanized roofing nails spaced 200 mm o. SHIM In ceiling applications, screws should be placed every 6"". Shop our selection of Cement Board Screws in the section of Screws in the Building Materials Department at The Home Depot Canada. Both wood and steel screws have heads a minimum of 0. 3. framing and 1-1/4” (32 mm) for steel framing. Fasten board to wood studs spaced at 16 o. Rock-On For 14 to 20-ga. Call our Technical Support team at 800-874-4968 (Monday-Friday, 7:30 am - 4 pm Central). in both directions with perimeter fasteners at least 10 mm and less than 16 mm from ends and edges. (203 mm) o. They can be used for the following applications and the recommended number of screws to use per 3×5 board. SHIM Nov 2, 2022 · Step 3: Lay down 1/4″ Durock cement board sheets leaving 1/4″ between the wall and the Durock. Some of Grabber's innovations in the screw industry include UltraPro ®, GrabberGard coating, Scavenger ® Head, and Vector point. Best to use the screws meant for Durock, since they have a larger head to pull it down, without pulling through. The Backer-On 1-5/8 in. You will use approximately 55 screws per 3' x 5' cement board and 150 screws per 4' x 8' cement board. ) thick. SHEETROCK Brand Gypsum Panels, ULTRACODE Core, provide a 4-hr. (For steel stud applications,use 1-1/4 DUROCK Brand Steel Screws. #7 x 1/2-in Socket Hex-Drive Sheet Metal Screws (100-Count) Find My Store. Dec 16, 2007 · Dec 21, 2007. In wall applications, screws should be placed every 8"" when connecting to the wall studs. Webmaster said: The screws will self drill right into the sheet metal - I think regular sheet rock screws do this. button. Grabber Construction Products. ) CGC Durock™ Tile Backer Screws for steel framing or equivalent. Do not use 1/4" USG Durock® cement board for wall or ceiling applications. higher and use drywall screws to fasten 2×4 bucks on the inside of the steel opening, then hang your door from the wood bucks. Corrosion- and has wafer heads with ribs to prevent strip out. Slide a plastic shim under each side 2×4 if the wood is going to be in direct contact with a concrete floor. If you're using the minimum 20ga. Save 6% with coupon. The membrane bonding flange mounts on the backer board surface with screws, and the waterproofing membrane is attached to the top surface of this flange (as seen in the above image). Problem I guess is deflection (bowing). Do not use drywall screws or drywall nails. website:common. Can be used for interior and exterior applications. Do not use USG Durock® cement board with vinyl flooring. Prefill joints with tile-setting mortar or adhesive and then immediately embed USG Durock™ Brand Tile Backer Tape and level joints. 11-22-2005, 09:43 AM. Reply reply I wanted to screw Hardie backer board (. Dry fit and cut all panels before mixing tile mortar. DUROCK Steel Screws come in two lengths: 32 and 42 mm (1-1/4 and 1-5/8 ). Product Data Sizes: DUROCK Wood Screws come in two lengths: 32 and 57 mm (1-1/4 and 2-1/4 ). Available Online: 32. Precisely matched to Hilti drivers and bits – helping to achieve high-quality fastenings every time. SHIM Place a 1/4" spacer strip or Cement Board Screws. Or easier yet, snap off 3" wide, 3' or 5' long strips of the 1/2" Durock and pair them up to use as 1" thick vertical furring strips on the studs. *On center is the spacing between the Do not countersink screws. with corrosion-resistant wood or steel screws or hot-dipped galvanized roofing nails. 8 in. Space fasteners. Find Steel metal studs at Lowe's today. USG Durock® Brand Cement Board with EdgeGuard is preferred by many applicators as a base for (For steel stud2 applications, use 32 mm (1-1/4") CGC Durock® Brand Steel Screws). 40" in diameter Apr 28, 2022 · Best Screws for Attaching Drywall to Metal Studs. #5. Countertop Installation – 54 17. 625-in W x 120-in L x 1. c. (274) $27. USG Durock® cement board is not designed for use as a structural Nov 30, 2006 · Re: Hardi on steel stud walls I thought about the durock screws, because they are atleast treated to deal with moisture, and should have no problem getting started in the hardi. Locate fasteners at least 3/8” (9 mm) from the ends and edges of the sheathing. Oct 27, 2018. 318. It is important to pre-drill holes when using screws in 4. 1-1/4" Durock Screw for Steel Framing — X X 1/2" 1-5/8" Durock Screw for Steel Framing — X X 5/8" For Wood Framing For Steel Framing strip-out – prevention ribs #8-gauge wire size threading self-drilling point Large wafer-type head Large wafer-type head Recex® Combo Drive Install screws with screw-heads flush with panel surface Durock 1-5/8" Screws (350 count) DUROCK Screws are high-quality, corrosion-resistant fasteners specially designed for attaching various types of backerboards and underlayments to wood or steel framing members. 2. Corrosion-resistant coating. Recommended by Professional Contractors, builders and DIY homeowners. Once in your selection of types of screws, you can use the filters to help you find the recess, head type, thread type, coating, application, and more — so you'll get the right screws for the job. Double-Layer Partitions Double-layer 1/2 SHEETROCK Brand Gypsum Panels, FIRECODE C Core, attached to 2-1/2 min. After joints are treated, wall or floor tile is applied using latex-fortified mortar or Type I organic adhesive. For 5/8 inch thick cement board, use 1-1/2 inch to 1-5/8 inch long screws. Specially designed screws for attaching Durock cement board to wood framing. South Puget Sound, WA. Other Not necessary under normal conditions. Secure the backerboard sheet into place with sheet metal screws through the panel into the metal framing using a power screwdriver. DuROCK recommends that expansion joints be at least 12. Rock-On Cement Board Screws are designed for attaching fiber glass reinforced cement board such as Durock and WonderBoard to wood or light gauge steel framing. Cement Board Screws are designed for attaching HardieBacker or equivalent fiber cement backerboard to wood or light gauge steel studs. Nov 18, 2005. After joints are treated, wall or fl oor tile is applied using latex-fortifi ed mortar or Type I organic adhesive. Conversely, a lower gauge means the metal is thicker. Cladding systems are attached directly to the outer flange of the girts. To make cutouts for pipes and fixtures, use a utility knife to cut through the Our screws are manufactured from premium materials, including aluminum, stainless steel, silicon bronze, and more. Step 4: Add a bed of tile mortar to the subflooring with a v-notched trowel and comb it out in straight, parallel rows. If not, then a drip edge should be provided. Store SKU # 1002419404. BUYING OPTIONS. Durock™ Brand Tile Backer Screws are made with a special corrosion-resistant coating for ideal use in high-moisture environments and designed to enable flush seating and prevent strip-outs. DUROCK™ screws are high-quality fasteners for use with DUROCK cement board. Please feel free to call us at (800)-222-6990 or email us at tech@paslode. The Rock-On® 1-5/8" Cement Board Screws are designed for attaching Durock®, Wonderboard®, or equivalent glass-mesh cement backerboard to wood or light gauge steel studs. Available Online: 11500. Hilti has full control of the manufacturing process – delivering reliable, consistent quality. Double them up and you have the required 1" spacer. Fullerkreg #8-15 x 1-1/2" Drywall Screw, (150-Pcs Approximately 1 Pound),Phillips Bugle Head, 2 Drive Size, Fine Thread, Gray Phosphate, Sharp Point. Welcome to Steeler. SHIM Place a 6. Steel studs must be minimum 0. Both are available in "A" point and tech. 104,936. 72. Durock V2 Stabilizers are PCB mount screw-ins that now feature a mold to prevent wire drop out. 25-in D ProStud 3-5/8 20 GA Galvanized Steel Wall Framing Stud. 8. Do not use CGC Durock Cement Board Next Gen with vinyl flooring. They are corrosion-resistant and have wafer heads with ribs to prevent strip out. 7. JOINING Fill joints with latex-fortifi ed mortar or Type 1 organic adhesive and immediately embed alkali-resistant, fi berglass mesh joint tape. 9 mm (20 ga. 7 mm (1⁄2 inch) wide, and termination joints should be at least 9. USG Durock® Brand Cement Board with EdgeGuard is preferred by many applicators as a base for Dec 14, 2009 · The easiest way is use the durock itself to make furring strips. 7. Shop screws and a variety of hardware products online at Lowes. Durock® Brand Cement Board with EdgeGuard™ offers architects, builders and tile contractors a strong, water-durable tile backerboard for floors, walls, countertops, tub, shower areas and exterior finish systems. Jan 18, 2007 · Product Description. The most important tool in the wood burning process and the largest variable is the one that is running the stove. This will amount to roughly 25 screws per 3' x 5' cement board. #2 · Jun 12, 2007. Backer-On 1-5/8 in. 2" thick board, fasten with 2-1/2", 3" and 3-1/2" (respectively) corrosion resistant wafer-head screws with a minimum head diameter of 3/8" (10 mm). Do not use 6. When you screw the cement board in you create a pressure point or stress point. The length of the screw should be appropriate for the thickness of the Durock. The first niche shown is a finished shower niche. Interior metal framing screw (zinc-plated) for fastening stud or wire lath to track. provide a 2-hour fire rating plus sound control suitable for party walls. with corrosion-resistant wood, steel screws or hot-dipped galvanized roofi ng nails. CGC Durock™ Tile Backer Screws for wood framing or equivalent. 63 / each. layer, both sides of partition. Do not overdrive fasteners. com is THE place on the internet for free information and advice about wood stoves, pellet stoves and other energy saving equipment. Grabber Cement Board and High Density Sheathing Screws have been specifically designed for use with Cement board and High density exterior sheathing. The screws at Value Fastener are also available in various finishes, including zinc-plated, black oxide, yellow zinc, chrome, and more. 50. com. * with 1-1/2 hot-dipped galvanized roofing nails spaced 8 o. The termination of DuROCK Stucco Plus at soffits may require a drained joint between the exposed façade and the soffit. Typically girts are attached to the back-up wall every 24” to 48” o. Internet # 300662298. The ones I linked were self drilling, which was a fuckup, but the standard ones seem to have finer tips and grab into steel stud nicer. Grip Rite #8 x 1-5/8" Cement Board Screws, Pro-Twist, Flat Head with Nibs, (5 lb Tub/6 Tubs), #FCBDS1585. : On centre or the spacing between the centrelines of two structural members or fasteners. framing spaced 406 mm (16") o. All Hilti drill-point screws meet or exceed ASTM C 954 performance requirements. Rock-On's patented serrated head design countersinks for flush seating at any angle, providing a smooth surface for tile. 1-1/4" long screws are used for applying 5/16" Durock underlayment or 1/4", 1/2", and 5/8" Durock cement board to subfloors and countertops or 1/4" and 1/2" Durock cement board to walls Step 3. back. Framing members shall not vary more than 1/8” (3 mm) from the plane of the faces of adjacent framing. Respiratory protection Not necessary under normal conditions. rw vx pu tu qc db jg hc lo uk