Sturd-I-Floor® is an APA designation that is a combination subfloor-underlayment produced from OSB or plywood. 0. Compare; Find My Store. For 23/32- and 3/4-inch panels, joists should be 24 inches on center. BC plywood panels should be stored flat, under a roof if possible and be protected from the weather until you are ready to use them. Our T-PLY lineup includes good, better, and best plywood to meet your needs no matter your budget. The subfloor is the decking installed on top of flooring joists; the finished floor is then installed on top of the subfloor. Product Species Thickness Other Info; Southern Yellow Pine: 19/32”, 23/32” Tongue & Groove: Western Fir: 19/32”, 23/32” & 1-1/8” Scant & Full Face T-PLY Plywood products are graded to CSA and PS1-09 standards with the APA performing third-party quality auditing and testing. 106. 1. Plywood is available in many thicknesses (1/8”, 1/4”, 11/32”, 15/32”, 19/32”, 23/32” and 1 1/8”). The floor must also handle the weight of the tub, shower, tiles and other fixtures. Shop undefined 23/32 Cat Ps1-09 Tongue and Groove Douglas Fir Subfloor, Application as 4 x 8 in the Plywood department at Lowe's.com. It is especially suited as a subfloor for exterior vinyl covered decks and is endorsed by Duradek as the subfloor of choice. tions for plywood floors are based on performance under concentrated loads, how the floor “feels” to passing foot traffic, and other subjective factors which relate to public acceptance. If you want an even stiffer floor, be sure the wood floor system is designed to a 1/480 deflection maximum standard in lieu of the 1/360 standard mentioned above. As far as the plywood, BC grade Douglas Fir would be best, but I’m sure that a good brand of spruce CDX would be just fine, that’s what I just used for a floor repair in my own house just last week. 1. Panels classified as Exposure 1 are intended to resist the effects of moisture on structural perform- Model #520360. A sheet of plywood sold as 5/8 inch is usually labelled as 19/32 and actually will measure at 9/16 or less. Tile floors are especially heavy with layers of cement board, mortar, tile or stone and grout. He has published a novel and stage plays with SEEDS studio. Add screws/nails if needed. If you use self leveling compound remember that the surface should be primed first - follow the product's prep recommendations. The 3/4 inch thick plywood is sturdy.It can support the weight of a person and heavier equipment without fatiguing over time. Item #12181 Model #185109 For retrofitting older construction, 23/32- and 3/4-inch-thick panels can be used over 24-inch on center joists. Oh, and be sure to use a good urethane construction adhesive on all the joists as you are applying the new plywood. Install Luan plywood with staples to the subfloor plywood using 18mm or longer staples. You will need to determine the spacing before installing the joists, or measure the distance between joists for existing construction. At this point you have the choice to make as to whether you wish to use glue to adfix the luan to the plywood subflooring. BC plywood is exceptionally strong and stiff. The recommended thickness of the plywood subfloor is governed by the spacing of the joists. The second layer of plywood should be bc grade or better exposure 1(exterior glue)plywood. The system is designed for use on all of the most commonly used subfloor materials—plywood, OSB, concrete and gypsum-based screed. As far as the plywood, BC grade Douglas Fir would be best, but I’m sure that a good brand of spruce CDX would be just fine, that’s what I just used for a floor repair in my own house just last week. The plies, typically three to five, are cross-laid at 90-degree angles for strength and bonded together with resins under heat and pressure to form a single structural panel typically 4 feet wide and 8 feet long. This evolved plywood may claim an overall advantage over OSB, since plywood is a stiffer, longer-lasting subfloor option. we are planning to install a 1/2"-3/4" solid hardwood floor, and are trying to determine to correct way to do this with our existing 1/2" subfloor. Floor joists are made from 2-by-8-inch or 2-by-10-inch lumber, or from engineered quiet beams, which are made from a thin layer of chipboard on edge between two lumber caps forming an "I" shape. Plywood panels sold in the United States are stamped with grade marks in a format specified in National Plywood Standard PS 1-83. Being a mechanical engineer, I'm looking for help with wood subfloor loads and capacities. Shop plywood at Lowe's Canada online store. Backed by Tolko, the name builders have trusted for 60 years. Always check the maximum floor and roof spans for plywood before making a final plywood selection for these applications. we are renovating a 1970 built home and have taken out the existing carpet and linoleum, along with the 5/8" particle board subfloor, leaving only a 1/2" plywood layer, not t&g, over joists 16" oc. 3/4 x 4 x 8 Sturd-I-Floor Tongue & Groove Plywood Subfloor (Actual Size .688" x 47-1/2" x 95-7/8") Model Number: 1231302 Menards ® SKU: 1231302 Just screws, no glue is necessary. Density/Consistency – A sheet of plywood subfloor is typically just five to seven plies thick. x 2 ft. x 2 ft. panel, protecting your carpentry creations from fading, scratching and chipping. A subfloor is a wooden, structural substrate to which durable finished flooring is attached. Plywood is a necessity in many DIY and construction projects, but not every type of plywood works for every project. Using the right type plywood ensures a long-lasting floor. Build up from the lowest elevation, using the products that allow for enough incremental elevation gain to get to within flatness tolerance. The marks will specify whether the panel is for “interior” or “exterior” use, the face side grade and the back side grade. Underlayment bridges the large imperfections of subflooring, as a prep for finish flooring. Home Elegance: Plywood Grade and Span Ratings. And put in the nails every 8″. for pricing and availability. along intermediate supports; and for roof sheathing where HWP is equal to or greater than 0.8 kPa and less than 1.2 kPa, 50 mm o.c. 3. A building that is 6 stories or less in Greater Vancouver for instance could be made from wood or … within 1 m of the edges of the roof Plywood, OSB or waferboard over 20 mm and up to 25 mm thick 63 57 n/a 0. When NWFA Guidelines minimums are not met, the recommendations are to overlay the existing subfloor material with a 1⁄2-inch panel product or add structural support from below. Find top brands, compare products, read reviews & get the best deal for your plywood. Subfloor Thinner than the Underlayment. Is it ok to leave this as long as I use the 5/8" BC Exposure 1 or . Screw & Glue Subfloor and Screw Underlayment. Subfloor options. That usually means the underlayment and the subfloor also get wet. Using 18mm plywood Underlayment Installing 18mm Luan Plywood Underlayment for your vinyl or laminate flooring project. It’s imperative that the joists be inspected prior to installing plywood or OSB panels to ensure proper installation techniques have been followed and that all joists are flat, level, clean and dry. 1/4" plywood simply isn't stable enough to support a tile installation. A UV-resistant medium gloss coats the face veneer on this 1/4 in. Securing plywood underlayment to timber sub-floor. If storing outdoors, place panels on at least three 4-by-4-inch beams to keep them off the ground and cover them with an opaque plastic sheet or tarp fastened at the corners of the stack. Floor joist spacing has traditionally been 24 inches on center, or from center to center of the joists. Only install 5/8 to 3/4 engineered wood floors without adding a new layer on any subfloor period. Size and Type of Plywood for Your Shed Floor; Alternative Material Options for a Shed Floor . I have a 12' x 15' structure supported by 4 block walls with 2" x 10" joists. Some experts suggest that 15/32-inch plywood should be standard if the underlying floor joists are spaced 16 inches apart or less, but slightly thicker 3/4-inch plywood should be used for … You can use Sketchup to determine this or just remove your cargo floor mat and lay it on top of your plywood to see how your configuration will lay. 3/4 Inch Plywood Subfloor Preparation: Joist Installation. BC plywood is an exterior product intended for applications where the panel will be exposed to weather and moisture. It can be fastened to structural framing with nails or screws. A. Subfloor panels should conform to should conform to U.S. Install Luan plywood with staples to the subfloor plywood using 18mm or longer staples. I was thinking of tearing out the subfloor and installing 3/4 advantech, (instead of having 1/4 ply over 40 year old 1/2 ply subfloor) but removing certain areas of the subfloor is going to be tricky since there is a baseboard heater installed. I need your help. Subflooring is usually T&G, sheathing is not. The second letter indicates the backside of the plywood. Plywood tried hard to fend off OSB, but it could not compete well against OSB's lower cost. Sturd-I-Floor is a specialized engineered wood structural panel expressly designed for single-layer flooring installations on upper floors, where carpet will be laid directly over the subfloor. You should staple every 18mm around the edges and every 20mm inches at the centre of the plywood boarding. Plywood thicknesses for roofs start at 3/8” in areas with light load requirements on rafters at 16” centers. It can also be used under hardwood, laminate, and carpet, but this is much less common these days because subflooring is typically smooth enough for these materials, many of which are installed with a different type of underlayment or pad. “Top layer” plywood subfloor fastened to decking. These are popular and economical options for subflooring. A sheet of plywood sold as 5/8 inch is usually labelled as 19/32 and actually will measure at 9/16 or less. Our most economical plywood subfloor panels also are among the industry’s top performing in standard flooring. Correction – I checked some receipts and the new subfloor is 5/8 RTD Sheathing. What Size Plywood Do I Use for a Subfloor?. Glue is sprayed between each layer and the sheet is hot pressed. Many people want a high-quality and sturdy wooden subfloor that will be able to support weight for the decades to come. Most underlayment-approved plywood is at least 11/32 inches, the standard recommendation. No matter what the application is, you should be … Compare; Find My Store. For instance, a panel marked “Exterior/Grade B-C” would indicate it is for use in outside structural work and that it has a smooth, paintable B-grade surface on one side and a rougher C-grade surface on the other. This class of plywood is appropriate for use outside as well in areas of the building that may experience contact with water, such as bathrooms and kitchens. Once securely fixed, the plywood subfloor is ready for further preparation. © Copyright 2020 Hearst Communications, Inc. 2. Plywood makes up most of the walls and floors in attics and are sometimes found in laundry rooms, closets and other unfinished areas in the home. T-PLY T&G Subfloor CDX. BC floor buying public installs flooring over plywood subfloors (in wood frame homes) and concrete subfloors (basements and concrete buildings, like most apartment complexes above 6 stories. When installing a plywood subfloor on top of the slab at grade, the thickness is governed by how long the fasteners for the flooring will be. The second layer of plywood should be screwed to the first layer of plywood, … Installing plywood over 1x6 subfloor in preparation for engineered hardwood. The thickness of plywood panels in a subfloor is regulated by the spacing of the joists. The entry door and front wall sit on the subfloor. Avoid having a plywood seam on the second layer lining up with the subfloor plywood seams. Let’s take a look at what 3/4 inch pressure-treated CDX plywood is and why you want it. Securing plywood underlayment to timber sub-floor. Leave a Reply Cancel reply. This means you can have a 3/4 inch wood subfloor covered by 1/2 inch plywood, cement board, or approved gypsum fiber underlayment. This product combines subfloor and underlayment into a single powerful panel for This will be the biggest diy job I've ever done. The subfloor is the decking installed on top of flooring joists; the finished floor is then installed on top of the subfloor. Bar none. Production builders are usually the ones maximizing joist span and using less expensive subfloors. For 19/32- and 5/8-inch panels, joists should be 16 or 20 inches on center. Find top brands, compare products, read reviews & get the best deal for your plywood. How to Make a Wine Rack for a Small Cabinet, Making a Bathroom Vanity With Cabinet Grade Plywood, How to Glue Styrofoam Insulating Panels Together, Online Tips.org: Different Grades of Plywood, How to Install Tempered Hardboard Panels to Walls. OSB is more common now than plywood, less expensive. TN,Z802.0 4/13/00 9:56 AM Page 1 Based on advice received here, I had decided to go with CDX plywood. Conserve time, expenses and exertion on your next cabinetry or woodworking project with the PureBond Prefinished Maple Plywood Project Panel. Decking Boards; OSB; Reinforced Concrete Slab; Building a Stu Some professionals, however, will use plywood as thin as 1/4 inch for resilient flooring if the subfloor … The uncoupling membrane is adhered to the surface being tiled using a layer of thinset adhesive applied with a 1/4-inch V-notch trowel. Plywood allows for a much better build-up with lower undulations in the subfloor. It is often used for soffits, building stairs, as the support structure for cabinets and other built-ins, for shelving and for paneling. We will be floating a 3/4" plywood subfloor over our slab. The second floor of this house is built with 2 x 10 wood I-joists (joists that resemble steel I-beams and are 9.5 inches thick), 16″ on center and spanning 13.5 feet. The system is designed for use on all of the most commonly used subfloor materials—plywood, OSB, concrete and gypsum-based screed. Never lean panels against a wall for more than a short time because they will bend and warp. Plywood graded BC has a Grade B face and Grade C inner plies and backside. If you are installing subflooring over the slab, consult your hardwood manufacturer to determine if you should install a sleeper system or a floating, glue-down or nail subfloor. The second layer of plywood should be bc grade or better exposure 1(exterior glue)plywood. Order online with parcel shipping by December 11th.View details. The thicknesses are as follows: 7/16-, 15/32- and 1/2-inch-thick panels require joists spaced 16 inches on center; 19/32- and 5/8-inch-thick panels require joists spaced 20 inches on center. A plywood subfloor will raise the floor's height and prevent doors from opening smoothly, so be aware that you may need to make alterations to any doors that open into the room. If the subfloor cannot either be scraped, chiseled, or sanded flat then self leveling compound may be required. Make sure your 3/4" plywood subfloor is attached solid to the joists. Each ply making up a plywood panel is graded according to the number of knots, voids and other natural defects it has, with Grades of A, B, C, D and X. Grade A has virtually no defects and Grade X has lots of defects. Using 1/4" plywood instead of 1/4" cement board under tile makes no sense to me. Standard plywood can be used for subfloors, but it is more common to use tongue-and-groove sheets that interlock along the edges. There is 1/2" standard plywood for the subfloor material. Avoid having a plywood seam on the second layer lining up with the subfloor plywood seams. © Copyright 2020 Hearst Communications, Inc. The panels come in designs such as natural birch with grids, natural poplar with grids, and oriented strand board. Voluntary Product Standard PS1-95, Construction and Industrial Plywood and/or US Voluntary PS 2-04 and/or Canadian performance standard CAN/CSA 0325.0-92 Construction Sheathing. Dimensional consistency ensures minimal use of filling and smoothing products. If the subfloor is plywood no other ply is necessary; but you do need a flat surface for the Ditra. 1. You should staple every 18mm around the edges and every 20mm inches at the centre of the plywood boarding. For 19/32-inch-thick panels, the joists should be 20 inches on center. BC plywood is exceptionally strong and stiff. Features Subfloor Thinner than the Underlayment. Model #NA. But no matter the quality, all are backed by our enhanced packaging and industry-leading warranties. This method allows you to create your own subfloor using cheap wood materials. BCX Plywood for Subfloor. Since retiring from the news business in 2008, Kirchhoff takes care of a 12-acre rural Michigan lakefront property and applies his experience to his vegetable and flower gardens and home repair and renovation projects. Plytanium 23/32 Cat Ps1-09 Tongue and Groove Pine Subfloor, Application as 4 x 8. BC plywood is an exterior product intended for applications where the panel will be exposed to weather and moisture. Preparation. We work with Canadian Lumber Mills like Tolko, a family owned company based in British Columbia, to supply the best quality Plywood products to Builders, Renovators and Homeowners all over the Lower Mainland. Install subfloor plywood to support hardwood, linoleum, or tiled floors. CDX plywood should be a minimum of 7/16 inch thick. Make sure your 3/4" plywood subfloor is attached solid to the joists. Select a Store; Weekly Flyer; 1-888-985-6937; FAQs; Contact Us ; Sign In. *BC treated plywood makes great subfloors for kitchens, baths, and anywhere else that may get wet. Shop plywood at Lowe's Canada online store. For example, plywood flooring, which is predominately used perpendicular to floor joists (parallel to span), can benefit from a thicker face/back veneer to increase the stiffness and strength in the length of the sheet (the direction of use). Item #12249. Mark Morris started writing professionally in 1995. A final mark to check is the thickness of the plywood. Exposure 1 – Plywood suitable for uses not permantly exposed to the weather. After looking at the warped, bowed stacks of plywood at HD and Lowes, I called around to a few lumber yards to ask about their 3/4" CDX. 3/8 Cat Ps1-09 Square Structural Douglas Fir Sheathing, Application as 4 x 8. Size and Type of Plywood for Your Shed Floor. When Do I Need to Build a Floor? “Top layer” plywood subfloor fastened to decking. Thicknesses of 1/2 to 5/8 inch are common with rafters spaced at 24” centers. And they’re backed by the name builders have trusted for more than 50 years. Skip to content; Welcome to Lowe's. He is a voice, acting and film teacher. Oh, and be sure to use a good urethane construction adhesive on all the joists as you are applying the new plywood. 2. Plywood is usually used as subfloor today.. It is used in residential and commercial construction for new structures and for remodeling existing structures. If they're trying to save height, they should use a tile membrane. Shop By Department. The first letter indicates the front side of the plywood. along edges and 300 mm o.c. Sanded BC plywood is a utility panel used as exterior wall sheathing or as a base for attaching siding materials. Just screws, no glue is necessary. Morris specializes in many topics and has 15 years of professional carpentry experience. 0. All 1/2 to 3/8 engineered floor should have 1/4 birch plywood as a base then full glue spread to avoid popping. Top Choice Blondewood 3/4-in Whitewood Plywood, Application as 4 x 8. The last letter indicates the type of adhesive that is used to bind the layers of plywood together. The uncoupling membrane is adhered to the surface being tiled using a layer of thinset adhesive applied with a 1/4-inch V-notch trowel. Plywood re-engineered. If you are using a 1/4" floor tile, that will give you pretty much a 3/4" final thickness which generally works well … Others are looking for plywood to put inside of a shed or another outdoor building that will be exposed to the elements. He also teaches stage craft and lectures on playwriting for Oklahoma Christian University. What he said, but to be less specific.....sheathing and subfloor are generally the same stuff, CDX(1 side C/1 side D/exterior grade glue). Plywood underlayment … You have … This guide will explain the different uses of plywood, as well as popular plywood sheet sizes and its rating and grade system, so that you can choose the best plywood for your project. When used in flooring, plywood functions as the subfloor that supports hardwoods, tile and carpet floors. 0. For heavy load rated areas, 3/4-inch-thick plywood is recommended, regardless of rafter spacing. OSB and plywood subflooring panels. Oriented strand board, or OSB, is a wood structural panel that can also be used for flooring. This number is known as a span rating. Knots and other defects on the B-grade face have been filled in with veneer patches and the face sanded smooth for application of paint, varnish or other finish. These panels are more rigid than either traditional plywood or OSB. Every piece meets the highest grading standards for strength and appearance. Density/Consistency – A sheet of plywood subfloor is typically just five to seven plies thick. First, decide how you want your subfloor plywood 1 configured on the floor (see photos below for our configuration). Plywood, OSB or waferboard up to 20 mm thick(1) 63 51 63 150 mm o.c. These panels feature a built-in underlayment that allows the convenience of using only Sturd-I-Floor® under certain finish flooring, especially carpet and pad. Although BS8203 compliant plywood is manufactured to very strict dimensional tolerances, there’s still a need to fill joints and indentations where fixings have been applied to ensure a high-quality finished floor. One of the most common uses for plywood is for subflooring in new construction homes. It is made from shredded strands of wood pressed together with wax and a special adhesive, then hot pressed into a panel with up to 50 layers of strands. Quick Navigation. Conserve time, expenses and exertion on your next cabinetry or woodworking project with the PureBond Prefinished Maple Plywood Project Panel. For joist spans 16 inches or less, NWFA recommends minimum panel thickness of 5⁄8-inch plywood or 23⁄32-inch OSB; the building code requires 5⁄8-inch plywood or OSB. GET THEIR GIFTS BY DECEMBER 24TH! Newer construction has floor joists spaced at 16 inches on center. The bare minimum would be 3/8", and even that is difficult to work with. Stainable and paintable plywood are often used to make shelving, cabinets and furniture. Answer. T&G plywood subfloor is the best quality-certified plywood we have ever created. A UV-resistant medium gloss coats the face veneer on this 1/4 in. Herb Kirchhoff has more than three decades of hands-on experience as an avid garden hobbyist and home handyman. Panels will also bear the manufacturer’s name and trademarks. With a wide selection of Plywood products to choose from, you’ll find everything you need at POCO Building Supplies. Subfloor options. for pricing and availability. OSB can be used for subfloors, although it is not as common as CDX. Add screws/nails if needed. hi! Item #520360. This type of plywood won’t sag when used on a 12 inches joist structure. For 23/32-inch-thick panels, the joists should be at least 24 inches on center. CDX plywood is traditional wood plywood made from thin layers of lumber, known as veneers. Their tough structures can withstand pressure from foot traffic. Plywood can also be made into fencing materials, packaging … x 2 ft. x 2 ft. panel, protecting your carpentry creations from fading, scratching and chipping. It is rot resistant with knots replaced with football shaped plugs to give it a smooth moisture-resistant surface. Plywood underlayment is a thin plywood material that is most commonly used under resilient flooring materials, such as vinyl and linoleum sheets and tiles. If you are utilizing lightweight concrete, plywood or OSB subflooring panels will have to be installed. 187. From DryMax subfloor plywood panels to Blue Ribbon Sturd-I-Floor wood OSB subfloor boards, Georgia-Pacific has products for many subfloor applications. It will still warp and buckle if exposed to the elements for several months, so you aren't gaining anything by using it and exposing it.It is about the same price here as bc pine plywood… AC Plywood for Subfloor. Each joist resides on the block walls, no need for joist hangers. Having one piece perpendicular to the length of the van and two parallel seemed the most efficient and structurally favorable to us. Plywood is a structural wood product consisting of thin sheets of wood veneer known as plies. The heaviest rating is for 7/8-inch-thick panels, for which joists can be spaced 32 inches on center. Designed for use in single-layer floor construction beneath carpet and pad. Features and Benefits Plywood comes in different quality grades for different applications. The many types of plywood can differ in materials, number of layers, rating and grade. 1. It is generally available in 1/4-, 3/8-, 1/2- and 3/4-inch thicknesses. For example, a sheet of plywood with a D rating will have many open knots and splits that are not corrected with filler. Installing plywood over 1x6 subfloor in preparation for engineered hardwood. The bathroom floor gets wet. The joists are 15' long on 16" centers. Assuming the existing subfloor does not have excessive deflection in it, I would put down a 1/4" tile backerboard instead of plywood, and then put Ditra on top of that, and then tile. Screw & Glue Subfloor and Screw Underlayment. Crafted from Canadian plywood, these tongue-and-groove panels are known for exceptional value. Subfloor plywood is considered the more traditional method of subflooring. 3. Both OSB and plywood panels offer excellent strength and durability. AC Plywood for Subfloor. For 7/8-inch panels, joists can be up to 32 inches on center, and for 1 3/32- and 1 1/8-inch-thick panels, the joists can be spaced 48 inches on center. SPONSORS / 9 Responses to Ceramic Tiles on Wood Subfloors.