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. From DryMax subfloor plywood panels to Blue Ribbon Sturd-I-Floor wood OSB subfloor boards, Georgia-Pacific has products for many subfloor applications. 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. 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. For 23/32- and 3/4-inch panels, joists should be 24 inches on center. Designed for use in single-layer floor construction beneath carpet and pad. Features and Benefits T&G plywood subfloor is the best quality-certified plywood we have ever created. Some professionals, however, will use plywood as thin as 1/4 inch for resilient flooring if the subfloor … Correction – I checked some receipts and the new subfloor is 5/8 RTD Sheathing. Conserve time, expenses and exertion on your next cabinetry or woodworking project with the PureBond Prefinished Maple Plywood Project Panel. 1. 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. 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. With a wide selection of Plywood products to choose from, you’ll find everything you need at POCO Building Supplies. Answer. Density/Consistency – A sheet of plywood subfloor is typically just five to seven plies thick. All 1/2 to 3/8 engineered floor should have 1/4 birch plywood as a base then full glue spread to avoid popping. CDX plywood should be a minimum of 7/16 inch thick. Others are looking for plywood to put inside of a shed or another outdoor building that will be exposed to the elements. Plywood tried hard to fend off OSB, but it could not compete well against OSB's lower cost. This type of plywood won’t sag when used on a 12 inches joist structure. 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. Model #520360. 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… Production builders are usually the ones maximizing joist span and using less expensive subfloors. © Copyright 2020 Hearst Communications, Inc. OSB is more common now than plywood, less expensive. 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. TN,Z802.0 4/13/00 9:56 AM Page 1 Add screws/nails if needed. Their tough structures can withstand pressure from foot traffic. Dimensional consistency ensures minimal use of filling and smoothing products. This method allows you to create your own subfloor using cheap wood materials. 3. The system is designed for use on all of the most commonly used subfloor materials—plywood, OSB, concrete and gypsum-based screed. 0. T-PLY Plywood products are graded to CSA and PS1-09 standards with the APA performing third-party quality auditing and testing. The floor must also handle the weight of the tub, shower, tiles and other fixtures. BC plywood is exceptionally strong and stiff. This product combines subfloor and underlayment into a single powerful panel for hi! 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. You should staple every 18mm around the edges and every 20mm inches at the centre of the plywood boarding. Oriented strand board, or OSB, is a wood structural panel that can also be used for flooring. Make sure your 3/4" plywood subfloor is attached solid to the joists. 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. The second layer of plywood should be bc grade or better exposure 1(exterior glue)plywood. 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. Build up from the lowest elevation, using the products that allow for enough incremental elevation gain to get to within flatness tolerance. 3. Select a Store; Weekly Flyer; 1-888-985-6937; FAQs; Contact Us ; Sign In. Screw & Glue Subfloor and Screw Underlayment. It is especially suited as a subfloor for exterior vinyl covered decks and is endorsed by Duradek as the subfloor of choice. The 3/4 inch thick plywood is sturdy.It can support the weight of a person and heavier equipment without fatiguing over time. 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. First, decide how you want your subfloor plywood 1 configured on the floor (see photos below for our configuration). Item #12249. Plywood thicknesses for roofs start at 3/8” in areas with light load requirements on rafters at 16” centers. 1. And put in the nails every 8″. Each joist resides on the block walls, no need for joist hangers. Compare; Find My Store. 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. for pricing and availability. 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. Just screws, no glue is necessary. x 2 ft. x 2 ft. panel, protecting your carpentry creations from fading, scratching and chipping. Shop plywood at Lowe's Canada online store. 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. The second letter indicates the backside of the plywood. This will be the biggest diy job I've ever done. Find top brands, compare products, read reviews & get the best deal for your plywood. 1/4" plywood simply isn't stable enough to support a tile installation. Using 1/4" plywood instead of 1/4" cement board under tile makes no sense to me. Sanded BC plywood is a utility panel used as exterior wall sheathing or as a base for attaching siding materials. Features And they’re backed by the name builders have trusted for more than 50 years. 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. 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. Never lean panels against a wall for more than a short time because they will bend and warp. The last letter indicates the type of adhesive that is used to bind the layers of plywood together. Once securely fixed, the plywood subfloor is ready for further preparation. The subfloor is the decking installed on top of flooring joists; the finished floor is then installed on top of the subfloor. I need your help. Based on advice received here, I had decided to go with CDX plywood. Backed by Tolko, the name builders have trusted for 60 years. The thickness of plywood panels in a subfloor is regulated by the spacing of the joists. Size and Type of Plywood for Your Shed Floor. 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). Our most economical plywood subfloor panels also are among the industry’s top performing in standard flooring. 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. BC plywood is an exterior product intended for applications where the panel will be exposed to weather and moisture. for pricing and availability. The second layer of plywood should be screwed to the first layer of plywood, … But no matter the quality, all are backed by our enhanced packaging and industry-leading warranties. Installing plywood over 1x6 subfloor in preparation for engineered hardwood. “Top layer” plywood subfloor fastened to decking. 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 Item #520360. 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. 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. Decking Boards; OSB; Reinforced Concrete Slab; Building a Stu 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. 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. He also teaches stage craft and lectures on playwriting for Oklahoma Christian University. Using 18mm plywood Underlayment Installing 18mm Luan Plywood Underlayment for your vinyl or laminate flooring project. Subflooring is usually T&G, sheathing is not. 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 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. When used in flooring, plywood functions as the subfloor that supports hardwoods, tile and carpet floors. If the subfloor cannot either be scraped, chiseled, or sanded flat then self leveling compound may be required. 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. Bar none. “Top layer” plywood subfloor fastened to decking. The many types of plywood can differ in materials, number of layers, rating and grade. 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. Compare; Find My Store. Plywood panels sold in the United States are stamped with grade marks in a format specified in National Plywood Standard PS 1-83. 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. BC plywood is exceptionally strong and stiff. Is it ok to leave this as long as I use the 5/8" BC Exposure 1 or . Both OSB and plywood panels offer excellent strength and durability. Model #NA. Subfloor Thinner than the Underlayment. Morris specializes in many topics and has 15 years of professional carpentry experience. These are popular and economical options for subflooring. 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. 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. 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. Conserve time, expenses and exertion on your next cabinetry or woodworking project with the PureBond Prefinished Maple Plywood Project Panel. Standard plywood can be used for subfloors, but it is more common to use tongue-and-groove sheets that interlock along the edges. Subfloor Thinner than the Underlayment. 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 It is used in residential and commercial construction for new structures and for remodeling existing structures. Thicknesses of 1/2 to 5/8 inch are common with rafters spaced at 24” centers. 0. Always check the maximum floor and roof spans for plywood before making a final plywood selection for these applications. Herb Kirchhoff has more than three decades of hands-on experience as an avid garden hobbyist and home handyman. A sheet of plywood sold as 5/8 inch is usually labelled as 19/32 and actually will measure at 9/16 or less. Shop By Department. Sturd-I-Floor® is an APA designation that is a combination subfloor-underlayment produced from OSB or plywood. 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. along edges and 300 mm o.c. If you are utilizing lightweight concrete, plywood or OSB subflooring panels will have to be installed. Panels classified as Exposure 1 are intended to resist the effects of moisture on structural perform- If you are using a 1/4" floor tile, that will give you pretty much a 3/4" final thickness which generally works well … It can be fastened to structural framing with nails or screws. You should staple every 18mm around the edges and every 20mm inches at the centre of the plywood boarding. Oh, and be sure to use a good urethane construction adhesive on all the joists as you are applying the new plywood. Plywood underlayment … Order online with parcel shipping by December 11th.View details. Quick Navigation. 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 … Top Choice Blondewood 3/4-in Whitewood Plywood, Application as 4 x 8. For heavy load rated areas, 3/4-inch-thick plywood is recommended, regardless of rafter spacing. Glue is sprayed between each layer and the sheet is hot pressed. It is often used for soffits, building stairs, as the support structure for cabinets and other built-ins, for shelving and for paneling. 2. OSB and plywood subflooring panels. Plywood re-engineered. Skip to content; Welcome to Lowe's. 3/4 Inch Plywood Subfloor Preparation: Joist Installation. 3/8 Cat Ps1-09 Square Structural Douglas Fir Sheathing, Application as 4 x 8. That usually means the underlayment and the subfloor also get wet. 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. Tile floors are especially heavy with layers of cement board, mortar, tile or stone and grout. For 19/32- and 5/8-inch panels, joists should be 16 or 20 inches on center. Securing plywood underlayment to timber sub-floor. 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. AC Plywood for Subfloor. This number is known as a span rating. When Do I Need to Build a Floor? 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. 106. This evolved plywood may claim an overall advantage over OSB, since plywood is a stiffer, longer-lasting subfloor option. If they're trying to save height, they should use a tile membrane. Having one piece perpendicular to the length of the van and two parallel seemed the most efficient and structurally favorable to us. Item #12181 Model #185109 It is rot resistant with knots replaced with football shaped plugs to give it a smooth moisture-resistant surface. Install Luan plywood with staples to the subfloor plywood using 18mm or longer staples. Just screws, no glue is necessary. These panels are more rigid than either traditional plywood or OSB. The recommended thickness of the plywood subfloor is governed by the spacing of the joists. This means you can have a 3/4 inch wood subfloor covered by 1/2 inch plywood, cement board, or approved gypsum fiber underlayment. Plywood is a necessity in many DIY and construction projects, but not every type of plywood works for every project. You have … Underlayment bridges the large imperfections of subflooring, as a prep for finish flooring.