Plywood and OSB expand and contract with humidity and temperature much more than ceramic tile. Planning and patience along with these tips will help ensure that you install the quality of finished flooring you are looking for. Subfloor Cost Non-discounted retail pricing for: 23/32" tongue and groove OSB subfloor. That subfloor is fine for carpet, not so much for hardwood. DRIcore uses OSB panels. 4. Ceramic tile doesn’t expand/contract nearly as much. This layer goes between the carpet and the subfloor plywood. The bathroom floor gets wet. My question is, what type of wood should I use for a bathroom sub floor As the plywood or OSB expands, the ceramic won’t. Plywood, or even OSB, has its strength running with its length. Ive got OSB3 tg4 sub floor installed across the floors of my house. Kitchen cabinets or bathroom fixtures above can also add to the dead load. Model #712578. When exposed to moisture, though, OSB takes longer to dry, which could lead to water damage for your subflooring and even your finish floor. Your new layer of underlayment needs to be perpendicular to the joists just like the subfloor is. Item #308539. How to treat a plywood subfloor for urine before new carpet is installed. A subfloor is the layer at the very bottom of your shower pan. Over time, trapped moisture can cause the subfloor to rot, compromising the bathroom’s structural integrity. Oriented strand board, or OSB, is a wood structural panel that can also be used for flooring. OSB panels provide an excellent base for many types of finished flooring including ceramic tiles if careful attention to the construction and preparation of the subfloor is paid in order to avoid costly callbacks. Most every home with particle board subflooring will need to have their subfloors replaced eventually. Wrapping up the subfloor in the adjacent bathroom required an interesting puzzle piece to bridge the floor joists, to match the diagonal shiplap of the existing subfloor, and to accommodate a toilet drain. 2) Thickness: Usually manufactured in 4-by-8-foot sheets, plywood panels and OSB are acceptable subfloors for hardwood flooring as long as they are the proper thickness. ... OSB can be used for subfloors, although it is not as common as CDX. Please enter in your email address in the following format: you@domain.com Enter Email Address GO 3/4" Thick Solid Wood Flooring can be installed directly over 3/4" thick OSB subfloor. Do not 1/4 turn the underlayment direction from the subfloor. Before installing a tile floor, a subfloor and underlayment is necessary. Because it's made up of large wood chips adhered with resin, OSB offers a dense, smooth surface compared to plywood. OSB exposed during construction must be allowed to dry (especially before installing sensitive finish materials such as hardwood flooring). It's important to consider the environment a bathroom floor must hold up to. So sizing for a 20 lb. Also rotten wood will flex a lot and this will crack all the joints, and tear silicone caulk in the corners. Subfloors are an important subject in the mobile home world. It's also very slightly flexible and says it is a good patcher to fill low spots for vinyl flooring (laminate should work even better then). Plywood and OSB subfloors over joists are most common in newer homes and new construction, typically in homes with basements or crawlspaces. If the subfloor is 5/8 or 3/4 you can probably apply tile directly to it with no problem. DRIcore can make premade subfloor application more efficient. But, there are certain tricks to doing it. It is a good idea to put half inch plywood underlay to strengthen the floor before using modified thin set to put the tile directly on wood. Get $5 off when you sign up for emails with savings and tips. Chad completed the subfloor repair by “nailing it off” and sealing the gaps at the pipe. You need to go over that subfloor and screw down any and all areas that are loose or squeek while walking over the subfloor. Oriented strand board (OSB) is another popular subfloor material. Edge Gold includes patented Down Pore ® grooves that help shed standing water and a proprietary edge seal to reduce edge swell. Ill be installing three bathrooms and one utility. If the subfloor is in good shape you can get away with 1/4 inch plywood but more then likely use 3/8" plywood as the underlayment for your engineered wood floor. Subflooring can last a very long time. Is that a sign of a newly acquired self-build abnormality? ) Project Overview: Uneven OSB Subfloor. The coach demonstrates how to install a 3 8 plywood subfloor in a bathroom. Each span is approximately 14 feet. Rated 5 out of 5 by BobbyDee from Easy install and worth the increase in comfort Glad … Always store floor panels under cover. When reading the BBA certificate for the OSB subfloor (did I really do that? Because most old homes only use 1/2 plywood or OSB. Not letting a subfloor dry. Overflowing toilets, bathtubs and sinks in bathrooms can cause water to seep underneath tiles and saturate the subfloor. Older homes may have boards laid diagonally across the floor joists. Get fair costs for your SPECIFIC project requirements. DryGuard Enhanced 23/32 CAT PS2-10 Tongue and Groove OSB Subfloor, Application as 4 x 8. Insulated OSB Subfloor Panel - 23.5" x 23.5" is rated 4.3 out of 5 by 16. This is a good choice when your basement has a low ceiling. The subfloor beneath our first floor is 5/8″ oriented strand board (OSB) laid over 2 x 10 joists that are spaced 16 inches on-center (o.c.). The joists run from the front of the house to a steel I-beam in the middle of the house, and then from that I-beam to the back wall. Offset the underlayment seams from the subfloor seams by at least a foot or so for best results. If your subfloor doesn t pass the flex test either because it s a bathroom floor and has sustained moisture damage or it s the wrong material you can and should replace the damaged section. 3. Looks like you have to really check the subfloor for rot. See typical tasks and time to repair a subfloor, along with per unit costs and material requirements. Installation usually consists of gluing and nailing the OSB sheets to the floor joists. This week in our Ask a Mobile Home Expert series, we are covering questions about mobile home subfloors. 16 inch on-center joist spacing with single layer OSB or plywood subfloor; 19.2 inch on-center joist spacing with single layer OSB or plywood subfloors; 24 inch on-center joist spacing with double layer OSB or plywood subfloors; 24 inch on-center joist spacing with single layer OSB or plywood subfloors; Each configuration has specific guidance for: OSB Subflooring looks like, and is, a bunch of wood chips glued together. It’s designed to hold up to the pressure of foot traffic. Considering I'm planning to install 1/4" concrete backer-board over the sub-floor before tiling it again, is OSB okay as a sub-floor or does it have to be plywood?. Typical values are shown in the table below from lumber supplier Boise Cascade. Item #1043055. AdvanTech. When moisture becomes trapped in a subfloor, it can cause tiles to bubble and warp. Item #67970. I'm glad you were doing your research, and it sounds like you have a good grasp of the installation process. Most homes will consist of a standard subfloor constructed of running boards laid over floor joists, a plywood layer over the running boards, or if on a first floor, the subfloor can be a concrete slab. Regular seasonal humidity shifts are significant enough to make the average 10′ x 10′ wood subfloor floor expand or contract as much as 1/2″. With this option, you don’t have to deal with scratch or build-it-yourself subflooring. Note that some wood reacts and swells on contact with any liquid – an issue that might already exist as a … 1. DRIcore subfloor does not raise the floor as high as plywood. Compare; Find My Store. The subfloor is 23/32 T&G OSB, with ¼ inch lauan and sheet vinyl over top. OSB is fast to install and less expensive than real wood or plywood, making it the go-to material for modern subfloors. Flooring 1-1/8 CAT PS2-10 Tongue and Groove OSB Subfloor, Application as 4 x 8. A newer, easier, method is to lay down a "floating" subfloor made with special tongue-and-groove panels of OSB adhered to a base layer of plastic or rigid foam insulation. Without this additional layer of OSB plywood, the top floor would succumb to this pressure and have a shorter usable life. Edge Gold Scant Face Tongue and Groove 23/32 CAT PS2-10 Tongue and Groove OSB Subfloor, Application as 4 x 8. The subfloor thickness depends on the construction design, namely the distance between the floor joists, specified in the plans. When laying down carpet, it’s also a good idea to install an underlay. for pricing and availability. Quantity includes typical waste overage, material for repair and local delivery. In order for any tile to be placed on a bathroom floor, almost any manufacturer and tile installer will tell you to use tile backerboard over a plywood subfloor. See professionally prepared estimates for subfloor repair work. Most subflooring in wood frame construction today is either oriented strand board (OSB) or plywood. A full bathtub is very heavy, it needs a solid support. Screws spaced every 6 in. dead load or greater is necessary to prevent cracking in a tile floor. In mobile homes, for example, OSB isn’t the best choice for a subfloor since the compressed wood chips soak up water more easily than plywood. Although oriented strand board (OSB) has a commanding 75% market share in sheathing for new home construction compared to plywood’s 25%, it’s a much more competitive race in subflooring. If urine stains have set into the plywood subfloor, you can treat it in the same way you would treat any subfloor. 1) Suitable Wood Flooring: Any. 134 square feet: $79.10: $91.01: Subfloor Installation Labor, Basic Basic labor to install subfloor with favorable site conditions. 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