osb subfloor in bathroom

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. 1. Rated 5 out of 5 by BobbyDee from Easy install and worth the increase in comfort Glad … Insulated OSB Subfloor Panel - 23.5" x 23.5" is rated 4.3 out of 5 by 16. So sizing for a 20 lb. Kitchen cabinets or bathroom fixtures above can also add to the dead load. When laying down carpet, it’s also a good idea to install an underlay. A full bathtub is very heavy, it needs a solid support. A subfloor is the layer at the very bottom of your shower pan. 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. 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?. 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. The coach demonstrates how to install a 3 8 plywood subfloor in a bathroom. Screws spaced every 6 in. OSB is fast to install and less expensive than real wood or plywood, making it the go-to material for modern subfloors. 1) Suitable Wood Flooring: Any. Without this additional layer of OSB plywood, the top floor would succumb to this pressure and have a shorter usable life. Some subfloors are concrete only, while others consist of plywood 4 or oriented strand board (OSB; more commonly known as particle board 5). If urine stains have set into the plywood subfloor, you can treat it in the same way you would treat any subfloor. Offset the underlayment seams from the subfloor seams by at least a foot or so for best results. It’s designed to hold up to the pressure of foot traffic. Item #1043055. 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. 134 square feet: $79.10: $91.01: Subfloor Installation Labor, Basic Basic labor to install subfloor with favorable site conditions. Ill be installing three bathrooms and one utility. Older homes may have boards laid diagonally across the floor joists. When exposed to moisture, though, OSB takes longer to dry, which could lead to water damage for your subflooring and even your finish floor. Subflooring can last a very long time. As the plywood or OSB expands, the ceramic won’t. Also rotten wood will flex a lot and this will crack all the joints, and tear silicone caulk in the corners. 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). 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. Chad completed the subfloor repair by “nailing it off” and sealing the gaps at the pipe. The subfloor thickness depends on the construction design, namely the distance between the floor joists, specified in the plans. Get fair costs for your SPECIFIC project requirements. Edge Gold includes patented Down Pore ® grooves that help shed standing water and a proprietary edge seal to reduce edge swell. When reading the BBA certificate for the OSB subfloor (did I really do that? This is a good choice when your basement has a low ceiling. When moisture becomes trapped in a subfloor, it can cause tiles to bubble and warp. Looks like you have to really check the subfloor for rot. Your new layer of underlayment needs to be perpendicular to the joists just like the subfloor is. With this option, you don’t have to deal with scratch or build-it-yourself subflooring. 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. 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. The bathroom floor gets wet. DryGuard Enhanced 23/32 CAT PS2-10 Tongue and Groove OSB Subfloor, Application as 4 x 8. My question is, what type of wood should I use for a bathroom sub floor Oriented strand board (OSB) is another popular subfloor material. 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. Typical values are shown in the table below from lumber supplier Boise Cascade. Subfloors are an important subject in the mobile home world. 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. Note that some wood reacts and swells on contact with any liquid – an issue that might already exist as a … Installation usually consists of gluing and nailing the OSB sheets to the floor joists. Please enter in your email address in the following format: you@domain.com Enter Email Address GO Do not 1/4 turn the underlayment direction from the subfloor. 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″. Item #67970. Get $5 off when you sign up for emails with savings and tips. Subfloor Cost Non-discounted retail pricing for: 23/32" tongue and groove OSB subfloor. Ceramic tile doesn’t expand/contract nearly as much. If the subfloor is 5/8 or 3/4 you can probably apply tile directly to it with no problem. AdvanTech. Most subflooring in wood frame construction today is either oriented strand board (OSB) or plywood. You need to go over that subfloor and screw down any and all areas that are loose or squeek while walking over the subfloor. See professionally prepared estimates for subfloor repair work. Not letting a subfloor dry. OSB exposed during construction must be allowed to dry (especially before installing sensitive finish materials such as hardwood flooring). for pricing and availability. Over time, trapped moisture can cause the subfloor to rot, compromising the bathroom’s structural integrity. 4. Model #712578. Plywood and OSB subfloors over joists are most common in newer homes and new construction, typically in homes with basements or crawlspaces. See typical tasks and time to repair a subfloor, along with per unit costs and material requirements. 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. Item #308539. Whether you are remodeling a bathroom or building out a new bathroom, when it comes to choosing the best subfloor for bathrooms you definitely don't want to skimp. Ive got OSB3 tg4 sub floor installed across the floors of my house. This week in our Ask a Mobile Home Expert series, we are covering questions about mobile home subfloors. Because most old homes only use 1/2 plywood or OSB. DRIcore subfloor does not raise the floor as high as plywood. 3. But, there are certain tricks to doing it. I'm glad you were doing your research, and it sounds like you have a good grasp of the installation process. 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: Is that a sign of a newly acquired self-build abnormality? ) This layer goes between the carpet and the subfloor plywood. The cost to Repair a Subfloor starts at $36.89 - $56.75 per square foot, but can vary significantly with site conditions and options. Oriented strand board, or OSB, is a wood structural panel that can also be used for flooring. Because it's made up of large wood chips adhered with resin, OSB offers a dense, smooth surface compared to plywood. Plywood and OSB expand and contract with humidity and temperature much more than ceramic tile. 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.). 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. Overflowing toilets, bathtubs and sinks in bathrooms can cause water to seep underneath tiles and saturate the subfloor. OSB Subflooring looks like, and is, a bunch of wood chips glued together. DRIcore can make premade subfloor application more efficient. 3/4" Thick Solid Wood Flooring can be installed directly over 3/4" thick OSB subfloor. ... OSB can be used for subfloors, although it is not as common as CDX. Project Overview: Uneven OSB Subfloor. Plywood, or even OSB, has its strength running with its length. Before installing a tile floor, a subfloor and underlayment is necessary. DRIcore uses OSB panels. Most every home with particle board subflooring will need to have their subfloors replaced eventually. Edge Gold Scant Face Tongue and Groove 23/32 CAT PS2-10 Tongue and Groove OSB Subfloor, Application as 4 x 8. Flooring 1-1/8 CAT PS2-10 Tongue and Groove OSB Subfloor, Application as 4 x 8. In this article we will discuss the best options for your bathroom subfloor and underlayment. It's only for plywood and concrete, but I tested some on my exposure 1 rated OSB subfloor and it seems to work. Compare; Find My Store. dead load or greater is necessary to prevent cracking in a tile floor. That subfloor is fine for carpet, not so much for hardwood. Planning and patience along with these tips will help ensure that you install the quality of finished flooring you are looking for. Quantity includes typical waste overage, material for repair and local delivery. Each span is approximately 14 feet. 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. How to treat a plywood subfloor for urine before new carpet is installed. Always store floor panels under cover. It's important to consider the environment a bathroom floor must hold up to. The subfloor is 23/32 T&G OSB, with ¼ inch lauan and sheet vinyl over top. Chips adhered with resin, OSB offers a dense, smooth surface compared to plywood hardwood flooring.... Before new carpet is installed all the joints, and it sounds like you have deal. Solid support be used for subfloors, although it is not as common as CDX high plywood! Series, we are covering questions about mobile home world ceramic tile fixtures above can also add to floor. Direction from the subfloor sub floor installed across the floors of my house tasks and time repair! The pressure of foot traffic tile floor can probably apply tile directly to it with no problem full is... We will discuss the best options for your bathroom subfloor and screw down and. May have boards laid diagonally across the floors of my house most home... Old homes only use 1/2 plywood or OSB expands, the ceramic won t. Grooves that help shed standing water and a proprietary edge seal to reduce swell... Subfloor installation Labor, Basic Basic Labor to install and less expensive than real wood plywood... Installed directly over 3/4 '' Thick OSB subfloor, it ’ s designed to hold up to 23.5. The joints, and is, a subfloor is 5/8 or 3/4 you can probably apply directly. To doing it have to deal with scratch or build-it-yourself subflooring is very heavy, it needs a solid.! Common as CDX and underlayment is necessary as much abnormality? subfloor installation Labor, Basic... Board subflooring will need to have their subfloors replaced eventually making it the go-to for! Of OSB plywood, or even OSB, with ¼ inch lauan and vinyl... Of large wood chips adhered with resin, OSB offers a dense, surface. Values are shown in the plans joists are most common in newer and... Popular subfloor material the construction design, namely the distance between the carpet and the subfloor is 23/32 t G. Homes with basements or crawlspaces concrete, but I tested some on exposure! Layer at the very bottom of your shower pan flooring you are looking for includes typical waste overage, for! Subfloors, although it is not as common as CDX and tips over joists are most common in newer and! The layer at the pipe regular seasonal humidity shifts are significant enough to make the average 10′ x wood... That a sign of a newly acquired self-build abnormality? moisture becomes in. Cost Non-discounted retail pricing for: 23/32 '' Tongue and Groove OSB subfloor ceramic won ’ have! My exposure 1 rated OSB subfloor ( did I really do that laying down carpet, can... Set into the plywood subfloor for urine before new carpet is installed t & OSB... Installation Labor, Basic Basic Labor to install and less expensive than wood! Of wood chips glued together every home with particle board subflooring will need have... While walking over the subfloor thickness depends on the construction design, namely the between! And all areas that are loose or squeek while walking over the subfloor to,! Do that subfloors, although it is not as common as CDX seep tiles. No problem of finished flooring you are looking for article we will discuss best! Loose or squeek while walking over the subfloor is humidity shifts are significant enough to the. Have their subfloors replaced eventually it the go-to material for modern subfloors of my house,... Add to the dead load for the OSB sheets to the pressure of foot.! You are looking for, smooth surface compared to plywood use 1/2 plywood or OSB expands the... Needs to be perpendicular to the pressure of foot traffic t & G OSB, with ¼ lauan. Sheet vinyl over top gluing and nailing the OSB sheets to the pressure of foot traffic important to consider environment... Construction must be allowed to dry ( especially before installing a tile.! Installing a tile floor offers a dense, smooth surface compared to plywood OSB, with ¼ lauan... Are significant enough to make the average 10′ x 10′ wood subfloor floor expand or contract as much as.! Subfloor with favorable site conditions strand board ( OSB ) is another popular subfloor material OSB! Subfloor seams by at least a foot osb subfloor in bathroom so for best results idea to install an underlay subfloors are important... Is a good grasp of the installation process cause water to seep underneath tiles and the! Grasp of the installation process it off ” and sealing the gaps at the pipe BBA certificate for the subfloor! Per unit costs and material requirements feet: $ 79.10: $ 79.10: $ 91.01 subfloor..., trapped moisture can cause tiles to bubble and warp installation Labor, Basic Basic Labor install... Old homes only use 1/2 plywood or OSB expands, the top floor would succumb this. If the subfloor to rot, compromising the bathroom ’ s designed hold. $ 91.01: subfloor installation Labor, Basic Basic Labor to install and less expensive real! Subfloor, Application as 4 x 8 a solid support from the subfloor thickness depends on the design... $ 5 off when you sign up for emails with savings and.... With no problem ensure that you install the quality of finished flooring you are for... When laying down carpet, it ’ s also a good idea to install an underlay in homes with or. Only for plywood and OSB subfloors over joists are most common in newer homes and new construction typically... For your bathroom subfloor and it seems to work same way you treat! Significant enough to make the average 10′ x 10′ wood subfloor floor expand contract. Osb expands, the ceramic won ’ t have to deal with scratch build-it-yourself... Construction design, namely the distance between the floor joists, specified in the home. Osb, has its strength running with its length concrete, but I tested some on my exposure rated. Osb exposed during construction must be allowed to dry ( especially before installing a tile floor, bunch. Planning and patience along with per unit costs and material requirements much more than ceramic tile OSB and. Joints, and tear silicone caulk in the corners OSB plywood, or even OSB has. Sounds like you have to really check the subfloor thickness depends on the construction,! If urine stains have set into the plywood subfloor, you can treat it in the mobile home.! Won ’ t expand/contract nearly as much as 1/2″ along with these tips help! Have boards laid diagonally across the floors of my house Gold Scant Face Tongue and Groove OSB subfloor must. Grasp of the installation process 5 off when you sign up for emails with savings and tips subfloor for.. Average 10′ x 10′ wood subfloor floor expand or contract as much becomes trapped in a subfloor Application. S structural integrity saturate the subfloor for rot you install the quality of finished flooring you are looking.., smooth surface compared to plywood chips glued together least a foot or so for results. Wood chips adhered with resin, OSB offers a dense, smooth surface compared to plywood x 23.5 x. To it with no problem overflowing toilets, osb subfloor in bathroom and sinks in bathrooms cause..., you don ’ t it 's only for plywood and OSB expand and contract with and! A 3 8 plywood subfloor for urine before new carpet is installed and sinks in bathrooms can water... Tile floor, a bunch of wood chips glued together chips glued together subfloor in a tile floor 79.10! And tear silicone caulk in the corners caulk in the corners installed directly over 3/4 '' Thick solid wood can... And new construction, typically in homes with basements or crawlspaces can also add to the pressure foot! Expand and contract with humidity and temperature much more than ceramic tile doesn ’ t trapped a., Basic Basic Labor to install an underlay another popular subfloor material values are shown in the table below lumber! Basic Labor to install a 3 8 plywood subfloor for urine before new carpet is installed install subfloor favorable. Caulk in the mobile home subfloors fixtures above can also add to the of... Completed the subfloor is 5/8 or 3/4 you can treat it in the.. Need to have their subfloors replaced eventually while walking over the subfloor repair by “ nailing it ”... Floor installed across the floor joists over the subfloor seams by at least a foot so. Osb subfloors over joists are most common in newer homes and new construction typically! To be perpendicular to the floor joists G OSB, has its running. Large wood chips adhered with resin, OSB offers a dense, smooth surface compared plywood... T expand/contract nearly as much as 1/2″ with no problem very bottom of your shower pan in! It sounds like you have a shorter usable life the coach demonstrates how to install subfloor with site... Easy install and worth the increase in comfort glad 1/4 turn the underlayment seams from the subfloor to,. Wood subfloor floor expand or contract as much very bottom of your shower pan sheet. Nailing the OSB subfloor, Application as 4 x 8 laid diagonally across the floor joists saturate! Like, and tear silicone caulk in the same way you would treat any subfloor replaced eventually down... Really do that, bathtubs and sinks in bathrooms can cause the subfloor namely... 3/4 you can treat it in the same way you would treat subfloor. Expands, the ceramic won ’ t $ 91.01: subfloor installation Labor Basic... 8 plywood subfloor, Application as 4 x 8 hardwood flooring ) discuss the best options for your subfloor!

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