subfloor

tldr: what's the wisest way to proceed with levelling this bathroom subfloor over years, after replacing gaskets, replacing the toilet, and using shims under the toilet, i finally began the subfloor replacement in the area beneath the toilet to resolve the toilet not sitting flush and water...

I'm remodeling an 8' x 5' half bath in a 3-level split where the bath is in the basement on concrete. The old floor was vinyl tile glued directly to the concrete. My plan is to place 1/8" wood subflooring and then the vinyl sheet over that. First question, is that recommended/necessary (to add...

Hi there, I've spent alot of time searching the forum and am more confused than when I started, so thought I'd ask directly. I plan on laying semi-flexible LVF on top of original pine plank (house is about 100 years old). The original floor is pretty stiff and in good shape except for one...

I need replace the subfloor underneath the toilet. How would I find out how thick the subfloor is or how many layers there are without ripping it out? The bathroom has vinyl sheet floor and the bathroom is slightly raised from the hallway. I went under the crawlspace to check the depth from the...

Hi, I'm building a clubhouse / shed with my son, and we're first time builders. It's an 8x12 room. We're about to put the subfloor on top of our joists, and I've heard that I should stagger the seams of the 3/4" plywood. For reference, the joists are running on the short side of the floor...

Hello everybody, I am in the middle of rebuilding my shower floor and I am happy I stumbled upon this site. You all are a helpful bunch. I have been a DIYer ever since I bought an apartment in New York City. There, in coop apartments, there is very little you are allowed to do (basically inside...

Hello everybody, I am in the middle of rebuilding my shower's floor because leaks damaged the subfloor (engineered wood). Please help me with how I can redo the subfloor without impacting the walls that surround the shower in three directions. I've removed the floor layers, including most of...

We have a house built in 1879 and our floor is the original hardwood floor made of heart pine with no subfloor under it - laid right on the beams. We have an unfinished basement underneath that is about 6 feet in height with our HVAC, boiler, etc. If the light is on underneath, you can see...

Hey all, I'm down to the joists in my master bathroom, ready to install fresh 3/4" Plywood Subfloor. When I ask friends their opinion on my flooring layers needed for tiling, I usually get one of the following (conflicting) answers: 1. Just put 1/2" Cement Board directly over your subfloor...

I'm replacing a subfloor in one room in our old house. The joist on one end of the room is flush with the wall and the subfloor goes right under the wall studs, so I can't easily extend my new subflooring far enough to reach the joist, and obviously having 14" of subfloor hanging out into space...

We recently moved into a new 3-story townhome 4 months ago and are under warranty. Two months ago we noticed a soft spot under the carpet in the hallway of our third floor. We pointed it out to the construction manager (the development is only about 65-70% complete) and he brought in the foreman...

Good afternoon all. Thank you to those whom took the time out to read my post. I have done much searching and I'm struggling to find a solid answer to a question I have about subfloors. To get you up to speed... I'm building a 14'x30' music room. My plan is to make it as sound proof as I can...

Hi all. I have a question about subfloor layout. I am converting my attic into a master suite and have finally finished the structural and joist reinforcement so am almost ready to install the subfloors (3/4" Advantech T&G). The floor plan has a bathroom (just shy of 11x11) and a larger...

Hey crew! I removed the floor of my upstairs bathroom down to diagonal wooden planks. (is this called the sub-floor?) Now, I bought 1/2" Hardiebacker and Hardiebacker screws, but internet searches show most people using Thinset to adhere hardiebacker to the floor. 2 Questions: 1. Most photos...

Hello, I'm in the middle of a bathroom remodel. During my demo I went ahead and tore out the subfloor and as I went to install OSB I noticed that it is going to slope about 1/2" across the 5' width of the bathroom. I'm wondering what options I have to fix this. I have 4 joists total, the...

I ordered 5/8" T&G Advantech panels for my subfloor (to go on top of the 1/2" ply that's already there) from the local lumber yard, they delivered them just now, I checked quick to make sure it was T&G and the right size, etc., and they left. It wasn't until after that I just picked up a...

Will cutting 3/4" T&G diagonal plank subfloor - which runs underneath the walls - flush with the wall using a toe-kick saw jeopardize the structural integrity of the exterior walls? I am remodeling my 20' x 24' kitchen/living room area, which is one big combined room with no partitions. The...

I'm planning out how to put in the subfloor for my unfinished basement. I would like to put carpet in. It's a newer home and has never had water issues, so I wouldn't say we're in a wet area, but I still want to follow best practices. My thoughts so far: - Install Platon (dimpled high-density...

Two rooms on the second floor of my home have creaky subfloor that has a lot of bounce in between joists. After pulling the carpet, we found vinyl tiles and under those, the subfloor is covered in black mastic or something similar with a very strong chemical smell that has remained for two...

Hi, I'm planning on removing some carpet and replacing it with 3/4" hardwood flooring. The manual says the minimum subfloor thickness should be 5/8", but I only have 1/2" plywood under the carpet. The floor joists are 24" OC. Can I get away with installing the hardwood as is, assuming the...