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0
votes
1answer
37 views

How to patch wood subfloor surrounded by gypsum/gypcrete?

I have a 1'x 2' of wood subfloor in a bathroom corner that is rotted as seen in the picture. It's 3/4" thick. Below it is around 22" of space and the neighbor downstair. I know that much, but I don't ...
1
vote
1answer
33 views

How to repair small area of damaged/loose plywood sheathe on roof?

I have a small section at a corner of my roof where the plywood has come lose and a gap has appeared. It is on a part of the roof that is not easy to see, and unfortunately some birds have started ...
2
votes
4answers
4k views

Is it OK to use 1/4“ concrete backer board over 1/2” plywood as a bathroom subfloor?

I just bought a house built in 1978 and I'm planning on putting tile in the bathrooms (currently linoleum). The fixtures are removed and the flooring under the linoleum is particle board. I think ...
3
votes
3answers
314 views

House sheating is not plywood. What's this material?

My house sheating is not a plywood - but some dark brown material. Click for larger view Does anyone know what that is? P.S. here's more higher quality images: pic1 pic2 pic3
2
votes
1answer
675 views

How long can pressure-treated plywood be left wet?

I built a 12'x20' shed foundation on the Oregon coast last Summer. It is 3/4" pressure-treated Doug Fir plywood over P-T framing. The plywood was very wet when purchased and installed wet like most PT ...
5
votes
1answer
22k views

How to properly install tongue and groove plywood subfloor?

I'm doing a remodel and can't seem to find the proper method for installing the tongue and groove plywood subfloor over joists. I mean, I think I pretty much understand how to do it but there are a ...
3
votes
1answer
49 views

Drywall mudding plywood to emulate drywall

I have a need (long story) to use a long strip of 3/8" plywood under a door casing vertical piece and I plan for it to be slightly wider than the casing. It is joining old lathe and plaster and, for a ...
0
votes
2answers
153 views

How to repair rotten plywood board under vinyl bay/bow window?

This vinyl bow window was installed about 15-20 years ago: Overall it looks and works OK, but the underside is wood and has severely rotted around the outer edges: Here's a detail of one corner. ...
1
vote
1answer
47 views

Hanging a heavy object with the help of a plywood beam (due to a mismatch with studs)

Two studs in my wall are 24" apart, but the mirror I'd like to hang has hooks that are 32" apart. I'm reluctant to use a hanging wire and shift the mirror a little to the left or to the right, simply ...
3
votes
1answer
77 views

Securing plywood underlayment to timber sub-floor

I am laying 12mm plywood on existing timber flooring (before laying Hardiebacker board & ceramic tiles). Apart from screwing the ply to the sub-floor, should I also use grab adhesive or thinset ...
1
vote
2answers
253 views

How can I seal this dryrot spot to prevent it from getting worse?

Our bathroom shower door leaks onto the outside floor and over time, this has caused a dry rot patch on the floor. It's not necessarily severe but there's some mild "give" and I want to prevent it ...
0
votes
2answers
80 views

Sealing OSB subfloor from moisture? Patching small gouges?

What are some methods that can be used to seal an OSB subfloor from moisture? And patch small gouges (quarter sized)? Background: Small Bathroom remodel. Tile came up with finger pressure, ...
1
vote
2answers
60 views

Proper Orientation for Plywood Subfloor under 3/4" Hardwood

I recently purchased a house in New Jersey and the 2nd floor was filled with old carpet that we wanted to replace with hardwood flooring. I ripped up the carpet only to find particle board under all ...
0
votes
2answers
60 views

How to make dish drainer board from plywood shelf

I'm making a shelf above my kitchen sink with intention of putting glasses there to dry off. How can I treat plywood surface to make it into drainer board? The sink and the shelf are inside oblique ...
6
votes
2answers
1k views

What is the lifespan of plywood as roof decking?

We have a 30 year old roof in New England, which we have begun to interview roofers for this spring/summer. The topic of plywood has come up and 2 have said we definitely need to replace the ...
2
votes
2answers
168 views

Can I use OSB or plywood instead of 1x6 boards to hang metal panels?

I'm going to be putting up two louvered panels that will hold plastic hanging bins (think akro-bin type). I won't be able to mount the panels on studs, so I'm trying to decide if I should mount ...
3
votes
0answers
53 views

Is Purebond the only formaldehyde-free plywood? [closed]

I have a few small projects need to use plywood. My concern is that most of plywoods contain formaldehyde. I heard Purebond is formaldehyde free. what are the pros and cons of Purebond? Is there any ...
10
votes
2answers
10k views

How can I improve traction on an outdoor plywood ramp?

I've got a shed in a very shady area. There's a plywood ramp from the ground (grass/dirt) to the shed door. When it rains, the ramp gets slippery. It stays slippery for a long time afterward, as it ...
4
votes
4answers
620 views

Remove tiles (and plywood underneath) around toilet without removing toilet

Is it possible to remove tiles and plywood from a bathroom floor around the toilet without removing it? If so, how? The floor is ceramic tiles over plywood over floorboards, in a 1st floor (one floor ...
5
votes
4answers
17k views

How can plywood edges be finished to conceal the plies?

My cabinet doors are tired and have many coats of ugly paint. Rather than strip all the paint off, I'm considering just chucking the old doors and making new ones. I like the plain style of just a ...
2
votes
1answer
131 views

Covering attic baffles with plywood instead of drywall

I have these newly spray foam insulated baffles with 2x6" rafters, and I would like to cover them directly with plywood (for aesthetic reasons) rather than drywall. Is that an issue with fire ...
0
votes
1answer
35 views

OSB vs plywood for window padding/shimming

I need to use 1/2" plywood or OSB on both vertical sides of my retrofitted window frame. I was wondering if there is any difference in OSB (cheaper) vs plywood (more pricey) for this application ...
2
votes
9answers
12k views

How to accurately cut plywood with unpowered hand tools?

As a beginner in woodworking I would like to build a simple box from plywood. The edges will be simply glued butt joints which means they need to be straight and smooth. When I use a hand saw I can't ...
2
votes
1answer
146 views

Looking to protect OSB through the winter

I've been building a small cabin in the mountains for the past year or so in my spare time and finally have a sub floor laid out and screwed down. I have no time frame as to when I get a roof over the ...
1
vote
3answers
28k views

Proper way to install double-layer of subfloor?

I am installing natural tile, so I've had to reinforce the joists a bit and I'm currently working on installing a new subfloor. The subfloor is 3/4" plywood with 1/2" plywood on top of it. The ...
1
vote
1answer
69 views

What leveling precautions should one take with plywood subfloor for engineered hardwood nail down installation?

I installed the nail down engineered hardwood downstairs and did an OK job as far as leveling the subfloor is concerned. I sanded a few high spots down and even used a planer on an especially stubborn ...
17
votes
10answers
28k views

What is better for a roof, plywood or OSB?

While watching the builders next door do their thing, I became curious with their technique to install plywood on edges neighboring the next townhouse, and OSB for the rest (which for these narrow ...
0
votes
1answer
85 views

How much weight will 1/8" plywood sustain for compression?

Plywood would be laying horizontally and be cut 8' x 8". Assuming fairly uniform load, with plates the full top and bottom length of it, is there a compression at which the plywood will fail? I'm ...
0
votes
1answer
32 views

Using extra plywood as stringer for window boards?

Trying to size out some window boards for a hurricane. It's actually two questions but the stringer is the main one. I have a section of windows that is roughly 14' x 4'6". Given a sheet of plywood ...
0
votes
2answers
171 views

How can I minimise damage to a moldy patch of plywood?

I removed a waterproof camping bag in my student appartment today that's been filled with stuff to find that it has left a moldy spot on the untreated plywood it stood on. It's been parked up right ...
0
votes
1answer
120 views

Staining Plywood

I bought some plywood from Michael's (1/4" x 12" x 24") that I am going to woodburn some designs on to. However, I'd like to put some sort of finish on the plywood so it looks more refined/elegant and ...
3
votes
1answer
677 views

Plywood plate for mounting to wall

I would like to attach a projector arm to my drywall, but the mounting plate of the arm is a bit wider than a wall stud. ...
3
votes
2answers
231 views

Does it make sense to put quality (=pricy) underlayment over 3/4“ subfloor+1/2” extra plywood layer?

I have standard subfloor + 1/2" plywood on top, to correct for joists going different directions, so that all hardwood boards can be laid one direction for a clean look and avoid sagging where they ...
2
votes
4answers
510 views

How can I hang a plywood sign by the edge?

I am remaking my road sign using a 3/4 sheet of HDO. (Not MDO) It 5' wide by 3' tall, and double sided. The old one had brackets that bolted through the face but they will not fit with the vinyl sign ...
0
votes
3answers
171 views

Can I paint and polyurethane my plyfloor or does it have to be covered?

On a new build, our subfloor is going to be 18mm plyfloor. I like the idea of painting it with a whitewash and then coating it with polyurethane to keep it as our main floor, rather than covering it ...
2
votes
2answers
802 views

idea for mounting lcd tv on plywood

please suggest some ideas for mounting tv on plywood . I need to do clamp the lcd tv on the window. So i think it's better to cover the window using plywood first. After mount the tv on plywood . Is ...
0
votes
2answers
142 views

Can I use self-levelling cement over different levels of plywood?

I want to put large format tiles in a 10 x 10' bathroom over ditra. I have a solid flooring substrate but it is sloped, losing 1 3/8" over 8 feet. I am concerned about the weight of this much SLC (and ...
1
vote
2answers
369 views

What thickness, size, and quality plywood is required for an aviary floor?

12'L x 5'D x8'H size aviary needs what thickness plywood to hold human weight. Aviary floor is slightly elevated from the ground. Also, please specify how many floor joists it needs to hold the weight ...
1
vote
2answers
2k views

How to hang 1/4" Plywood

I have a 12" x 24" piece of plywood that is 1/4" thick and I'd like to hang it on the wall. I don't want to frame the piece or put any nails in it. Here are a couple of ideas I had: I was hoping ...
2
votes
1answer
124 views

Is it okay to put 3/4“ plywood over 1/2” wood subfloor?

I recently purchased a 2 level condo and took out existing hardwood floor on the 2nd floor. Some of the pieces of plywood is pretty old. I wanted to get an honest opinion on whether I should replace ...
0
votes
2answers
2k views

Do I need 3/4 inch plywood subfloor?

I'm going to install tiger wood 3/4 inch hardwood floors in my house. The manual says you need 3/4 inch CDX plywood subfloor. I have 1/2 CDX plywood subfloor. Is the extra 1/4 inch really needed? Some ...
2
votes
1answer
237 views

Can I put plywood over the drywall on the common wall between my house and garage?

My garage is attached to the house. The wall that is common with the house is finished with drywall. Can I put plywood over the drywall?
1
vote
2answers
2k views

Mounting TV on Plywood over Window

I need to mount a TV over my window. It is a 70" TV and weighs 96 lbs. I was thinking of using the framing of the window, there are 2 studs that are 54" apart. I included a diagram of my idea but I ...
3
votes
3answers
336 views

Ramp for a tool shed

I need to build a ramp into a shed to roll carts in and out. It has to be removable. Door opening is 50", rise is 10" and I have 48" of space in front of the shed. Max weight on the ramp at one time ...
5
votes
5answers
11k views

Is there a way to remove the warp in plywood?

I just bought some 1/2" plywood from HD for a project, and the best piece I could find was still pretty warped. Is there a way to fix this? Currently, it's sitting flat on my garage floor with a sheet ...
1
vote
2answers
261 views

Is 1/2“ plywood sufficient in strength as a 40”x28" table top?

I'm looking to make a 40" by 28" table for a six year old. I would like to use 1/2" plywood for the top and for two shelving units attached below. Those shelving units will also serve as the front two ...
3
votes
3answers
2k views

Is it recommended that 1/8 thick plywood be used as underlayment?

Redoing bathroom floor. After removing tiles and underlayment and linoleum, the floor that's left is decrepit, uneven, wavy, has some old plumbing holes. It is not rotted though, the wood is sturdy. ...
4
votes
3answers
4k views

Can you use plywood as roofing?

I've seen buildings where plywood was used as both wall sheathing and siding. T-111 is commonly used this way, for example. Would it work to do the same thing on a roof? I assume it wouldn't last ...
0
votes
1answer
211 views

What screws for attaching 1/2“ ply to 3/4” ply?

I was using all-purpose screws (1 1/4") to attach my second layer of plywood to the under layer. The top layer does not get screwed into the floor joists. A lot of the screws just spin and don't sink ...
0
votes
1answer
1k views

Simple & Cheap dance floor instead of carpet

I'm having a large group over for a party. Since my living room is carpeted, I'm trying to think of clever ways to create a nicer dance floor than the carpet. One thought was two 8x4 pieces of plywood ...