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Questions tagged [plywood]

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30
votes
11answers
5k views

Should I tilt my DIY self-standing bookshelf backwards to prevent it falling down?

Context I intend to build a self-standing bookshelf using 18mm-thick, CNC-router-cut plywood. The bookshelf is made of nested planks, and entirely fits a 35cm-deep recess in my wall. Following ...
17
votes
10answers
44k 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 ...
15
votes
2answers
44k views

Can you rout plywood?

I have some applewood 13 ply 3/4" plywood that I'm using for a desk top. I was wondering if I took a router to the edges if it would turnout ok.
11
votes
3answers
28k 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 ...
9
votes
2answers
56k views

What is the ideal distance between supports of a shelf?

I've got 122x25x1cm and 61x25x1cm plywood boards that I want to use to make shelves for books and tools. I'll use 2 supports for each size of board and I'd like to know how far apart they should be. ...
9
votes
4answers
2k views

Is 3/4“ OSB a better soundproofing material than 5/8” drywall?

Assuming the construction was done properly, would 3/4" OSB (oriented strand board, it's like a particle board but better) a better soundproofing material than 5/8" drywall? This OSB has an R-factor ...
7
votes
4answers
351 views

Repairing eroded plywood window casing

The interior side casing of my window has been scratched/chewed away a bit, destroying the paint and outer two layers of plywood: What's the best way to repair this? PS the source of the problem ...
7
votes
5answers
31k 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 ...
7
votes
2answers
14k views

How can I plane the edges of plywood?

I'm working on an 8ft x 12ft climbing wall. I have 3/4 inch ACX plywood attached to a frame. Since the frame isn't perfectly square, the plywood overlaps on the edges (up to about 1cm) so I need to ...
6
votes
12answers
53k 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 ...
6
votes
3answers
5k 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 ...
6
votes
2answers
13k views

How is installing roof sheathing horizontally stronger than vertically?

Prompted by a comment in this answer: What is better for a roof, plywood or OSB? Why is it stronger to install roof sheathing horizontally? Yes, it ties in more rafters, but in what manner is that ...
6
votes
3answers
2k views

Nail gun and curled nails

I've never owned or used pneumatic tools, but recently I thought it would make a good addition to my tools. I bought an 18ga nail gun and 2" 18ga nails. When I used it to nail together 1/2" plywood ...
6
votes
4answers
2k views

What type of plywood for shower bench?

I'm framing in a 40" x 16" shower bench and I plan on using 3/4" plywood. I plan on using granite to sit on top of the seat. I would like to know what kind of plywood I should use for the seat? ...
6
votes
2answers
8k views

What's the minimum reasonable thickness for subfloor in my attic?

I want to install 4x8 sheets of T&G plywood in my attic for extra storage room, but there are so many different thicknesses. There will be extremely minimal traffic on this floor as I will only ...
6
votes
1answer
13k views

How can I avoid bubbles when applying an enormous sticker to plywood?

I'm working on a very important beer pong project. The top of the table will consist of two pieces of plywood that have been sealed and decorated with a massive 4X5 custom vinyl sticker. So, the ...
5
votes
3answers
4k views

Are plywood dovetails a good solution to building something that needs to be dismantled?

Are hand cut, plywood dove tails feasible? Assuming you can get "good" plywood, i.e. not the brittle splinter-fest I've seen around, is dovetailing feasible? I'd like to avoid using glue for the ...
5
votes
4answers
24k 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 ...
5
votes
1answer
54k 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 ...
5
votes
2answers
8k views

Should I choose MDF or plywood for my false stair treads?

I'm looking to install false stair treads and risers on my basement stairs. Generally, we're talking about a kit like this: Which is installed with adhesive and finishing nails like this: The ...
4
votes
4answers
4k 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 ...
4
votes
4answers
11k 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 ...
4
votes
3answers
27k views

Plywood, MDF or Chipboard for painted bookshelves?

I am starting to plan some built-in bookshelves that will be painted with mat or eggshell paint. The fronts of the shelves and upright will be moulded maybe with a router or softwood mouldings ...
4
votes
4answers
13k views

What type of wall sheathing is on my house?

My house sheathing 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
4
votes
4answers
34k 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 ...
4
votes
2answers
1k views

Type of screw / fastener should one use to attach veneer covered particle board bookcases together?

I have 8 Ikea Billy bookcases and I would like to attach them together to make the seam betwen them as narrow as possible. What sort of screw or fastener is appropriate for particle board?
4
votes
3answers
5k views

How should I install a plywood subfloor that will be covered by granite tiles?

I am replacing my entryway floor and I have removed the old mud bed. I'm left with planks perpendicular to the joists. However the room is defined at a 45 degrees angle from the joists, so the planks ...
4
votes
1answer
547 views

Will spilling a little liquid (beer, say) on untreated plywood for very little time damage or warp it?

Okay, this one's a tad silly, but I really need to know: If plywood sheets are being used as a temporary surface, and have roughly 20 ounces of a liquid spilled on them, can you assume that no damage ...
4
votes
1answer
228 views

Is it OK to nail 1/2" plywood straight to the pocket-door box?

The guy I hired to frame for a new pocket-door, mounted the pocket-door box on the top (to a second-story joist) and on the bottom (toe-nailed to the floor). When I asked him to install some studs on ...
3
votes
4answers
48 views

Choice of processed lumber for large shelves

I am looking for recommendations to choose between a diverse spectrum of 3/4" thick plywood-y materials, such as MDF board (or similar) as well as stratified but sanded plywood. In this particular ...
3
votes
3answers
13k 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 am ...
3
votes
1answer
66 views

What lumber should be used for indoor stair stringers?

I have seen some books say to use laminated 1.5" plywood to build the stringers because they do not warp. Others say 2x12 stock works but I do not want to deal with warping over time. So, what do you ...
3
votes
1answer
9k views

How do I nail plywood to flat roof framing?

I am putting some 3/4 plywood on top of 2x6 framing joists on my flat garage roof. The framing is spaced 16oc. I figured that I place 4x8 plywood sheets in such way that their short edge will be ...
3
votes
3answers
765 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 ...
3
votes
1answer
2k views

What is the proper glue to use to bond two pieces of plywood together as a substrate for formica?

We are preparing a kitchen counter top for new formica. The original plywood is still intact but is rough, so we will glue 3/8" plywood on top of it for a smooth durable surface. What is the best ...
3
votes
1answer
1k views

“Top layer” plywood subfloor fastened to decking

I just tore out a ton of particle board subfloor that was previously used for carpeting. The entire house has decking (2x6 planks) running on a 45 degree angle over joists with 3/8" plywood over the ...
3
votes
1answer
13k 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. http://www.amazon.com/Pyle-PRJWM8-Universal-Telescoping-Adjustment/dp/...
3
votes
2answers
427 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 ...
3
votes
3answers
7k 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. ...
3
votes
3answers
91k views

Proper way to install double-layer of subfloor?

I am installing natural stone 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 ...
3
votes
2answers
2k views

What should I use to finish my plywood table top if I intend to leave the end-grain visible for a modern look?

The plywood that I'm using is 33mm baltic birch.
3
votes
1answer
2k views

How much sag on a roof is acceptable?

I have minor sagging of my roof plywood, 3/8" thick, placed on trusses 24" apart. Is there an amount of sag that is technically okay? I could not find anything on the APA website. I am not worried ...
3
votes
2answers
1k views

How to calculate dead/live load on this 2x4 structure

Here is my general plan. These will be built in the corner of a room and each bay will have a lag into the wall's 2x4 including one in the adjacent wall. The idea is to build these 2x4 frames and ...
3
votes
1answer
147 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 ...
3
votes
1answer
745 views

What grade of plywood should we use as subfloor under VCT tile?

What is the preferred grade of plywood we should use as a subfloor underneath commercial-grade Vinyl Composition Tile (VCT) tile (not vinyl peel & stick tile).
3
votes
1answer
4k views

Which cheap plywood are suitable for use as siding-and-sheathing?

I know there are plywoods that are intended for this purpose, with an attractive face and often cut grooves to make it look like board-and-batten or other traditional vertical sidings. T1-11 is a ...
2
votes
2answers
9k views

How to secure plywood wall panels with hidden fixings

We've got a new 3000 x 3000mm partition wall that we'd like to fix birch plywood panels to. The panel size would be 800 wide, 600 high and I'm trying to figure out how to best fix them to the stud ...
2
votes
2answers
5k views

How do I properly lay a tongue and groove plywood subfloor in a remodel?

When laying T&G plywood subfloors, do all of the edges need to be supported around the perimeter of the room? If so, I may need to add some sort of blocking in my project and I'm not sure of the ...
2
votes
2answers
70 views

Slide-out tray fence with only a drill

Building some slide out panels inside kitchen cabinets, with only a drill at my disposal. Bottom: I've selected drawer runners that mount to the bottom of the drawer, I'm thinking I use a slab of ...
2
votes
2answers
2k 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 ...