What is a good product to seal a rough plywood floor in a shed?

Question

The floor is uneven and too poor a quality to sand. I don't know how to install vinyl sheeting and thought perhaps a paint like material would work.

Answer 1

Since it is just a shed you could do the floor in a polyurethane floor varnish. It is amber but transparent and will still show the rough grain of the plywood but it will be smooth for your feet.

Answer 2

don't know the size of the shed...but if it is OSB you have for the flooring. I'm assuming the seams are swelling,causing the unevenest. And vinyl..as in linoleum?? Will only cover a more serious problem. So no...that's not the way to go. There's a moisture problem. Need to fix that first, or anything you do will be redundant.
If it were my shed...of there was a moisture ordeal...I'd rip up the old floor, make sure the floor joist were ok. Then lay down 3/4" tongue and groove plywood...and lay a layer of visqueen 6mm ( plastic poly...) on the ground underneath the shed. This will keep the moisture from rising up to the dry wood above.

Answer 3

The easiest way to do this is go buy some 1/4" Luan plywood. They have it and any home store. Screw it down. It will make a smooth floor and its moisture resistant. Then buy some 12x12 self stick floor tiles and put them down. Anyone that works in flooring will be able to help.

Answer 4

It's a shed there's moisture everywhere. If you want to get rid of the moisture tear up the floor, put down visquene and insulation. Insulate the walls and eves and don't forget to put vents in the eves. You can go through all of that (I wouldn't), or just put down a layer of 3/4 inch tongue and groove TREATED plywood ontop of existing plywood and that will take care of your problem. Don't forget to use galvanized nails or ceramic screws

Answer 5

The most important thing isn't what you put on top but what is under the plywood.

It will do you no good to seal the top if there is no vapor barrier under it.

The moisture will work it's way up & any thing you put on top will just flake off before long.

With a good vapor barrier all most any thing you put on will work.

If it is some thing that soaks in well that would be best.

Answer 6

If the floor is too poor a quality to sand, I wouldn't reccomend putting poly on it. The right way to do the job would be to rip it out and put in new plywood. The quick way to do it would be to use Kilz primer, then paint it with garage floor paint...I'm sure you've seen it, it comes with little flecks that you spread over the surface for traction after you are done painting. You may want to fill some of the bigger knots and holes with thin-set mortar before you Kilz, depends on how uneven it is. Anything over about a quarter of an inch and bigger than a dime should be filled.

Good luck.

Answer 7

OK you might think I'm nuts but I did this and it work out better than I hoped. I took the crappy wood floor and cut it out with a chain saw and a saw-zaw. I had the framing so then I mixed concrete poured it right inside made it as level as I wanted even made a small ramp it worked great. My shed floor measured 30ftx45ft no it wasn't small forget how much I used but I think it was 1 bag plus gravel-n-sand per sq yd I did do it in 2 week ends used 1x4 as a divider luck.

Answer 8

there is a product you can use that evens out unevan floors it is called self leveling thin set cures in about 3 hours and is like cement. it hardens like it

Answer 9

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Answer 10

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