Not if your going to finish the floor. Now if your going to repair a spot and cover it over there are many floor patch products and floor leveling products that you might consider. But for crack filling and refinishing work I'd recommend "Woodwise" filler.
Hope this helps.
John
P.S. Just realized you were asking about plywood. I'd probably still would check into a wood patch product. Any hardware store should be able to address this for you.
How much? what kind of plywood floor? Why do you need to do this??
If you want to raise a sagging floor, you can put a piece of plywood on the floor. You can then add new flooring over the piece of plywood.
I used plywood to build my sentence. That box might be made of plywood or solid wood. The treehouse has a plywood floor.
You would be better of removing the plywood floor completely - and tiling over the original surface.
I need the thickness dimension of 12 ply plywood for floor.
what is height of pot filler from the floor or from the range
You couldn't tile directly over a plywood sub-floor because over time, the wood will be expanding. There are products you can use in between the plywood and tiles to keep them in place such as cement backer board.
You will need 12.5 sheets of 4x8 plywood.
Lay plywood on top of floor joists. Specifically, what are you asking? BClear
about 3.50
I think Approximatly 6 sheets of 4x8 plywood
No, luan is a plywood and wood is naturally porous.