I am making a soundproofing partition just inside a bathroom brick wall, not attached to it, and to save space, the partition is to be solid 18mm plywood with no battens. Wall area is only about 2.5 x
2.5metres. I want WBP plywood, but I can see softwood and hardwood ply at very different prices. I need the plywood to be very stiff since no battening is involved. It also needs to be very flat, and to not warp or bend, since it will be tiled on. I may also clad with a cement board before the tiles. What's the best ply to use ? Good suppliers ? Cheers, Simon.- posted
17 years ago