Ply
A term to denote the number of layers of roofing felt, veneer in plywood, or layers in built-up materials, in any finished piece of such material. One of a number of layers in a layered construction.
A term to denote the number of layers of roofing felt, veneer in plywood, or layers in built-up materials, in any finished piece of such material. One of a number of layers in a layered construction.