Per the federal regulations contained in 49 CFR Part 26, Electronic Code of Federal regulations, a DBE is a for-profit small business concern that is: 1  At least 51 percent owned by one or more individuals who are both socially and economically disadvantaged.
Use a piece of lumber as a smash block to protect the plywood tongue. Smash the additional pieces of plywood in place. Installing Plywood Subfloor: Leveling and Finishing
Subfloor Type. Your subfloor is under your floor covering (carpet, tile, hardwood, etc.). This will most likely be either a wood framed floor (ie. floor above another floor or above a basement) or a concrete slab (ie. basement or first floor not over a basement). If your warm floor is going over a wood framed floor, even if your SunTouch is going over backerboard, cement board or a bed of mortar, select Wood.