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
After this, you need to remove the floor covering on the damaged subfloor area. For this to be possible, you will need to use a grout remover and use it to score the grout. You may also need a pry bar, putty knife, as well as hammer in lifting the tiles off.