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
Basically, a subfloor is the material that the top flooring material, such as carpet, tile, or hardwood, is laid on, and when you understand this you can see why it is necessary for the subfloor installation to be done carefully and for the correct materials to be used.