Subfloor Installation

All of the joists and blocking are done, so it's time for the subfloor.  The subfloor is 3/4-inch tongue-and-groove plywood. Each board weighs about 75 pounds, which makes them difficult to lift into place and to work with.

    Getting ready to install the first boards.

The plywood is nailed in place with a nail gun, but it's important to make sure that the nails are flush on the boards to make sure that the boards are tight against the joists. Subfloor adhesive is also used on the joists to ensure a good seal.  This locks the plywood in place, prevents moisture from getting between the plywood and joists, and helps prevents squeaking.

The main building is done (except for the bump-out that will be the bathroom).

  Putting down the first board in the master suite.

  Pounding in nails ...

After a full day's work, the subfloors on both buildings are done.  Good progress for one day.