Step 1 – First step to building the walls is to pour a footing. A typical footing is 16” wide x 8” deep. Set the concrete forms for pouring the footing. The forms must be set exactly square and the exact size of the home. Drain tile should also be laid at this time. 2x8 boards will work as forms (left).

Step 2 – Install ½” rebar and fill the footing forms with concrete and smooth (below left).

Step 3 – Construct the walls and set on the footing (below right)

Step 3 cont. – The walls are constructed of green treated 2x8’s one foot on center with ¾” green-treated plywood as sheathing on the outside. All wood is deep treated (.66) and normally special ordered that way.

So materials can easily be taken in and out of the basement, an opening is left in the wall by the ramp until the floor is poured (lower left).

Step 4 – Stub in the basement plumbing. Pex tubing for the heated floor could also be installed at this time (lower right).

Step 5 – Pour concrete footing pads down the middle of the home for the support posts.

Step 6 – Pour and screed smooth the basement floor (lower left).

Step 7 - Pour one side of the basement floor the first day, then the other the next day (lower left).

Overview of Adding a Basement | Installing the Support Beams