Notes

This is the most critical, and the heaviest, panel. Unlike the other panels, the interior studs are at 16 inch intervals instead of 24 inch intervals. Once you've put together the basic frame, square it and skin it with 5/8" plywood.

Set aside an extra pair of 96" studs to accompany the floor. These studs, applied in the field, will act as runners, providing extra stiffness and support.