Step 22: Paint the floor. Attach the walls.
Next I attached the walls. I screwed in through the base of the wall into the 2x2 subfloor. This created a really sturdy joint. I used some pieces of ply as braces to hold the walls up.
I temporarily braced each wall with a couple of spars across the top. The tiny registration holes I drilled through BOTH sheets of ply while they were still sandwiched were a HUGE help here to get things lined up.
Next step was to attach the inner skins. I line them up and glued and brad nailed to the spars.
Its starting to look like a trailer!!