Summary: cut all the skids flooring plates studs and rafters to the lengths as stated above and cut the plywood wall panels from the plywood sheet to the pattern as shown on the diagram below Step two Fix the 8 floorboards 2 to the three under floor skids 1 with 3 galvanized nails Ensure the finished floor dimensions are 31 1 4 x 48 The three under floor skids
Image Dimensions: 170 x 290
Image originally found here.