Once I got two pieces of plywood on the rafters, I moved them around and removed my temporary platform. I laid out the shed to use standard widths of plywood on the walls, but since the roof is angled and will have 2" edges to cover the siding and trim, the 4'x8' boards were not long enough and I had to add a 7" strip along the bottom before attaching the 4'x8' boards. I stapled in the insulation from the top, so it would hang down and fill the space between rafters. Then, I got the bottom strip and two full sheets of plywood up before it got too dark to see what I was doing.