What Size Plywood for an Attic Floor?. The decision regarding the thickness of plywood to use for the subfloor in the attic has a lot to do with how you intend to use the attic, and it also depends on the spacing of the ceiling joists. Oversizing is an unnecessary expense, but you don't want to fall through.
Any uninsulated area in your attic can reduce the effectiveness of the overall home insulation. Pull down attic stairs if left uninsulated can allow heat from you home's living space to escape. This is a guide about insulating hideaway stairs
Best Barns Belmont 12 ft. x 20 ft. Wood Storage Shed Kit-belmont_1220 - The Home Depot
Best Barns - Belmont 12 ft. x 20 ft. Wood Shed Kit without Floor - With its second floor loft, 7 ft. 4 in. wall height and 13 ft. 2 in. peak height it has enough room for extra shelving and a sleeping area if needed.