Creating a exposed ceiling from free wooden pallets. (this ceiling is on a super adobe/earthbag house that uses continuous sandbags covered with cob.) do it yourself!. You can even use pallets to make gabled roofs. cut pallets into 16� sections, stack them flat, corbel each course a few inches and nail together with a nail gun to create a conventional looking gable roof. once covered with metal roofing, framed on the ends and trimmed out, no one could tell how it was built.. Plans to build pallet shed do it yourself storage double shed doors how to build a storage building 12x20 plans to build pallet shed easy to build sheds build garden shed into slope 12 by 12 shed foundation in most all cases you may use free or recycled materials and lumber lying surrounding..