The shed 'skin' is pallet tops. they are very uniform in width, so the look nice stacked on top of each other horizontally. when we would get the the end of a row, we would measure carefully, then cut the last piece to the exact length needed. the left over bit from that board would be used to start the next row, just like hardwood floors. the. Sitting tree building wood pallet shed 8. building wood shed pallets plans large building wood shed pallets plans large 9. build shed out wood pallets quick build shed out wood pallets quick 10. plans build shed recycle pallet plans build shed recycle pallet 11. diy wooden pallet shed projects wood diy wooden pallet shed projects wood 12.. Pallet have been spacing in them that cause amazing air-circulation in the shed letting the wood dry early! pallets are made of hardwoods, it ensures the lasting stability of the entire shed and above all, retired pallets are free to grab also that is main reason behind that this pallet firewood shed has been done.