For a shed floor that's strong, long-lasting and low to the ground, it's hard to beat concrete. Surprisingly, if you pour the slab yourself, the price is comparable to that of a wood platform. Read more about pouring your own concrete shed floor.
Pressure-treated lumber laid on a bed of gravel gives you a fast, easy foundation that will last for decades, fill the wood foundation with gravel and lay cement pavers, just like for a paver patio. A paver floor allows water to drain through