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Your backyard shed, no matter how solid and sturdy, will usually require a proper foundation. Without one, it might not stay level, it will be more prone to moisture, and it could even sink into the ground.

You have several options for your shed’s foundation, including gravel, wood, concrete slab:

  • Gravel – gravel (or, crushed stone) pad shed foundations work well for small storage sheds.
  • Wood – pressure-treated wood frames are a durable, popular foundation option for sheds; the timber usually rests on cinder blocks or piers to keep the wood level and off the ground.
  • Concrete slab – a concrete slab foundation is best for larger sheds, and it’s the strongest of your options. If you plan to store tractors or heavy equipment, a concrete slab foundation is best.

Because a foundation is, for the most part, intended to be permanent, it’s important to plan properly and choose the best spot on your property to place the structure. Other things to consider about what type of foundation you choose—and where you choose to install—include drainage, wildlife, portability (as in, if you intend to move it at some point), and potential for future additions to your shed, such as plumbing or electrical.

A solid shed foundation is important for many practical reasons—protection of the structure and its contents as well as proper functioning of doors and windows. Choose the option that best suits your climate, your needs, and your budget.