The simplest way for a DIYer to build a foundation for a shed is by creating what is known as an on-grade foundation. Unlike a foundation with poured concrete footings, an on-grade foundation is constructed by stacking solid concrete blocks directly on the ground.
Little or no digging is required to construct an on-grade foundation. Instead, vary the number of stacked blocks and use shims to level the top of each of the foundation pillars.
Once the on-grade foundation for the shed has been completed, the floor is framed up on the piers from pressure treated lumber and plywood. Metal anchors are driven into the ground under the shed and cables attached to the floor framing to hold the shed down in high winds.
Watch this video to find out more.