You'll need to clear out the area and add concrete or another material, then build a wooden base. If you're going to use your shed for something like storing firewood, pallets could be used for ...
This is a fairly simple build if you have the shop tools, and if you only have hand tools available, is still quite doable. The blocks consist of square wooden blocks with holes drilled into them ...
[SS4H] built a prototype using 3D printed parts, but for the final version he created one with a wooden case and laser etched keys to add a bit of uniqueness to the build. He also open-sourced all ...