Before you purchase any shed, it�s important to make sure you follow the right steps in making sure that the ground is level. if your foundation is not level, your shed will eventually sink into the ground and more importantly, will waste your investment.. A firm, level base should be the starting point for any shed or garden building. without this the structure is likely to be assembled improperly - screw holes will not line up correctly, doors may not fit their doorways and the quality and service life of your shed could be greatly reduced.. The structure of a large garden shed is generally supported by individual concrete footers under the posts that bear the weight of building, but the floor area needs to be firm and level to.
If you can�t level the ground so that it is absolutely flat, don�t get too stressed. you can compensate for an uneven surface by excavating a deeper base for the shed and then putting in concrete and leveling it to create a flat surface.. How to level and install a shed foundation. a long-lasting shed will need a sturdy foundation to keep it level and protect it from moisture. follow these steps to build your shed foundation. attach post base brackets and treated 4 x 4 runners. step 6. build the floor frame with treated 2 x 4s and nails according to your shed's directions.. The 6 most popular shed foundations � reviewed. gravel is an easy solution for a shed base, and works well with small to medium sized storage sheds, particularly metal, plastic and fabric ones. pavers can be used to level up a shed and work quite well. they can be a cheap solution, especially when you have some lying around the yard..