Hot Dipped Galvanised and pre-painted base frame assembles to the exact base size of your shed. Assemble and lay onto a plastic sheet on level well compacted earth, attach the shed base rails to the frame, completely build the shed unit, then simply flood out the foundation kit with concrete for a dry, smooth floor. As an alternative to concrete, the frame can be secured to a hard standing of slabs or concrete, and then customers can obtain water resistant flooring components which can be mounted and screwed directly onto the top of the foundation framework.