MiniBuilt requires a firm, well-drained foundation for guaranteeing the longevity of the structure. We recommend a pad 6” deep, with landscape fabric below, 3/4” clear crush rock (not road mulch), laser levelled and compacted. Low or soft areas of the pad will likely result in doors not operating properly. The pad should extend 1 foot beyond all sides of the structure. A 10’ x 12’ building requires a 12’ x 14’ pad. While some homeowners may choose to prepare the site themselves, larger structures require qualified contractors to prepare the site. MiniBuilt offers this service in the Lower Mainland.