Before your metal structure or steel building arrives, you should ensure you have a clean and level installation site. If the building is going on concrete, the concrete slab should be free of any major cracks. We prefer the concrete slab to be at least 4-inches thick and at least 1.5-inches all the way around your structure.  If the building is going on ground or gravel, there should be no large holes. We recommend speaking with your city or township’s Building Department to find out if you will need a building permit for your structure. Most of our customers will require a permit.