Topline Steel Buildings specializes in metal building kits of all varieties including steel mini storage buildings. Large or small, corporate or private, Topline creates safe, smart metal storage units to meet the unique needs of each customer. Made of 100% American steel, our buildings are fire-resistant and meet or exceed all US and European building codes. Fully customizable, our designs allow you to tailor lighting, windows, doors, insulation, building color, and more. Our steel construction can be erected in a fraction of the time it takes to build with wood or brick, and our factory-direct building model saves you money. We offer a premium product and back our buildings with a 35 year limited warranty.