Powers Construction Steel Site Shack /// Constructed with weathering corten steel that requires no painting and adopts a resilient, rust-colored (but not rusting) appearance, along with construction-grade lumber, the Site Shack can easily be transported to just about any location via flatbed truck, and it requires no plumbing or pre-made foundation. Though it has virtually no creature comforts, it has a small cold-rolled steel stove for heat and can be outfitted with a hidden steel door.