Our Building In A Box Shops and Garages come standard with a 3' steel shop door, garage door opening, treated base plate, double top plate, engineered trusses 4' apart, 2x4 studs 2' apart, 1 1/2 screws and washers, roof purloins 2' apart, and all trim necessary. All of our metal and lumber is 95% pre-cut. All of our metal comes with a 40 year warranty.