Steel, post frame building packages/kits consisting primarily of purlins, girts, roof trusses, roof steel panels, wall steel panels, joist hangers, nails, screws, staples, roofing ridge cap, roofing rake and corner, double angle base wall trim for sealing wall bottom, roof framing closure, wall framing closure, door framing closure, angle trim for eave behind guttering, flashing, front and rear end cap of roof, door and eave trim, skylight, closure strip for sealing top ends of roof panels, doors, windows, insulation, door tracks, trolleys for sliding door, splice collars for joining trolley tracks, track covers for trimming sliding doors, track end plug for sealing end of trolley track, door pull, door stopper, door cam latch and striker, door center latch, trolley support plate for attaching trolley to sliding door, verticals for rigidifying door edges, horizontal girts, bottoms for riding on bottom door guide, center guide and support beams, guide package consisting of bottom guide fixed to sliding door for sliding on bottom door guide affixed to the building, vertical mating closure strips for sealing door edge and door frame, door frame screws without washers, guttering, downspouts, elbow for downspout, guttering mounting brackets, gutter miter, mill outlet, gutter seal, pop rivets, clear silicone for sealing any joint in the building such as in guttering, low profile roof vent, gable vent, aggregate material composed of sand and cement, hole plug screws, side lap sealer strip for sealing roof panels, and small angle iron brackets