30X40X12 Storage Metal Building price includes: Double slope, gabled style, 1.12 roof pitch. Designed to codes for Tennessee and Kentucky. Design is for 15# snow load and 115 mph wind loads. All steel framing used in this pre-engineered metal building kit. Minimum 8" beams for rafter, columns, and roof and wall framing. Galvalume or zinc-aluminum coated, screw down roof panels ...