2 x 4 frame construction; 8' high walls; 7' wide metal-panel overhead (garage style)door; 32" wide steel service door with window; single or double hung vinyl window on opposite wall from service door; vinyl siding; 6-12 sheathed roof finished with snap-lock metal roofing panels. Oh yeah...insulated w/drywall and a porta potti before we get poison ivy you-know-where.