• Polycarbonate Doors - no lock & key • 3' x 7' Single or Double hinge doors available • 4' x 8' Single or Double hinge doors available • Sliding Polycarbonate Doors • Slides open on tracks • Allows large opening to bring in Forklift or other vehicles • Sliding door kits included • Standard: 3' & 4' wide single & double doors available • Steel Doors • Solid white steel doors (view light window optional) • 3'6" x 6'8" standard doors • Roll-Up doors (manual or automatic) • 8x8, 8x10, or 10x10 standard sizes Note: Door sizes can be customized within reason!