Commercial Garage Door Sizes and Cycle Ratings

Typical commercial opening sizes

Sizes vary by use, but these ranges cover most of what we service across North Metro Atlanta.

• Loading dock doors: 8' or 9' wide x 8' to 10' tall, matched to trailer heights
• Warehouse drive-through: 10' to 14' wide x 12' to 16' tall for box trucks and forklifts
• Service bays and auto shops: 10' x 10' or 12' x 12' with a lift in mind
• Self-storage: 5' to 10' wide light-duty coiling doors
• Fire station and equipment bays: 14' or wider, often 14' tall or more

Cycle ratings and high-cycle springs

One cycle is one open and one close. Residential springs are rated at 10,000 cycles — barely a year on a busy dock.

• Standard: 10,000 cycles — home use only
• 25,000 cycles — light commercial, a few dozen openings a day
• 50,000 to 100,000 cycles — active docks, warehouses and shops
• Bearings, drums, shafts and cables should be upgraded alongside the springs

Operators and safety devices

Commercial doors use trolley, jackshaft or hoist operators sized to door weight and duty, with a manual chain hoist backup on many installations. Safety edges (reversing edges), photo eyes, and monitored entrapment protection are required on power-operated commercial doors, and they are the parts most often found bypassed on doors we inspect.

Planning clearances in a working building

Sprinkler mains, lighting, ductwork, conveyors and lifts all compete for the ceiling. Rolling steel doors need headroom for the coil but no backroom; sectional doors need backroom but less headroom. We measure the opening plus the obstructions before recommending which format keeps your building working.

Frequently Asked Questions

Our services