The door itself can be extremely heavy the starting weight of single doors is about 130 pounds and larger or heavier doors can weigh over 350 pounds.
Garage door weigh system.
In this video we show you an easy way to weigh a garage door without unwinding the torsion spring or loosening the extension springs.
Contemporary doors all glass double door can weigh over 400 pounds.
Most manufacturers offer a 30 000 cycle spring.
A standard 25 steel gauge 8 x 7 residential garage door from unique raynor amarr haas midland doorlink garaga northwest hormann delden clopay midamerica martin overhead c h i wayne dalton and windsor will weigh approximately 75 80 lbs and an insulated will garage door weigh approximatly 85 90 lbs.
One cycle is a single opening and closing sequence.
As a counterweight the springs provide balance and stability to the door opening system.
A one horsepower opener can easily lift approximately 400 pounds.
A 1 2 horsepower garage door opener can lift approximately 300 pounds which is the average weight of a two car steel door.
Garage door manufacturers typically produce garage doors fitted with torsion springs that provide a minimum of 10 000 to 15 000 cycles and are guaranteed for three to seven years.