How much weight can a garage door opener lift.
How much wight garage door.
Like many other motors garage door openers are rated with horsepower hp or horsepower similar hps for dc motors.
The average modern steel single car door weighs around 125 pounds while double car doors weigh about 200 pounds.
A standard 25 steel gauge 8 x 7 residential garage door from unique raynor amarr haas.
Garage door weight is determined by size material steel gauge thickness insulation and glass.
Therefore you need a pair of 210 pound springs even though your total door weight is 210 pounds.
Based on this rating a 1 2 hp opener be able to lift about 185 pounds and a 3 4 hp opener should be able to lift over 370 pounds.