Home Depot Garage Door Extension Springs. Garage door extension spring with 120 lbs duty rating and green color code?works with most all residential garage door. Garage door extension springs 48 x 66 for 11' high doors.
Extension springs are located adjacent to the door. They expand and contract when the when a garage door is lowered or raised by a motor or by hand. Precision's fully stocked vehicles carry a complete line of torsion and extension springs.
Garage door extension springs 53 x 72 for 12' high doors.
A door that feels too light may have improperly sized springs installed. Garage door springs alone cost $30 to $100 for a torsion spring and $20 to $50 for an extension spring. A door that feels too light may have improperly sized springs installed. The picture below shows the wide range of springs you can buy.
