How To Determine Weight Of Sring For Garage Door

1 divide the total spring s ippt by the cable drum multiplier 2 multiply the spring ippt by the number of turns and then divide by the hi moment arm high lift.

How to determine weight of sring for garage door.

Measure the distance from the top of the closed door to the bottom of the horizontal track. When it comes to extension springs the purpose of the color coding system is to help the company performing your garage door service determine the lifting power of the springs. When using two scales add the weights together for the total door weight. Garage door spring size.

Door weights 150lbs and under will be shipped with 1 high cycle life torsion spring. Torsion springs and garage door weight. Weighing your garage door is the best possible way to determine the proper springs needed for the door. We will use the corrispoding weight you ordered to customize the perfect spring s to balance your garage door.

Rules and formulas door weight. Once you know the total weight of your garage door using a bathroom scale for doors under 300 pounds you can use the chart below to see the color extension spring you need. The spring s individual measurements are also important they determine the spring s lift. Garage door weight is determined by size material steel gauge thickness insulation and glass.

Torsion springs need to provide enough force to equal the weight of the door. This is sometimes referred to as the spring s lift power how much weight the torsion spring can lift. This is important because different doors weigh different amounts and you want springs with the appropriate lifting power for your particular door. It is purposed to help the professionals servicing your garage door to determine the weight and size of the spring.

Older doors made from wood overlay doors and full vision. Total door weight indicates the springs you will need for example if the door weighs 100 pounds you need two 100 pound springs one on each side. Springs that work for a standard height door won t work for an extra tall door because the springs will need to extend farther. The average modern steel single car door weighs around 125 pounds while double car doors weigh about 200 pounds.

If your door is 210 pounds you would need a pair on for each side of the 210 pound white springs.