If you have a heavier door that weighs more than 150 pounds with one spring still wound you will need to use 2 scales and position them under the first row of hinges from each end of the garage door.
How much does wood garage door weigh.
Older doors made from wood overlay doors and full vision.
If your door is 210 pounds you would need a pair on for each side of the 210 pound white springs.
Garage door weight is determined by size material steel gauge thickness insulation and glass.
Door weight is important when trying to figure out what torsion or extension springs are needed to counterbalance the door.
To be able to raise and lower garage doors manually they are equipped with a counterweight system made of torsion or extension springs.
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.
The average modern steel single car door weighs around 125 pounds while double car doors weigh about 200 pounds.
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.