The garage door weight is determined by factors like size, material, steel gauge, thickness, insulation and glass. The average modern steel single car door weighs around 125 pounds while double car doors weigh about 200 pounds. If your door is insulated, you can add about 10-15 pounds on the previous weights mentioned. Door weight is important when trying to figure out what torsion or extension springs are needed to counterbalance the door. Older doors made from wood, overlay doors and full vision glass doors weigh considerably more than the average basic steel overhead door.
