How Much Does a Garage Door Weigh? (Chart by Size and Material)
Every spring calculation starts with one number: door weight. Get it wrong by 15% and the door drifts up on its own or sags into the floor; the springs run outside their design load and die years early. Here's what doors actually weigh — and how to stop guessing.
Typical garage door weights
- 9×7 steel, non-insulated: roughly 75–100 lbs
- 9×7 steel, insulated (sandwich): roughly 100–130 lbs
- 16×7 steel, non-insulated: roughly 130–180 lbs
- 16×7 steel, insulated (sandwich): roughly 180–250 lbs
- 16×7 wood: 300 lbs and up — custom wood doors can pass 500
- Commercial sectional and rolling steel: all bets off — weight scales with gauge, slat profile, and hardware
The spread inside each line is the problem. Two 16×7 steel doors can differ by 70 lbs depending on gauge, insulation type, and glass. A weight chart gets you in the neighborhood; it doesn't get you a spring.
Why the ranges are so wide
Door weight per square foot runs from about 1.4 lbs (single-skin steel) through 1.5–2 lbs (vinyl-backed and sandwich insulated) to 4+ lbs for wood. Add windows, struts, an opener-reinforcement bracket, or a heavier bottom seal and the number moves again. That's why "it's a standard 16×7" is not a spring spec.
How to get a real number
Option 1 — weigh it. With the door closed, release the spring tension (or work on a door with broken springs — they're already at zero), then tip the door onto a bathroom scale under the center of the bottom section. An analog scale won't zero out like some digitals do under sustained load. This is the number suppliers want when you order springs.
Option 2 — estimate it properly. DoorBot's free Door Weight Estimator calculates weight from dimensions, material, panel construction, and insulation — the same inputs the manufacturers' tables use — and feeds the result straight into the spring sizer.
Sanity-check with a balance test
If the springs are intact, a door balance test tells you whether the current springs agree with the door's actual weight: disconnect the opener, lift the door halfway, and let go. A balanced door stays put. Drifts up — springs oversized. Falls — undersized or fatigued.
Bottom line: charts for quoting, scale or estimator for ordering. Your springs will thank you with their full cycle life.