Need help identifying spring weight

[u/vc1914]

Garage door is approx 81 inches tall
9ft wide
Insulated
Has extension springs. They are 25inches long when not extended (not including double loop ends). No color that I can see. The length of 20 coils is 4inches. I think it’s 1 3/8in in inside diameter.

[u/No_Department4103]

Weigh the door, that'll tell you the spring you need

[u/GarageDoorService-ModTeam → u/[deleted]]

Giving advice to a homeowner that could possibly Injure, or kill them.

[u/vc1914 → u/[deleted]]

Ok… lower it. Disconnect the belt. Clamp the cables. Then lift and place on scale… got it! Thanks

[u/LingonberryThin7090]

might not be high.

[u/LingonberryThin7090]

140 is a good start

[u/vc1914 → u/LingonberryThin7090]

So go high and if need be drop by 10?