How to Weigh a Cargo Ramp Door for a Replacement Spring

Updated 08/08/2024 | Published 08/07/2024

Question:

What is the easiest way to weigh a cargo ramp door? One of my two springs broke.

asked by: Brian T

Expert Reply:

Your broken spring should be color coded to indict the weight rating of it. It'll be spray painted on the roller or the spring itself. I've listed the colors and their respective weights below;

White: 10/110/210 LBS

Green: 20/120/220 LBS

Yellow: 30/130/230 LBS

Blue: 40/140/240 LBS

Red: 50/150/250 LBS

Brown: 60/160/260 LBS

Orange: 70/170/270 LBS

Gold: 80/180/280 LBS

Light Blue: 90/190/290 LBS

Tan: 100/200/300 LBS

Or you can use a standard scale like one you'd weigh yourself on. You'll want to put the scale on the ground in the center of the landing path of the door edge. This will tell you how much of the door weight is on the ground when fully open.

Make sure when you select your door spring like item # M354FR you do not go with one that is rated for more weight than your door or you might run into issues of the door trying to close after you lower it.