Measuring Ramp Door Weight For Replacement Ramp Door Spring

Question

Question:

Hi. My ramp door is 67” wide and 79” long ,and attached to a piano hinge. With the door open and the end sitting on a scale, it registers 74 lbs. I guess then the total weight of the door to be 150 lbs . Can I use the single 120 lb spring ?

asked by: Jeff H

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Expert Reply:

In order to properly weigh your door to figure out the correct spring you only need to find the weight when the ramp door is down. Assuming you weighed your door without spring assist, you can use the 74 lb measurement. Typically, you use a scale and place a block of wood or something similar on the scale and rest your ramp on the block to get this measurement.

You do not need to know or estimate the total weight of the door to choose a replacement spring. Based on the weight and the door width of 67" you will have no problem using the Conventional Ramp Door Spring for 6' Wide Enclosed Trailer - Single Spring - 120-lb Capacity # 362SA6.

expert reply by: Robin H

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Answer 1

The Conventional Ramp Door Spring for 6' Wide Enclosed Trailer part #362SA6 is designed for 38" to 69" wide trailer doors so this is what you'll want to use. The bar will actually be trimmed to fit your exact width.

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Answer 2

I think I have a solution for you in the Global Link RV Entry Door Locking Latch Kit, #295-000021 for white or, #295-000019 for black. This latch kit measures 3.47" wide x 4.28" tall, fits doors that are 1-1/4" to 1-1/2" thick,…

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Answer 3

I reached out to the manufacturer, who told me the cable was 135 inches long for the Conventional Ramp Door Spring for 5' Wide Enclosed Trailer #362SA5. What you will do is measure from the top of your door down to the bottom of the door and if…

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Answer 4

Trailer ramp door springs are generally chosen based on the inside width of the trailer where it will be installed. Also, ramp door springs such as #362SA6 can be trimmed down some if the length is too much for the trailer. This is the shortest…

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Answer 5

The second speed is going to be like a "granny low" gear that is easier to crank but requires a lot more turns to get it to move. The single speed jacks would have the higher speed of a 2 speed jack.

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Answer 6

The spring with the black cable drum should always be mounted to your LEFT, standing on the inside of the trailer looking out. This is very important for proper operation. Dual spring systems, like #ERS160D96, have a red-coned and a black-coned…

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Answer 7

Normally the trailer ramp springs like the #362SA5 attach to the inside of the top of a trailer door like the picture I attached shows. In the picture you can also see how it attaches to the ramp as well.

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Answer 8

For a 6' wide trailer we have the 120lb capacity #362SA6 and 80lb capacity #M364FR ramp door springs from M-3. Both of these options can be shortened by sliding the mounting bracket down and cutting the tube to fit your trailer. The #362SA6 fits…

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Answer 9

Hey David, I am not totally sure which two springs you are comparing but just because a dual spring torsion ramp door spring like the part #ERS160D96 has two springs doesn't always mean it has more capacity than a single spring. The springs can…

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Measuring Ramp Door Weight For Replacement Ramp Door Spring

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