Choosing the Correct Replacement Spring for an Enclosed Trailer Ramp Door

Updated 03/28/2024 | Published 03/26/2024

Question:

single or dual spring for an enclosed trailer ramp/door? My door is 130lbs. Per a reply, I suppose I am going with 120lbs spring. But single vs double spring??

asked by: Scott

Expert Reply:

I'd go with a double spring personally, Scott. These are typically going to be used on more heavy duty applications like your enclosed trailer with a pretty heavy door.

In order to get a proper replacement though, you'd need measure the width of your door and find out the weight of the door at it's heaviest point, which I'd imagine isn't more than 185 lbs, so something like # M394FR should work great but I recommend verifying yourself.

expert reply by: Bryce D

Scott

3/26/2024

ok, so when I put the trailer ramp/door down on a scale (which reads 130lbs) that is not the weight I am going off of for a door spring??

Bryce D.

3/28/2024

@Scott The door all the way down would be when it's at its heaviest, so the spring # M394FR would work fine.

Scott

3/26/2024

I ask my question bc another person wad responded w something similar and said they should buy a 120lbs spring door. But you're saying I should anticipate the actual weight of the door??

Bryce D.

3/28/2024

@Scott Correct, if the spring is underrated for the physical weight of the door then It wouldn't work.