How to choose the correct conventional ramp door spring

Updated 05/07/2026 | Published 05/05/2026

Products Featured in This Question

Conventional Ramp Door Spring for 7' Wide Enclosed Trailer - Dual Spring - 160-lb Capacity

(407)

$202.45

Question:

Im trying to find certain operator for a ramp door

asked by: James B

Expert Reply:

Happy to help James, thanks for reaching out!

Choosing the right M-3 ramp door spring system really comes down to matching your specific trailer and door.

The biggest factor is the weight of your ramp door. The spring system is designed to help lift and control the door, so it needs to be rated for the correct weight. If we don't, then door can feel too heavy or want to spring open too fast.

Here's what you want to look at:

1. The width of your ramp door/opening
2. The length of your current spring tube and cables
3. Whether you currently have a single or dual spring setup

We recommend going with a dual spring system if possible. It gives you smoother operation, better balance and more support compared to a single spring.

What do you usually haul; mowers, sleds, a car or something else?