Recommended Garage Door Spring for a 7' Wide Enclosed Trailer
Updated 02/02/2025 | Published 01/29/2025
Question:
I purchased a Spartan enclosed trailer. The trailer is 7foot wide and custom ordered 8foot tall interior height. It has a reinforced ramp door with an aluminum ramp extension made of 1/2inch plate. The factory put a single spring on the door. Being an ex commercial garage door technician of 10+ years I know its sprung incorrectly. Its so heavy you can barely pick it up, yet slams at the top from 3/4 closed. Can you suggest what dual spring and drum setup I need to make the tension more balanced through the whole motion? Thank you for your time. Rodney Earwood 4043745498 [email protected]
asked by: Rodney E
Expert Reply:
Hey Rodney! Congrats on your new trailer! If you door weighs 250 lbs or less the Conventional Ramp Door Spring for 8' Wide Enclosed Trailer item # CB250D96SHD will perfectly. You'll just need to trim the shaft down to fit your trailer's inner width. It can be trimmed down to 6-2/3'. I have no idea how heavy your door is but this is our highest capacity ramp door spring.
I have linked a review video below so you can see the functions of this spring demonstrated. What specific model trailer do you have?
Product Page this Question was Asked From
Conventional Ramp Door Spring for 8' Wide Enclosed Trailer - Dual Spring - 250-lb Capacity
- Trailer Ramp Springs
- Dual Ramp Spring
- Torsion Spring
- 150 Inch Cable
- 231 - 250 lbs
- Conventional Spring
- 6 Foot Wide Trailer
- 7 Foot Wide Trailer
- 8 Foot Wide Trailer
- 94 Inch Wide Spring
- M-3 and Associates
more information >
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Rodney
1/31/2025
Not sure the specific model trailer. I removed tension yesterday and placed the tailgate on a race car scale in the shop. The door attached to the trailer still and sitting on the scale weighed 266# So just over 250# I can cut down the shaft and mount new brackets so I'm curious if you have a dual spring setup for this door.