Anyone do a total rebuild of a TH ramp?
We bought a used TH that had a couple soft spots in the ramp that are just getting worse, so I'm probably looking at doing a total rebuild in the near future and was hoping to get some guidance. It ...
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fred42 wrote:
Taurus18,
Not sure if you have the standard Lippert ramp door that a lot of us have, but I wanted to let you know about the structure of this door.
The first surprising thing is that there is absolutely no structural members, word or metal, anywhere within the interior of the door. Only the perimeter has a metal frame. The strength comes from high pressure lamination of otherwise weak materials.
The overall 1 5/8" cross-section looks like this: (values are approximate and I am calling the materials as they appear to me)
Outside
1/16" fiberglass
1/8" composite
1 1/4" white Styrofoam
1/8" luan plywood
1/16" non-skid material
Inside
This the 2016 model that I have, They may make other configurations.
That explains the mushiness of my 2014 Grand Design Momentum which is a Lippert frame. We have full-timed in ours for almost 2 years and recently the upper center portion of the ramp has gotten mushy feeling. A little concerning when I'm loading/unloading a 1,000 lb Goldwing at almost every stop. I always load it in the center of the garage, so that's the section that's weakening. Wonder if putting a strip of diamond plate painted with a non-slip paint would help? Not sure what the best way to attach something would be if there is no structural members?
