Flooring/decking - Fiberglass RV

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Old 06-26-2020, 04:02 PM   #1
Name: Bing
Trailer: Sunland Express
Posts: 41

Has anyone tried to use the plastic decking for a floor when removing the original plywood deck. I would think this would eliminate the rotting problem. The decking could be overlaid with underlayment to provide a smooth surface for your choice of flooring. It could be bolted and glued in place
Would the thickness of the decking pose a problem when putting the body back on? I don't know. Anybody want to run with this idea? Just putting it out for discussion.
Happy Trails, Bing

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Old 06-26-2020, 05:16 PM   #2
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Name: John
Trailer: 1978 Trillium 4500, 1979 Boler 1700
Posts: 1,402
In most molded fiberglass campers, the plywood subfloor serves several purposes:

- provides a subfloor for attaching the flooring
- supports the weight of the flooring and furniture
- supports the weight of the occupants
- supports the weight of the fiberglass body, upper cabinets and items attached to the roof

While plastic decking has many advantages, the challenge would be finding a product has sufficient strength to carry additional weight of the fiberglass body, upper cabinets and items attached to the roof.

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Old 06-27-2020, 08:15 AM   #3
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Name: Jon
Trailer: 2008 Scamp 13 S1
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Bing, your profile says you have a 30í fifth wheel. Are we talking about that trailer or another all-molded trailer?

From what little I know about composite decking materials- Starboard is the one Ive heard of, but there are probably others- they donít have the same structural properties as traditional wood-based products. In particular I recall they require more frame support (shorter span) to prevent bending when you walk on it.

Be sure to read the product description and installation requirements carefully.
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