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Old 11-28-2014, 11:02 PM   #1
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5r GVWR to Floor Substructure ratio

Ok, so I'm trying this thread at maybe a different perspective. We bought a FR 8528 super lite with a GVWR of 9k and it is everthing we wanted. Now fulltimers the floor is spongy. The substructure is sandwiched hardboard insulation, between luan. I floated a 3/8" hardwood floor over it and it does help. Knowing, that the number of slides, appliances, and overall length increases GVWR, my question is "at what GVWR does FR in it's fifthwheel lay 5/8" or 3/4" (plywood) substructure"? Or, is it overall length?
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Old 11-28-2014, 11:41 PM   #2
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I don't think the relationship is related to camper GVWR...it's by design choice and most FR campers have laminated floors including Cardinals. Of course it's no lightweight and will have a stronger designed aluminum structure in the laminated floor.


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Old 11-29-2014, 01:38 PM   #3
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Thanks Dave. I understand the framing. Maybe it's the model? I've been told to look at the sandpiper models, they are heaver 5/8" plywood laid on the aluminum framing. and I did anticipate the increased GVRW. Certain model seam to be with while others seam to be without (plywood substructure).
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