How To Measure Upper Deck Frame Flex on a Fifth Wheel RV

The RV community is buzzing with stories about "frame flex" and "frame failure". Fifth wheel owners are sharing their stories of frustration after identifying these issues. There are many symptoms of frame flex and failure but there is little information about how to properly diagnose your frame. This guide is from Lippert Components, manufacturers of most RV fifth wheel frames. Complete their guide and contact Lippert with your measurements if you're worried your RV has frame flex issues. Please note, some flex is normal and tolerance is going to vary from unit to unit.

As always, we recommend hiring an NRVIA Certified RV inspector before you buy any RV. RV inspectors are trained to look for signs of frame flex and other conditions.