gmw photos wrote:
https://www.lci1.com/
Lippert employee feedback. :)
We had a previous TT with a Lippert frame. Found out the day after we got it there were problems with it. One issue was all spring hangers were bent to one side 1/2" or more. Took the TT to a gov't certified inspection facility who said it was the worst frame they'd ever seen, including lots of substandard welding. Lippert initially said "it's within specs". Yeah, to their substandard specs! Photo below shows what can happen to the superstructure from excessive frame flex (I-beams). TT got returned and replaced under warranty.
Lippert frames have various designs and some are worse than others. One design has I-beams made from 3 pieces of 1/8" mild steel welded together that *look* like a "regular" I-beam - very flexible and not recommended (IMHO). Despite what LCI may say, they don't have good quality control and it doesn't seem to have improved.
One thing I think is lacking is industry regulations for trailer frames like from say SAE. As it is now, Lippert can put whatever weight and length they want on a particular frame design nor do they have to meet any welding standards. Axles and tires can be loaded up to near capacity ratings and lead to things like bent axles and premature tire failures. If a frame fails, it's normally the customer that is blamed for overloading it. Worst case I ever heard of was a Lippert frame that folded like a pretzel at the axle location.
Some manufacturers like Jayco and Lance use BAL frames which uses a special type of rivet and has almost no welding. Northwood uses an in-house built frame on all their model lines which is independently certified to off-road standards and is a very good frame.