WERM floor on used trailer

[awaywego]

I know how to check to see if a wood floor on a steel frame are in good condition. But how do I check the condition of an aluminum floor with WERM?

It sounds like the whole point of the WERM is to be worry and maintenance free but buying a used trailer is a lot of $ these days, so I am a bit worried that I don’t know what I’m looking for

[Feathered_Feet]

I think your only choice is to hope they installed it correctly and look from underneath the trailer and be picky, since you are only seeing one side of the aluminum