Floor material for wheel house

[Bearseatfish]

Hi I am repurposing a pop up camper i have the walls up now im looking towards the floor. What in your opinion would work better a rubber gym floor material, black linking foam mats or is there something else i should be looking at?

All opinions are welcome. 

[XN]

gym mats are too heavy. use some rubber coin flooring made for garages or just paint with bed liner

[ice dawg]

I used marine carpet. Easy to clean and dries fast.

[jmedy1]

I used the interlocking black foam squares. You can find them at Home Depot, sometimes Harbor Freight.  They are cheap, light, and insulate really well.