Can you just not get a better awning carpet? Our Kampa carpets are pretty resilient. And have never had stones come through them. I think you can still get 'rubberised' honeycomb breathable 'carpets' from some places at a push.
We have a 5m x 4m pond liner 1mm thick Butyl Rubber, that goes under the ZiG on top of the FootPrint (£2 disposableTarp), our bespoke tent carpets are of course still in perfect condition after 12 years use, although in fairness that just 24 weeks of camping.
For the awning flooring we use something called Aerotex ( 4m x 4m ) it’s a kind of soft vinyl covered hemp type product, which has definitely stood the test of time, and is quite friendly to the pitch as grass can grow up through it, very nice on the feet it has to be said.
A day of all things motorhome and campervan. The show is held both in the main indoor arena and across the grounds. Catering, hot drinks and food options are available. Easy access to the site and free parking included. Win one of five pairs of day tickets