Sorry, Havent had time to get back on....
I would guess the rubber belting is about 3/8 thick. It is horse mat and the only negative thing about it so far is that direct contact with gasoline causes it to swell. We tested a sample with gas and brake cleaner before installing in the trailer. It will go back down, but extra care needs to be taken when you fill the sleds in the trailer. No sense in spilling fuel anyway. Drips here and there arent an issue, it's more of the major overflow that I would be concerned about. It has happened and you cant tell, but just something to keep in mind.
I have it going down the back ramp and all the way to the front V and so far it has shown no signs of wear. Only thing not covered is the front V Ramp. The stuff is very tough and stands up great to carbide and stud abrasion and punctures.
I bought it at Wright Way Trailers in Hiawatha IA (Right next to my place of work) It wasnt cheap, about $800 for both rolls (if I remember correctly) but that is for my 8'x32' trailer.
I have a sample still that I can take a picture of the cross section for you to see
It helps hold in heat and it is ohh so nice walking in the trailer with socks on getting ready if you change in your trailer. Very easy to clean as well.
After 1 year, I have no regrets. I will try to get Pictures up tonight. I spaced it off...