Sorry, it's PVC flooring/decking. VERY flexible. Want it various places including a temporary cockpit solution. Usually sold by the meter at a fixed width. Force4 have it but not willing to pay that price;-)
Dunno if it's any cheaper? Try googling swimming pool or safety matting.
I've got this on the floor of my RIB, works well as non slip, creates a 13mm "bilge" and is useful for securing things down with cord, fuel tank frinstance, two years hard wear and still good.