can it be used as a floor in a camper? does it come in 2 inch thickness?

Hello, and thank you for your inquiry. Trex is only rated to be used as an outdoor decking surface, but we have seen many custom applications with the product. The only downside to custom applications is that we cannot cover them under warranty if something goes wrong with the material. We have 3 product lines available for Decking: Enhance, Select, and Transcend. Only Select and Transcend Decking have a 2x6 board available, and it only comes in square edge. I hope this information is helpful, and please do not hesitate to contact us directly if you have further questions or concerns. Thanks again, -Garrett Felix -Trex Customer Care