So I've been searching and trying to find a PVC enclosure for my tortoises however I'm not willing and wanting to wait 10 16 20 weeks for it to get shipped so I am taking it upon my own hands to build my own enclosure out of PVC sheets from Home Depot but I had a question that plastic 2x4 decking the all-weather decking could I use that on the inside for my supports rather than wood 2x4s for the structural support