I've used a table saw (as the plastics supplier uses) as well as a hand-held saber saw -- depending on the geometry of the cut. I use a red-devil blade on my table saw -- with teeth count appropriate for maple, and use a blade in the saber saw suitable for metal. Both seem to work ok. The only down-side is that the cutting process creates lots of static electricity which causes the waste particles to stick to the polycarbonate sheet. I then use a mild glass cleaner soaked rag to remove the clinging particles. A pain, but simple to do.What did you use to cut the polycarbonate?
I will use the polycarbonate for the van ceiling and for the shower walls. (If I ever get that far on the conversion)
Also thought that the use of the clear plastic template for the floor was a great idea. Thanks for sharing.