go to Youtube and search for skunk and trap. there are several videos with both good and bad results dealing with skunks in traps. Be careful. I bought a ~ 6" dia PVC trap, traped a skunk in my yard, release it where MDC said was the local release area. Raised solid door, got back, and skunk walked off. I have a wire trap also, but didn't want to go the tarp route. If you are close to a MDC office, they may loan you a PVC skunk trap.
I bought my PVC trap from snareshop co, with the removable back plate, makes cleaning trap easier. Skunk did not spray while in the 6" PVC trap, being hauled to release area in pickup bed, or while leaving trap.