In my Nissan Sentra I can fit a few 12' boards or steel tubing by extending them out the passenger side window by a few feet, to the trunk. Then roll up the window as much as possible, they get locked in very safely. It's an old trick.
What I've been tempted to try is to transport 2x8ft plywood by making a frame, but I'm too nervous.
Sent from my iPhone using Tapatalk