I used to own one. You wouldnt want to make a door in one anyways. Trust me. The thing would blow over in 5mph wind if your not sitting in the chair with it set up. They are ok but the hinges that hold the tent are a weak point. I had to fix mine several times with trips to the hardware store. If it was even slightly windy, the entire structure was just too flimsy to be usable. The material is the same as any tent. They do serve a purpose and was nice for a lightweight easily packable 1 man, just not on a windy day. I sold mine for like $40 on craigslist a couple years ago. Try there. Good luck
