Started off at WalMart buying twin flat sheet.
We bought fir strips, or 8 ft 1X2’s and cut them in half for the A-Frame, and then at 60″ for the bottom middle. We bought 3/4″ PVC and cut them at 60″, so we could fold the sheets over and staple them to the wood so they wouldn’t tear as easy. We also bought two 3/4″ PVC end caps.
Read instructions: A-Frame Pup Tents