The third piece of PVC, for the right leg, should be threaded at both ends. This piece is likely precut to 18 in. long. You'll want to cut this to roughly 12 in., but first do a little measuring.

Thread the rope through the mattress handles. Slip a 5-in. piece of 1-in. PVC pipe over the rope ends and then loop and tie ...

Once the leather is pulled tight around the last and the excess is cut off, the thread is used to stitch a PVC welt to the leather. "PVC welt is the stage where things start to become uniquely Dr ...