Lay two 2x4's out like railroad tracks. Attach
pvc pipes upright on the 2x4's spaced evenly. Both 2x4's will be identical. The pvc probably should be 1/2 the height of your bolts. Put one bolt between each set of two pipes. This makes the bolts at a right angle to the 2x4's and 2 pvc pipes between each bolt. (1 pvc pipe on the 2x4 in front and 1 pvc on the 2x4 in the back) When you are looking at the fabric bolts from the front, head on, you would see a pvc pipe, a bolt of fabric, a pvc pipe, a bolt of fabric, a pvc pipe, etc. and the wood would be underneath. Cut the 2x4's into whatever is an easily transportable length. I hope this is easy to understand.