Diy Tarp Canopy Frame . Retail canopy kits, tarps, frame fittings. I made marks every 6 inches from the bottom of the poles for about 3 feet up on each one so i could use them to set the pole height using the deck floor as my line up point. DIY Boat Cover (or tarp) Support from forums.vwvortex.com Stake down the 4 corners of the tarp through the holes provided with your guylines. Put 1 longer pole in the middle of the canopy to create a peak. Build a cheap diy canopy carport or.