I did some budget awnings a few years ago.
Construction:
One 10' length of 2" PVC pipe that acts as the outer support and "roller" similar to the manufactured awnings.
Two 10' lengths of 3/4" steel conduit. Cut down to 7' long, flatten one end, and drill a 3/8" hole in the flattened part.
Two 3/8"x2" carriage bolts, two matching regular nuts, four flat washers, and two matching wing nuts.
Two 2" PVC pipe caps. Drill a 3/8" hole in the center of each cap. Install the carriage bolts with the threaded end out, with a flat washer and regular nut. Glue the caps on to the pipe.
One 10'x8' silver tarp. Screw the tarp to the pipe with self-drilling lath screws and fender washers.
I used small steel carabiners to attach the loose end of the tarp to the drip rail on my trailer. Unfurl the "awning," add the conduit legs, and tie down with rope and tent stakes. By angling the legs back toward the trailer, you can introduce a pitch to the tarp so water will run off.
Works pretty good but it's awkward for one person. I actually went back to using an EZ-up.
