Welcome Tom:
We're glad to have you. Your shade project should be fairly easy using vertical 2 X 6s every 4' with 1/4" deep grooves cut at a 45* angle every 8" to 12". Put the bottom of the 2 X 6s in the ground and see if you can screw the tops to the awning (at a pretty strong point). Now, use 1 X 8 boards in the grooves with construction adhesive and brads in each end for your perma-shade. The grooves could be made with a router (the easiest way) or with a circular saw. Use a 'C' clamp or two to hold your Swanson Speed Square in place for a router guide. There used to be an abundance of 1 X 8, tounge and groove cedar out your way. If you could buy that by the bundle and 16' long, a bundle would go a long way.
Best wishes on your project. Please let us know how it turns out.
Glenn
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