TriVantage Also has line of retractable awnings available that they offer in 3 sizes only. 

These special sizes only come in the sizes shown. If you can use these sizes.
We can offer a considerable savings over custom designed awnings.

These awnings come with Sunbrella fabric which has a ten year limited warranty. The frame has a three year warranty.

They come in the following sizes only.

Proj       Wide
9' 10" X 11' 11"
9' 10" X 15' 8" 
9' 10" X 19' 5"

The fabric colors are:

Forest Green
Heather Beige
Jet Black

Some stripe fabric are available at a small increase in price.

If you are interested in 12 ft wide you could use 11 ft 11 inches
If you are interested in 16 ft wide you could use 15 ft 8 inches 
If you are interested in 20 ft wide you could use 19 ft 5 inches

The projection of 9 ft 10 inches will cover any projection up to 9 ft 10 inches

By making some small compromises you could save Hundreds of dollars