After the 350# of shades, before the Norovirus hit in full force, I worked on three hobbled shades for Denise Wenacur. Two were 120"- those were the small ones. The big one was 158"- over 13'. Then I got really sick for real, and had to postpone the installation for a week. We finally got there, only to find that the household AND their renovation contractor also had been stricken with Norovirus that same week!
It was a bear to sew- it was both longer and wider than my table- but although this might look like uncontrolled chaos, there actually is order to the mess.