Maybe 4 separate units with the center 2 on rollers so you can open 8 ft wide.
There is a company out of Florida that makes the 16 ft slider doors ... they don't ship to Houston. The work in a specific region.Maybe 4 separate units with the center 2 on rollers so you can open 8 ft wide.
Considered that as well but the fold down legs will interfere with a vehicle when parking one on that covered patio.maybe just 8 ft that swings up with fold down legs at each end?