I would check with the manufacturer first to see if they offer any options or work with another company that does.

Phantom Screens has been around for a while and does large openings.

Thanks Chispa. Yes Phantom do large openings but only up to 10ft tall. I’ve found a couple of other manufacturers that do 10ft also, but not found any that can cover 12ft high openings

The screen industry probably hasn't caught up to the oversized multi-slide doors, which keep getting engineered taller and larger every year! We did four different 10 ft high multi slide doors and we are happy with the height. Ceilings are 12 ft. No need for screens on the doors as we have a screened pool enclosure ... as soon as materials arrive and they can get it installed!

Did you ever find screens for your large multi sliders? What did you end up with and are you happy?