I am 99% sure that there are no "extra" charges for custom sizes, since Stewart custom builds every screen. The cost of a 93" wide 1.78 format screen will be more than a 90" wide 1.78 format screen, but only because of the extra screen material and additional framing material.
Don Stewart (THE Don Stewart) is a regular contributor to this forum, as are numerous Stewart dealers. Guys, if I'm wrong, please correct me. And Don, Santa apparently forgot to give me the microperf'd 100" wide 1.78 Horizontal ScreenWall ElectriMask I asked for...any help? :)
Alex doesn't live here anymore