Solid dark line on chart indicates maximum frame height possible for a panel without a horizontal mullion.
Broken line on chart indicates maximum frame height for panels stiffened with a horizontal mullion.

Any custom size is possible up to the maximum size shown.
The total number of panels in a unit is only restricted by structural steel consideration.
Generally, the minimum width of each panel is 1'11" (600 mm).

The maximum size limits are based on the weight of a double glazed panel that has a net glass thickness of 5/16" (8 mm). This glass is insulated and each pane is 5/32" (4 mm). For other net glass thickness, this maximum size limit chart will not apply.