STD. Cross Section	Width	Length
2.75" (70mm) x 2.25" (57mm)	2ft (610mm) to	Up to 7ft
3.75" (95mm) x 2.75" (70mm)	3ft 6 inches	(2134mm)
5.75" (146mm) x 2.25" (57mm)	(1067mm)
10.75" (273mm) x 2.25" (57mm)	Clear opening

Any size than standard can be supplied on request at extra cost for orders of minimum
numbers of Doors at a time.