Single hem
Double hem
Stiffer
Wiring
2
3
4
5
6
7
8
Pocket lock
Angle stiffener
Standard s slip
Hemmed s slip
Width of folder edge + thickness of sheet
2 times width of folder edges + 2 times thickness of sheet
3 times width of folder edges + 3 times thickness of sheet
4 times width of folder edges + 4 times thickness of sheet