Continuous Geared Hinges - Fully Concealed Models
Documents  Cross Reference  CR78 1120 & CRHD78 1120  CR78 1570 & CRHD78 1570
CR78 2100 & CRHD78 2100  CR78 2240 & CRHD78 2240  General Information  Full Surface Clearance

Print Catalog Page
CR78 1120, CRHD78 1120, CR78 2240, CRHD78 2240
The above models are primarily used for new doors and frames. Both leaves are fully mortised. They can also be used on renovations for a new door with an existing frame or an existing door with a new frame. These hinges will cover existing standard full mortise hinge preps.
Required Clearance
  Standard Metric
Single Doors (Square Edged)
A. Thickness of Hinge 5/16"  (10/32")    8.0mm
B. Allowances for frame irregularities 1/32"  (1/32") 0.8mm   
C. Single Door Clearance on Lock side 1/8"  (4/32") 3.2mm
Total 15/32" 12.0mm
Single Doors (Beveled Edged)
A. Thickness of Hinge 5/16" (10/32") 8.0mm
B. Allowances for frame irregularities 1/32"  (1/32") 0.8mm   
C. Single Door Clearance on Lock side 1/8"  (4/32") 3.2mm
D. Allowance for Beveled edge 1/32" (1/32") 0.8mm
Total 16/32" 12.8mm
Pairs of Doors (Square Edged)
A. Thickness of Hinge 5/16" (10/32") 8.0mm
B. Allowances for frame irregularities 1/32"  (1/32") 0.8mm   
C. Recommended Edge to Edge clearance 3/16"  (6/32") 4.8mm
D. Second allowance for frame irregularities 1/32"  (1/32") 0.8mm
E. Second hinge thickness 5/16"  (10/32") 8.0mm
Total 28/32" 22.4mm
Pairs of Doors (Beveled Edged)
A. Thickness of Hinge 5/16" (10/32") 8.0mm
B. Beveled Edge Allowance 1/32"  (1/32") 0.8mm
C. Allowances for frame irregularities 1/32"  (1/32") 0.8mm
D. Recommended Edge to Edge Clearance 3/16"  (6/32") 4.8mm
E. Second Allowance for frame irregularities 1/32"  (1/32") 0.8mm
F. Second allowance for beveled edge 1/32"  (1/32") 0.8mm
G. Second Hinge Thickness 5/16"  (10/32") 8.0mm
Total 30/32" 24mm