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OVERHEAD DOORS - CLEARANCE CHARTS


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Headroom Clearances


Standard Lift Door
2" and 3" Hardware

Hi-Lift Door
2" and 3" Hardware

Vertical Lift Door
2" and 3" Hardware

Low Headroom:
Vertical Lift Door 2" and 3" Hardware
Front Mount Springs 2" and 3" Hardware

Rear Mount Springs 2" and 3" Hardware

Drums 2" 2" 3" or
Super 3"
12" R 16" R

Standard Lift

 D400-144 13" 16.5" 18"
 D525-216 14.5" 18.5" 19"
 D800-312 16.5" 19.5" 21"

High Lift

D400-54

n/a HL + 7.5" HL + 9.5"

D525-54

n/a HL + 9" HL + 10.5"

D575-120

n/a HL + 10" HL + 12"

D6375-164

n/a HL + 16" HL + 18"

D800-120

n/a HL + 17" HL + 18.5"

Vertical Lift

850-132

Door Height + 22"

1100-216

1350-336

Vertical Lift (Low Headroom)

850-132

Door Height + 10"

1100-216

1350-336

Low Headroom Front Mount

D400-144

10.5" 18"

D525-216

11.25" 15.5"

D800-312

Low Headroom Rear Mount

D400-144

4.5" 7.5"

D525-216

5"

D800-312

Wood Jamb
Headroom Side 1

Wood Jamb Overlapping Door
Headroom Side 3

Steel Jamb
Headroom Side 2

Steel Jamb Overlapping Door
Headroom Side 4

Jamb Details

  A B C D
2" 1½" 3½" 1" 5"
3" or Super 3" 2" 4" 1" 6"
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