Page 8 of 22
507635-05
Issue 2245
Adjustable Roof Curb Dimensions - Air Conditioners & Heat Pumps
(Welded Style)
A
B
C
3/4 (76)
6
(152)
1
(25)
11-1/2
(292)
42-7/8
(1089)
2-1/8
(54)
Built-In Rain
Diverter
(Not Shown)
Front Flange
8 (203)
NOTE:
Minimum
Height
4 (102)
Built-In Drip Edge
Unit Base Rail
Unit Base Rail
Clips (4)
Sides and
Back Flange
6 (152)
Unit Base Rail
Clips (4)
Supply
Air
Opening
Return
Air
Opening
Usage
A
B
C
in.
mm
in.
mm
in.
mm
24,30,36
42-7/8
1089
13-7/8
352
16-7/8
429
42,48,60
51-3/8
1305
19-1/2
495
19-1/2
495
