Installation Guide
9
Style 1 - Cut Openings for 3¼" x 10" 
(8.3 cm x 25.4 cm) Rectangular Vent System
Roof Venting
To make a 4¹⁄
4
" x 10½" (10.8 cm x 26.7 cm) rectangular 
cutout on the underside of cabinet top and bottom:
1.  Mark lines ¹⁄
2
" (1.3 cm) and 4³⁄
4
" (12.1 cm) from the back wall 
on the centerline of the underside of cabinet.
2.  Mark lines 5¼" (13.3 cm) to the right and left of the centerline 
on the underside of cabinet.
3.  Use saber or keyhole saw to cut a rectangular opening for 
vent.
4.  Repeat steps 1-3 for the underside of the top of the cabinet.
Wall Venting
To make a 3½" x 10½" (8.9 cm x 26.7 cm) rectangle in the 
wall:
1.  Make 2 lines by measuring ³⁄
8
" (0.9 cm) and 3
7
⁄
8
" (9.8 cm) 
down from underside of cabinet and mark on the centerline 
on the back wall.
2.  Mark lines 5¼" (13.3 cm) to the right and left of the centerline 
on the wall.
3.  Use saber or keyhole saw to cut a rectangular opening in the 
wall for the vent.
Style 2 - Cut Openings for 3¼" x 10" (8.3 x 25.4 cm) 
Rectangular Vent to Round Vent Transition
Roof Venting
To make a 4¹⁄
4
" x 10½" (10.8 cm x 26.7 cm) rectangular 
cutout on the underside of cabinet bottom:
1.  Mark lines ¹⁄
2
" (1.3 cm) and 4³⁄
4
" (12.1 cm) from the back wall 
on the centerline of the underside of cabinet.
2.  Mark lines 5¼" (13.3 cm) to the right and left of the centerline 
on the underside of cabinet.
3.  Use saber or keyhole saw to cut a rectangular opening for 
vent.
To make a circular vent opening on the underside of the 
cabinet top:
1.  Mark a centerline on the underside of the top of cabinet.
2.  Mark a line 5" (12.7 cm) from the back wall on the underside 
of the top of cabinet.
3.  Use a compass or a circle template to draw a circle with a 
diameter that is ¼" (0.64 cm) larger than the vent.
4.  Use saber or keyhole saw to cut the circular vent opening.
Style 3 - Cut Openings for 7" (17.8 cm) Round Vent
To make a circular vent openings on the underside of the 
cabinet top and bottom:
1.  Mark a centerline on the underside of the top of cabinet.
2.  Mark a line 5" (12.7 cm) from the back wall on the underside 
of the top and bottom of cabinet.
3.  Use a compass or a circle template to draw a circle with a 
diameter that is ¼" (0.64 cm) larger than the vent.
4.  Use saber or keyhole saw to cut the circular vent opening.
⅜"
3⅞"
Cabinet
front
(0.9 cm)
(9.8 cm)
5¼"
(13.3 cm)
Centerline
5¼"
(13.3 cm)
B
*From wall, not cabinet frame
A
A. 
1
/
2
" (1.3 cm)*
B. 4
3
/
4
" (12.1 cm)*
*From wall, not cabinet frame
Cabinet cutouts
A
B
A. 
1
/
2
" (1.3 cm)*
B. 4
3
/
4
" (12.1 cm)*
*From wall, not
 cabinet frame
A
A.  5" (12.7 cm)*
Circular vent opening
Cabinet 
cutouts
*From wall, not
 cabinet frame
A
A.  5" (12.7 cm)*










