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23 1/16”
(58.6 cm)
20 3/16”
(50.9 cm)
20 3/16”
(50.9 cm)
*Before centering doors in opening, make the notches in all four corners for double access doors and only in the hinge
side for single access doors. The notches need to be 1” long x 2” wide. Attach with the four screws that are provided.
A
B
AD2820T AD1620T
A (includes notches) 28 1/4” (71.8 cm) Min. 16 1/4” (41.3 cm) Min.
30 1/4” (76.8 cm) Max. 18 1/4” (46.4 cm) Max.
B (opening only) 20 1/4” (51.4 cm) Min 20 1/4” (51.4 cm) Min
20 1/2” (52.1 cm) Max. 20 1/2” (52.1 cm) Max.
1” (2.54 cm) Min.
For Single Access Door (AD1620T): Only notch the side where the hinge is located. Door can
be mounted with left or right door swing.
2” (5.1 cm)
2” (5.1 cm)
1” (2.5 cm)
1” (2.5 cm)
notch*
notch*
2 3