5 ⁵⁄₈" x 4 ³⁄₄"

This dimension is the smallest area of the cat door that your cat will have to enter.

2 ³⁄₄"

Depth of the inside tunnel

6 ¹⁄₂" (W) x 6 ³⁄₄" (H)

The size of hole required to fit your cat door

8 ³⁄₈"

A circular hole is required to install the cat door in glass. The optimum hole size is 8 ³⁄₈", but the cat door can be installed into holes up to 10 ¹⁄₄" in diameter.

8 ¹⁄₄" (W) x 8 ¹⁄₄" (H)

Size of the exterior cat door frame

1 ⁵⁄₈"

• Flap opening dimensions
• Tunnel depth
• Installation hole dimensions
• Glass mounting dimensions
• Exterior frame dimensions
• Front frame depth