On Aug 11, 11:42 am, BobK207 wrote:
On Aug 11, 7:53 am, Andrew Sarangan wrote:

Is it possible to cut out a window on a regular garage door? I need to
install a fresh-air intake grille for an exhaust fan, and the garage
door appears to be the best location.

I am not sure what the construction material is, but the outer skins
appear to be somewhat flexible, so I am thinking it is a thin steel
skin with an open cavity inside (or foam).

Any suggestions?

Yes, it is "possible" BUT depends on the details.......

Based on your brief description sounds like a steel sectional door
with foam filler.

Also depends on the size of the intake grill relative to the section
height.

All the material you remove is doing a job; strength & stiffness.
You've got the replace the capacity you remove.

Like drilling holes in or notching beams ........ it is doable but you
gotta be careful.

I might attempt it but I would discuss it (& get it eye balled) with
at least one or two technically competent associates.

Why not just pop the door open an inch or two?

cheers
Bob

The doors panels are 18" high and each panel spans the whole 16'
width. My thought was to cut out a 10"x10" square, which should be
small enough to not compromise the panel strength.

So far I have been popping opening the door by about an inch, but I
need a proper vent with a mesh to filter out debris and insects.