said by Msradell:That's an oddball size! Is this an older house?
Trailer house! Modular Home.
Coleman Evcon furnace. Filter goes in the door.
I don't know for sure if that is really how it is supposed to go but it seems like it.
Table saw. I set the fence ~1" and cut the cardboard back from 2 corners.
Jam the filter media in and bunch it up without cutting through the media so air can't bypass.
Duct tape holds the corner together well enough to get the filter into the door/frame.
