We inherited this AC closet setup from the previous owner of the house we bought. The HVAC unit is framed in so that it's pulling the return air from the vent below. Combustible air for the furnace is supplied from a duct coming from the attic - which means (I guess) that the slats venting this door are no longer necessary.
On the inside, they tried to seal off the door by installing a thin sheet of plywood across all these vents (didn't have room for a picture). The closing mechanism is just a magnetic catch by the knob, like a cabinet.
The inside of the door frame measures ~30x66.5. I can't seem to find any doors this size on the websites of home improvement stores, which leads me to believe this is not a standard size and would have to be a custom job.
So - how do I replace this with a door that doesn't have these ugly, dust-collecting slats?
Has anyone done this before?