I was looking for some thoughts, ideas, guidance, advice, etc. on upper cabinet construction.
Background:
We build upper units with 5 pieces of plywood and a face frame. 3/4" UV1 side top (1), bottom (2), and sides (3,4) and a 1/2" UV1 back (5) for any unit with solid doors on it. There may be partitions of course but we'll just consider the simplest example. The sides and back are dadoed for the top and bottom shelf, and the entire box is pocketholed into the face frame. We flat line finish everything in the shop through a spray machine and assemble after finishing.
Issue:
The problem I am running into is on any prefinished interior upper box, I have to paint the plywood underneath the dado for the bottom shelf. It's not a problem to paint the bottom, but it's a massive waste of time, tape, paper, etc. to tape up the entire side to run it through the machine, and still takes a long time if I have to scuff the 1 1/4" (we normally have a 2" bottom rail on our upper units) of plywood that is exposed on the bottom side of the box.
SO--I was wondering if any of you guys have run into this and come up with something, or how do you deal with this in your shop? I've suggested going to a UV2 side plywood for our bottoms so the bottom of the bottom would be prefinished, but that was a no-go with my boss xD. Any ideas?