Re: Homemade Cabinet
If you're going to frame the interior with 2x4's already, why not just use them to support shelves? Run them all the way to the top of the cabinent. Mark where you want shelves, drill pilot holes and add those little metal studs used to hang shelves, or use pieces of dowelrod. Then cut plywood or whatever for the shelves themselves.
"I suppose it is the way of hunters. We are very odd fellows." ~ Peter Hathaway Capstick