I'm building some draws for a piece of furniture, none of them are over 24 inches wide and 18 inches deep. The sides are made of 5/8" baltic birch and the bottom is 1/4". I've cut grooves for the base in the sides, 1/4" up from bottom and 5/16" deep. Widthwise the plywood is a snug fit in the groove so I can slide the plywood in with a gentle push. My question is how much clearance should the plywood have in the bottom of the groove. I'm only gluing the corners where the sides meet and not the base. Put another way if you're holding the draw with the base installed how much side to side play should the base have?
thanks,
Peter