I need to figure out how deep to make the shelves in the hall and master bath linen closets. I built a house. It took 7 years but we finally moved in last September. I've been doing finish work ever since. I am to the linen closets now.They are 24 inches wide and 19 inches deep.The walls are 8 foot high so that is the height of the closet but the header comes down 14 inches from the ceiling.'ve been doing finish work ever since. I am to the linen closets now. They are 24 inches wide and 19 inches deep. The walls are 8 foot high so that is the height of the closet but the header comes down 14 inches from the ceiling.