re: TIPS: building a shelf

Have you tried this…. Screw a 2×4 on edge to the wall, build a hollow box with an opening along one edge that will slide over that board. You will need long screws or drill holes thru before putting the screws in, and, voila you have a floating shelf! If you are good at making boxes this will be a snap. If you make a few you can stagger them on a wall as a decorative theme. You can vary the width and length but the thickness has to fit over the 1 3/4" thick 2×4. You can also vary the materials or color as well to match the trim or room decor.