For the East 38th Street layout I want a cleaner, sleeker design when it comes to bench work.  Traditional shelf brackets work fine but they’ve always struck me as a little clunky, especially when the layout is in a living area or den.  The one thing we have going for us is that our models are extremely light, certainly much lighter than a shelf full of even a few books.  We can take advantage of this relatively light weight and utilize a floating bench work system.  The ace in the hole to make this happen are hollow wall anchors.  I chose a product from The Hillman Group designed for half inch thick drywall.  The design is ingenious.  You start by drilling a 7/16″ hole in the drywall.  Next, insert the sleeve and push the cleats into the drywall.  Finally, and this is the cool part, drive the threaded screw and the anchor expands tightly against the back of the drywall.  Remove the screw and replace it with all thread and you are good to go.  The all thread can be a tad wobbly in the sleeve, a situation easily remedied simply by running a nut down the all thread and tightening it against the face of the anchor.   Each individual anchor is rated at 80 pounds which is more than enough.  After the all thread has been inserted into each anchor, your supports are in place.  Put some adhesive caulk on the top of the rods, place your extruded foam slab on top and you are good to go.  The supports are virtually invisible.