I built this for my 11 year old grandson who has three younger siblings. I wanted some hidden storage for him, but most of all, I took safety into mind when designing it. The bookcase is roughly 4feet wide and 5 feet tall and 12" deep, with a solid center shelf and two divided section above and below. I flipped the section layout for aesthetic appearance. The two very bottom shelves actually are piano hinged lids that raise up to uncover 2 1/2" hidden storage underneath. The top of the cabinet, or lid in this case, has two Blum inset hinges and also raises up to expose a full width 4" hidden storage compartment. Rather than pegs, I used regular metal shelf railing, for witch I routed the wood so the railing insets and sits flush with the wood. Each shelf had a routed slot where the railing clip sits, so that the shelf actually sits with the clips inset to allow for better shelf stability and no shelf sliding. There are two sold shelves, the middle shelf and the two bottom shelves. There are four sections for adjustable shelving. two sections are 12" wide and two are 32" wide. There are a total of 8 adjustable shelves and each one has a routed round-edge front to avoid any splintering. The trim has all routed rounded edging on front and sides as well. The side trim is the same widths as the front for uniformity. I also put a 3/4" pine strip on the bottom of the back that is 12 " wide. This gave the unit added weight in the back to avoid tipping of the bookcase in the event one of the siblings was to climb on it. The book case was fully sanded with Ryobi sanders, then vacuumed and wiped down with clean cloths. I then used sponge brushes to apply two coats of Min Wax Oil Based stain, sanding between coats. I finished it off with three coats of Min Wax Medium Gloss Polyurethane, also applied with sponge brushed, them polished the entire thing with non-lint cloth. There are absolutely no edges, or corners that little ones can catch themselves on. Every corner was routed with a round edge. This is a very sturdy well built bookcase that will give my grandson enjoyment for many years to come. THIS IS ONLY THE FOURTH THING I HAVE EVER BUILT.