The commercial cabinet makers that I know use three router bits so frequently they don’t change bits they change routers. My cabinet design is based on their experience and then excessively over engineered. I also built in a 4″ dust port with a 2.5″ short connector to the fence that can be capped when not in use. With an adequate dust collector this solution works great. The frame is constructed of 3/4″ birch plywood. The drawers and doors are made of walnut & maple. The inside of the box joint drawers is poplar while the half-lapped drawers are made of 1/2″ birch plywood. Throughout the cabinet each component was a new technique lesson so the drawers in the middle column do not match the right column and the two doors don’t match either. The end result is a Frankenstein of design but since it’s a toolbox I don’t care that it looks a little odd. I kind of like the final result. It’ll outlive me and throughout my life it will be a great reference peace for a variety of techniques including my first quality efforts at box and dovetail joints as well as rabbiting in shelves and a rather complicated glue-up. I used the free non-commercial license of Autodesk Fusion for the prototype design. That model is available as a free download from GrabCAD. If your doing non-commercial design Fusion is a powerful yet easy to use 3D modeler that’s great for woodworkers.