I was inspired to combine a shallow base cabinet, a secretary, a concrete counter and room for storage. The project is centered around providing storage for our phone and assorted electronics - fax/copier, Mac Mini (so I'm planning), key storage, mail sorter, drawers for pens and pencils, phone books, etc.)
Originally I drew up a huge wall cabinet, but decided to break it into a base cab and wall shelf, to contrast with the wall stack to the immediate right. This project shows just the base cabinet cut plans. I'll use pocket screw joinery and some wood glue on the quadrupled slats that will support the concrete counter extension.
I'll probably add doors later, and most likely a divided drawer (one face, two drawer boxes) before the concrete goes in.