He says, "It's an implementation of this hack, with additional low cabinets and an extra workspace: This thin desk allows us to use a guest bedroom as a home office and provided plenty of storage.
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Each workstation on the desk was composed of 1 39" wall cabinet, and a Vika Kaj leg. We also secured it to the wall using a simple "L" bracket. We used some felt covered feet to raise it off of the floor a few inches. The desk tops were somewhat of a wood working project: 1" poplar joined and stained. We also made keyboard shelves and mounted them with glides purchased at the hardware store (They are Blum brand, which I believe Ikea uses them in their kitchen cabinets).
Then we attached the wall cabinets to 2 "over the refrigerator cabinets", set on Capita legs."