In this Instructable I build a custom cabinet for a sit-on sink unit. While I'm installing this sink in my workshop the same cabinet design would equally well work in a kitchen or utility. A sink in the workshop is something I've wanted for a very long time but before now I've never had space or the plumbing would have made it impractical. Instead I've made do with a bottle of water and a bucket or frequent trips to the kitchen sink but no more, now I've got hot and cold r...