The Wooden Joint That Slides Together And Resists Pulling Apart
A Shelf Can Lock Into Its Side: A shelf resting in a straight groove has support underneath it. A sliding dovetail adds something more: an interlocking shape. One board carries a continuous flared tongue , while the other contains a matching groove with sloping walls. The pieces join by sliding together from an accessible end. The shape explains the name. Viewed from the end, the tongue resembles a dovetail rather than a plain rectangle. Its wider portion fits behind the groove’s narrower opening, resisting a straight pull away from the receiving board. Rockler describes this as a joint that can connect pieces without relying on separate fasteners.