Kakushi Ari 隠し蟻

Assembly insights

Kakushi Ari (hidden dovetail) creates a corner connection visible from only one side. The dovetail is stopped short of the front face, requiring careful layout and chisel work to excavate the mortise without breaking through. The result is a strong, pull-resistant joint with a clean appearance—ideal for drawer fronts and cabinet corners where the craftsman prefers a seamless exterior.

Historical context

Kakushi Ari has been used in fine Japanese cabinetry for generations, particularly in tansu (chests), drawer fronts, and boxes where the front face must appear unbroken. The joint demands greater skill than through dovetails because the mortise cannot be excavated from both sides. Master craftsmen regard it as a test of layout accuracy and chisel control.

Construction steps

1. Lay out the dovetail on the side piece; the tail will stop short of the front face.
2. Saw the tail, keeping the cut perpendicular and stopping at the correct depth.
3. Transfer the tail shape to the front piece and mark the mortise boundary.
4. Chisel the mortise from the back only; avoid breaking through the front face.
5. Test-fit; adjust for a snug fit. The front will show no joinery.

Where to see this joint in Japan

• Traditional tansu (chests) — Museums, antiques dealers
• Fine cabinetwork — Kyoto and Tokyo workshops

Variations

Half-blind dovetails (one side visible) are common. Full blind dovetails conceal the joint from both faces but are rarely used. The angle and number of tails can be adjusted for aesthetic or structural needs.