Joinery / Interlocking splice
Finger joint
/ˈfɪŋ.ɡər dʒɔɪnt/noun
Named for the resemblance of the interlocking profiles to clasped fingers.
Definition
A joint in which matching comb-like profiles cut into the ends of two timbers interlock and are glued, forming a longer continuous piece.
Fig. 56 — Finger joint: schematic studyNOT TO SCALE
Illustrative study — Finger joint · AI-generatedSAMPLE IMAGE
Photo study — Finger joint · AI-generated00:06
Structural & construction notes
The large glued area gives strength approaching solid timber, making finger joints common in laminated and engineered wood. Profile geometry and adhesive quality control performance.
An educational reference. Project-specific design requires professional guidance.