Tongue and groove joint — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/tongue-and-groove-joint/  (sheet CC BY 4.0; files Xem Studio Design License, https://xemstudio.com/license/)
Basis: Xem Studio design — geometry computed in the generator from traditional proportions
Catalog version: 2026-10-20

Overall (mm): length 120.0, width 80.0, height 10.0
- Woodworking joint drawn for 3D printing: the parts lock together by shape, so a print can be joined without glue or screws. Drawn at true size with the parts line to line (zero gap) in their assembled position — add your printer's fit allowance to the mating faces (your AI or slicer can do this).
- Edge-joins boards (panels, floors, enclosures) so the faces stay flush.

dimension  value
stock  10 mm boards, 60 mm wide
parts  tongue board, groove board
tongue  3.33 mm thick (middle third), 5 mm long
assembles  edge to edge; slides in from the end or presses in
holds  the boards flush with each other; glue or a frame against pulling apart

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Xem Studio: Joinery design (geometry computed in the generator from traditional proportions) — web — Xem Studio design — https://xemstudio.com/

Free files (Xem Studio Design License, Xem Studio; STEP + STL, 3 parts): https://xemstudio.com/files/hardware/tongue-and-groove-joint/index.json
API: https://xemstudio.com/api/geometry?object=tongue-and-groove-joint