Dado joint (housing joint) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/dado-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 90.0, width 80.0, height 100.0
- 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).
- A square groove across a panel that the shelf sits in.

dimension  value
stock  15 mm side panel, 10 mm shelf, 80 mm deep
parts  side panel, shelf
dado  10 mm wide (the shelf), 5 mm deep (one third of the panel)
assembles  the shelf slides or drops in
holds  shelf loads; needs glue, a screw or a sliding dovetail against pulling out

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/dado-joint/index.json
API: https://xemstudio.com/api/geometry?object=dado-joint