Dado (joinery)

A dado (US and Canada), housing (UK) or trench (Europe) is a slot or trench cut into the surface of a piece of machinable material, usually wood. When viewed in cross-section, a dado has three sides. A dado is cut across, or perpendicular to, the grain and is thus differentiated from a groove which is cut with, or parallel to the grain. Dados are often used to affix shelves to cabinetry bodies. Similar to the dado, see rabbet (rebate).

For other uses, see Dado (disambiguation).
A through dado (left) and a stopped dado

Variations
  • A through[1] dado involves cuts which run between both edges of the surface, leaving both ends open.
  • A stopped or blind[2] dado ends before one or both of the cuts meets the edge of the surface.
  • A half dado is formed with a narrow dado cut into one part, coupled with a rabbet of another piece. This joint tends to be used because of its ability to hide unattractive gaps due to varying material thicknesses.[3]

See also

References
  1. Mortise and Tenon Frame Joints, WoodworkDetails.com
  2. Making Perfect Rabbet and Dado Joints AmericanFurnitureDesgn.com
  3. William D. Umstattd; Charles W. Davis (2005). Modern cabinetmaking. Goodheart-Willcox. p. 484. ISBN 1590703766.
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