A notched piece (Dutch: keepstuk) is a timber member into which a notch — a housing cut across the grain — has been made, so that another piece of wood fits exactly into it. The notched piece is the “receiving” half of a notched joint: the notch has the shape and thickness of the part it connects to.
How it works
The notch is sawn out and pared clean with a chisel to a flat bottom and straight cheeks. Because the mating timber drops into the notch, the joint resists forces in several directions:
- Lengthwise support — the inserted piece cannot slide sideways.
- Positive location — the cheeks of the notch hold the part in place.
- Large glue area — when glued, a large bonding surface is created.
The depth of the notch is usually half the timber thickness (half-lap) or just enough to let the other piece finish flush.
Application
- Frames and battening — where beams and studs cross.
- Scaffold and garden timber — simple, strong corner and cross joints.
- Furniture and cabinet work — for neat, flush connections.
Points to watch
- Saw the notch slightly tight and pare it to fit; a loose notch gives play and weakens the joint.
- Reinforce with glue, screws or dowels where needed; leave it unglued for demountable structures.
- Allow for timber movement: too tight a notch can split when the wood swells.
Related terms
- Notched joint
- Wood joints
- Mortise and tenon joint
- Dowel
- Timber
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