Craft · 6 pages · 12 min

How timber frames lock with joints

A timber frame stands because posts, beams, and braces bear on each other through cut joints.

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From the opening

A timber frame is a skeleton of heavy posts, beams, and braces whose ends are cut to fit one another. The joint locks by wood bearing on wood, often pinned with a wooden peg, so the frame carries load through those fitted contacts rather than through a stack of nails. The opening covers shoulders bear, pegs retain, braces stop the frame racking, and the peg is not the beam.

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Inside

Shoulders bear, pegs retain
Braces stop the frame racking
The peg is not the beam
Shrinkage can open a sound cut
Where the idea stops applying
A distinction worth keeping

Sources

Pegged mortise and tenon timber framing
Diagonal bracing against racking

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How timber frames lock with joints

From the opening

Inside

Sources

Also on the desk