Scarf joint in oak

A scarf joint in oak joins two lengths by overlapping their prepared ends. The overlap is made long enough to transfer load through the joint.

Oak proportion

Tredgold (1871) gives six times the beam's depth or thickness as the whole length of the scarf in oak, ash or elm when no bolts are used. A beam is a long structural member, and a scarf is the sloping or stepped overlap joining its lengths.

Resistance

Hodgson (1902) describes scarf proportions for oak and other woods in relation to resistance to tension, pulling apart, crushing and shearing, sliding failure across the joint.

Timbers for this joint

The Index records each joint against each timber as a cited hit, or as an absence. No source in the Index records this pairing. No pairings have been written yet.