さねはぎ

noun

tongue and groove joint

A woodworking joint where a protruding tongue on one board fits into a groove on another. Used in flooring, paneling, and traditional Japanese architecture.

• この床ゆか板いたはさねはぎで接せつ合ごうされている。

  These floorboards are joined with a tongue and groove joint.

• さねはぎ加か工こうを施ほどこした板ばん材ざいを使つかうと、隙すき間まができにくい。

  Using boards with tongue and groove processing makes gaps less likely to appear.