A piece of lumber of small dimensions, used for a joist or an upright piece in a house framing.

小桁；托梁。

Size of a building stone or lumber.

建筑所用的石、木的尺寸。

Width and thickness of frames planking, or other elements of a boat's hull.

船的各部份宽度与厚度。

A small amount; modicum.

少量；少额。