The minimum radius of curvature that a piece of wood (or plywood) can be bent without breaking.

The load which, if placed upon a structure or test piece, is just great enough to break it.

Any arrangement of structural units, esp. masonry units, such that the vertical joints between adjacent units do not follow a

Initial excavation work, indicating the start of construction.

The process of sawing logs into boards.

In bricklaying, a cutout in a brick wall, to form an aperture for the insertion of a timber.