A small-scale simplified plan of a building, indicating its location and surroundings.

In a concrete structure under construction, a space where concrete is not to be placed.

A rigid or semirigid slab of thermal insulation.

1. Pieces of wood used to secure, join, or reinforce members, or to fill spaces between them. 2.A method of

Hammer-dressed stones (which may vary in length) having square faces, laid with close joints, in courses not exceeding 12 in.

The breaking of boulders by firing a charge of explosive that has been loaded in a drill hole.

Blocks of wood which are used as paving or flooring.