A ceiling divided into panels, which are usually surrounded by moldings.

The division of a building into fire-retardant sections, each of which can be closed off from the others, thereby impeding

A small space within a larger enclosed area, often separated by partitions.

A community whose inhabitants depend predominantly on a single company for their employment and for many of their personal and

1. A pipe flange which has been drilled so that it will fit the standard drilled holes in a flanged

One of a group of piles, driven in a pattern, to compact a surface layer of loose granular soil to

1. The process of inducing a closer packing of the solid particles in freshly mixed concrete or mortar during placement

The ratio of the weight of concrete which fills a container of standard size and shape (when allowed to fall