Definition of the term Core
A small section cut from any material to show internal composition.
Definition of the term Frostline
The depth of frost penetration in soil. This depth varies in different parts of the country. Footings should be placed below this depth to prevent movement.
Definition of the term Newel
A post to which the end of a stair railing or balustrade is fastened. Also, any post to which a railing or balustrade is fastened.
Definition of the term Service Conductor
In electrical contracting, the supply conductors that extend from the street main or from the transformer to the service equipment.
Definition of the term Water Repellent Preservative
A liquid designed to penetrate into wood and impart water repellency and a moderate preservative protection. It is used for millwork, such as sashes and frames, and is usually applied…
Definition of the term Backhoe
Self-powered excavation equipment that digs by pulling a boom mounted bucket towards itself. It is used to dig basements and/or footings and to install drainage or sewer systems.
Definition of the term Corner Bead
A strip of formed sheet metal, sometimes combined with a strip of metal lath, placed on corners before plastering to reinforce them. Also, a strip of wood finish three-quarters-round or…
Definition of the term Fully Tempered Glass
Flat or bent glass that has been heat-treated to a high surface and/or edge compression to meet the requirements of ASTM C 1048 kind FT. Fully tempered glass, if broken,…
Definition of the term Nipple
A short pipe installed between fittings. A pipe coupling that is threaded on both ends.
Definition of the term Service Drop
In electrical contracting, the overhead service conductors from the last pole or other aerial support to and including the splices, if any, connecting to the service entrance conductors at the…