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Summary: Building dictionary to explain building jargon and terminology from A - Z.
Nail
A slender piece of metal with a point on one end which is driven into construction materials by impact. Nails are classified by size, shape, and usage.
Nail puller
One of a variety of hand tools for pulling nails. The shape and size depends on the nails to be pulled.
Nail punch
A hand-held, tapered steel rod specifically designed to drive nail heads below the surface of wood. The rod is used specifically in finish carpentry work.
Narrow light door
A door with a narrow vertical light near the lock stile.
Natural finish
A finish on wood that allows the grain to show; a clear finish.
Natural gas
A naturally occurring combustible gas used for industrial and domestic heating and power.
Natural stone
Stone shaped and sized by nature as opposed to stone which has been quarried and cut.
Neat
(1) Idiom for exact dimensions, i.e., excavation to the designed width of the footing. (2) A term referring to a process by which a material is prepared for use without addition of any other materials except water. Examples include neat cement or neat plaster.
Neat size
The final size after trimming, planing, or finishing.
Needle
(1) In underpinning, the horizontal beam that temporarily holds up the wall or column while a new foundation is being placed. (2) In forming or shoring, a short beam passing through a wall to support shores or forms during construction. (3) In repair or alteration work, a beam that temporarily supports the structure above the area being worked on.
Needle nose pliers
Pliers that are outfitted with long thin jaws for use in narrow spaces.
Needle valve
A type of globe valve in which a long pin or needle, tapered at the end, moves in and out of a conical seat to regulate the flow of liquid.
Needling
The placing of needles, or a support system using needles.
Negligence
The failure of a party to conform its conduct to the standard of care required by law. The law requires that a person excercise that degree of care which a reasonable person would exercise under the same or similar circumstances. See due care.
Negotiating
Arriving at an agreement by bargaining.
Negotiation
A process used to determine a mutually satisfactory contract sum, and terms to be included in the contract for construction. In negotiations, the owner directly selects the constructor and the two, often with assistance of the design professional, derive by compromise and a meeting of the minds the scope of the project and its cost.
Neon lamp
A lamp that gains its illumination by electric current passing through neon gas.
Neoprene
A synthetic rubber with high resistance to petroleum products and sunlight. Neoprene is used in many construction applications, such as roofing and flashing, vibration absorption, and sound absorption.
Net cross-sectional area
In defining a masonry unit, the gross cross-sectional area minus the area of the ungrouted cores or cellular voids.
Net floor area
The occupied area of a building not including hallways, elevator shafts, stairways, toilets, and wall thicknesses. The net floor area is used for determining rental space and fire-code requirements.
Net load
In heating calculations, the heating requirement, not considering heat losses, between the source and the terminal unit.
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