necessary:
essential, indispensable and/or required
newel post: a post used in the
balustrade (handrail) to
hold up or secure handrails or
guardrails on stairs or
decks; usually the end or main post
nonbearing
wall: a wall used only to separate areas, and which
carries only its own weight
nonconforming
use: a property or item which does not
conform to the zoning of the area or surroundings
nosing:
the edge of a step which projects over the
riser below
