868
Glossary
light-emitting diode (LED) light: A lightbulb
that relies on light-emitting diode technology.
Most LED lightbulbs intended for residential
use are supplied with standard bases so they
will fi t the same light fi xtures traditionally
used for incandescent bulbs.
lighting circuit: A branch circuit used for
permanently installed lighting fi xtures, as
well as outlets for lamps, radios, televisions,
and similar 120-volt devices.
lighting fi xture schedule: A schedule of
lighting fi xtures that contains all of the
fi xtures, switches, and other materials and
information needed to install the electrical
system for a residence; similar to a door and
window schedule.
lighting outlet: A contact device that allows
electricity to be drawn off a circuit specifi cally
for lighting.
lintel: A horizontal structural member that
supports the load over an opening such as
a door or window.
live load: A fi xed or moving load that is not
a structural part of the house; examples
include furniture, occupants, and snow on
the roof.
living area: The area of a home in which the
family relaxes, entertains guests, dines, and
meets together.
living level: The habitable area in a split-level
house where the family relaxes, entertains
guests, dines, and spends time together.
long break line: Thin, straight line used to show
that part of a long feature has been omitted
from a drawing.
longitudinal building section: A full building
section taken lengthwise across the longest
overall dimension of a building.
longitudinal method: A method of roof beam
placement in post and beam construction in
which the beams are placed at right angles to
the roof slope; roof decking is laid from the
ridge pole to the eaves line.
lookout: A support member that fastens the
soffi t in a wide box cornice.
L-shaped kitchen: A kitchen in which the work
centers are located on two adjacent walls.
jalousie window: A window that has a series
of narrow, horizontal glass slats that are held
in metal clips, which in turn are fastened to
an aluminum frame.
job skills: Technical skills you need to perform
a job correctly.
joists: Structural members that provide support
for the fl oor.
K
key light: The main light that provides most of
the illumination in a rendered presentation
drawing, from which shadows are calculated
and drawn.
king stud: A full-height structural member at
the sides of a wall opening to which
trimmers (also called jack studs) are nailed to
provide additional support.
kip: Unit of measurement for the load a beam
will support; equal to 1000 pounds.
L
L stairs: A stairway that has a landing at some
point along the fl ight of stairs at which the
stairway turns.
laminated veneer lumber (LVL): A product in
which veneers of wood are stacked in parallel
and glued under pressure; used for headers,
beams, columns, joists, and as fl anges for
wood I-joists.
land surveyor: A person who establishes areas
and boundaries of real estate property.
landing: A fl at fl oor area at some point between
the top and bottom of the stairway. The areas
at the top and bottom of the stairway may
also be considered landings.
landscaping plan: A plan that shows the type
and placement of plants and other elements
included in landscaping the site of a new
structure.
lath: A wire or ribbed material that provides
support and attachment for the layers of
stucco applied to a wall.
lavatory: A bathroom sink.
layer: A virtual piece of paper on which CADD
objects are placed.
lifelong learning: Willingness to learn new
skills on a continual basis to keep your job
skills current.