J
Channel |
Metal edging used on drywall to give
the edge a better finished appearance when a wall is not "wrapped"
Generally, basement stairway walls have drywall only on the
stair side. J Channel is used on the vertical edge of the last
drywall sheet |
Jack
post |
A type of structural support made
of metal, which can be raised or lowered through a series of
pins and a screw to meet the height required. Basically used
as a replacement for an old supporting member in a building.
See Monopost. |
Jack
rafter |
A rafter that spans the distance
from the wall plate to a hip, or from a valley to a ridge. |
Jamb |
The side and head lining of a doorway, window,
or other opening. Includes studs as well as the frame and trim. |
Joint |
The location between the touching surfaces of
two members or components joined and held together by nails,
glue, cement, mortar, or other means. |
Joint cement
or Joint compound |
A powder that is usually mixed with water and
used for joint treatment in gypsum-wallboard finish. Often called
"spackle" or drywall mud. |
Joint tenancy |
A form of ownership in which the tenants own
a property equally. If one dies, the other automatically inherits
the entire property. |
Joint trench |
When the electric company and telephone company
dig one trench and "drop" both of their service lines
in. |
Joist |
Wooden 2 X 8's, 10's, or 12's that run parallel
to one another and support a floor or ceiling, and supported
in turn by larger beams, girders, or bearing walls. |
Joist hanger |
A metal "U" shaped item used to support
the end of a floor joist and attached with hardened nails to
another bearing joist or beam. |
Jumpers |
Water pipe installed in a water meter pit
(before the water meter is installed), or electric wire that
is installed in the electric house panel meter socket before
the meter is installed. This is sometimes illegal. |
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