Glossary of door shop terms – Therma-Tru SHOP 1 General Information - Book Size User Manual
Page 4

General
Information
1.4
2014 (BOOK SIZE)
Shop 1
Glossary of Door Shop Terms
Clear Jambs: Natural wood door frames,
without paint or primer applied, and which
are made of full-length pieces of stock, with-
out joints or knots.
Closed-Cell Foam: Sponge-like material,
usually used in gaskets and weatherstrip-
ping, which compresses into joints, but
absorbs little water.
Closer Block: An inside reinforcement, usu-
ally placed across the top edge of a door, to
enable firm fastening of self-closing hard-
ware to the door.
Continuous Sill: A sill used for a type of
door and sidelite unit in which the unit has
fullwidth top and bottom frame parts, and
an internal post or posts separating sidelites
from the door panel.
Core: The center section or part of a door or
door part.
Corner Plug, Corner Seal Pad: A small
part, usually made of resilient material, used
to seal water which gets beyond the bottom
ends of weatherstrip in doors, from getting
between the door edge and the jambs, adja-
cent to the bottom gasket.
Cove Molding: A small molded wood lineal
piece, usually formed with a scooped face,
used to trim and fasten a panel of some type
into a frame.
Crossbore: A large through-hole, near the
edge of a door panel, usually 2-1/8 inch in
diameter, which houses a cylinder lockset or
deadbolt latch.
Cylinder Lock, Cylindrical Lock: Lock
hardware which mounts into a door which
has been prepared with a bored hole or
holes through the face, and into the edge.
Dado: A machined or sawn groove, across
the width of a part.
Deadbolt: A latch used to secure a door
closed, the latch being driven from the door
into a receiver in the jamb or frame.
Deflection: The distance a door has moved
away from its closed and latched position,
usually measured at the top unsupported
latch-side corner. Deflection may be caused
by wind pressure or heat. Deflection is tem-
porary. The door returns to position when
the force is removed.
Desiccant: Moisture absorbing material
used inside the spacer in an insulated glass
assembly, so as to control moisture levels
and prevent moisture from frosting or con-
densing on the inside glass surfaces of the
insulated unit.
Doorlite: An assembly of frame and glass
panel, which when fitted to a door in a
formed or cut-out hole, creates a door with a
glass opening.
Double-Glazed: Outfitted with two panes of
glass with a sealed airspace between.
Drip Strip: In exterior doors, a fitting used
across the outside face of the door adjacent
to the bottom edge, to divert cascading rain
away from the door bottom edge and away
from the door/sill joint.
Drywall Opening: A rectangular opening
in a wall, usually an interior wall, prepared
to the size necessary to receive a pre-hung
assembly.
DSB Glass: A term no longer used in
the glass business, which meant “Double
Strength, ‘B’ quality.” DSB glass when fur-
nished by Therma-Tru in doors, is 1/8 inch
thick, single pane and not insulated.
Dummy Cylinder: A lock without a latch,
typically used for the passive door panel of
a double door unit, so that the hardware ap-
pears equal to that used on the active panel.