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Interior Trim Term Crown Moulding
Crown moulding is a decorative trim installed
where the ceiling meets the wall. Crown
moulding comes in different sizes and can
be installed as one piece or as multiple
pieces with other pieces of trim.
Interior Trim Term Cove Mould
This a type of moulding that depending on
the size can be used as a crown moulding
or as an inside corner moulding. This type
moulding as with other pieces of trim can
be used as a single piece of trim or as part
of multiple piece trim detail.
Interior Trim Term Shoe Mould
Shoe moulding is a small piece of trim set
tight against the floor and applied to the
base. This is normally only done when the
flooring is ceramic, vinyl, or wood
Interior Trim Term Window Stool
Window Stool refers to trim piece that is cut
and nailed in place in the window sill. A
window stool is normally wood and is
usually cut out of a 1 x 6 piece of wood.
Interior Trim Term Base Moulding
Base is trim moulding that is installed at the
bottom of the wall where the wall meets the
floor. Base will be held up above the floor
depending the floor covering. Normally with
carpet the base is installed 1/2 inch above
the floor
Interior Trim Term Mitre Joint
Mitre joint refers to the joint formed by
putting two pieces of trim together. If the trim
is cut on a 45 degree angle and applied to a
piece of trim that is cut on the opposite 45
degree angle, the joint is called a mitre joint.
Interior Trim Term Casing
Casing is a type of trim moulding used to
trim out windows and doors. This trim is
called door casing or window casing
depending on the application. Casing will
come in different sizes and profiles. Two
poplar casing are colonial and tear drop
Interior Trim Term Window Apron
Window apron is the trim piece that is
installed under the window stool. This can
be a piece of base or casing turned upside
down and installed up against the bottom of
the window stool.
Category Construction Glossary
Types of wood used in interior trim:
LDF Light-Density Fibreboard
MDF Medium-Density Fibreboard
Pine and FJP Finger-Jointed Pine
Clear Spruce
Knotty Pine
Birch
Maple
Oak
Astragal a symmetrical moulding used in
creating panels and horizontal banking in
cornice, wainscoting, and pilaster
assemblies.
Back band used to create extra depth for
casings, allowing thicker mouldings to be
butted against the casing.
Jamb: the side and top of a door or window
opening.
Base block a profiled block at the base of a
doorway, thicker than the casing and the
baseboard, which serves as a base for the
end of the casing to sit upon and for the
baseboard to butt against.
Keystone a decorative block set in the
center of a door or window header treatment.
Base cap a moulding used in conjunction
with a flat baseboard to add height and
detail.
Base corner block a small upright block
used to eliminate the need for mitering both
inside and outside corners in baseboards.
Mantle a ledge usually applied above a
fireplace, but also above doorways and
window openings.
Stop a small moulding used to stop a door
when closed (door stop).
Flat stock stock cut flat on all sides, having
no profile or decoration.
Style a vertical framing member in a frame
and panel system.
Flutes hollows or grooves cut lengthwise in
a moulding.
Wainscoting an assembly of mouldings
used on the lower 30" to 48" of a wall.
Medium Density Fibreboard a
re-manufactured wood product created by
bonding wood fibres together, resulting in a
flexible, grain-free wood.
Built-up mouldings any combination of
mouldings used in place of a single type of
moulding.
Cap a moulding used to finish the top of
wainscoting, door and window headers,
and built-up moulding assemblies.
Mullion a moulding to bridge the joint
between two windows set closely together.
Capital the upper-most part of a column,
usually very decorative.
Panel moulding mouldings used with flat
stock to create framed panels. Sometimes
used alone to create panels on a flat
surface.
Pilaster a flat vertical assembly, frequently
fluted, with a capital and base used against
a wall to create a column effect.
Chair rail a moulding applied horizontally
to a wall approximately 36" to 48" from the
floor.
Rail a horizontal framing member in a
frame and panel system.
Column an upright support with a
decorative capital and base.
Reveal the amount of door or window jamb
left exposed after installing casing.
Corner block a block used to eliminate
the need for a miter joint at the top corners
of doors and windows.
Shell corner a corner block with a
rounded outside edge.
Dentil a moulding with repeated square or
rectangular blocks used as part of a
built-up cornice assembly.