The Dictionary.
Standardizing the lexicon of Canadian finish carpentry. Precise definitions for homeowners, architects, and contractors.
Technical Note
A shared vocabulary helps describe the scope. Pair the terms with measurements, reference photos and the provider’s written interpretation; terminology does not guarantee bid accuracy.
Back-Banding
An additional molding attached to the outer edge of a casing to add depth, scale, and a more ornate profile to doors or windows.
Base Shoe
A small, flexible molding (usually 1/2" x 3/4") paired with baseboards to cover floor gaps. Check the flooring manufacturer’s perimeter clearance and attachment instructions.
Biscuit Joiner
A specialized power tool that cuts crescent-shaped slots for wooden "biscuits" which reinforce and align miter joints.
Brickmold
A thick, durable exterior casing used to seal the transition between a door or window frame and the exterior cladding (brick, siding, or stone).
Coping
An inside-corner technique in which one board follows the profile of the adjoining board. Fit, movement and finishing still require attention.
Frieze Board
A horizontal exterior board installed flat against the wall, usually under the soffit, acting as a decorative transition to the siding.
Jamb Extension
Wood strips added to the edge of a window or door frame to make it flush with the thickness of a modern drywall/stud assembly.
Laser Level
A reference tool for checking alignment. Confirm calibration and decide how the trim should relate to uneven existing walls and ceilings.
Miter Lock
A specialized router bit cut used to create interlocking 45-degree joints, primarily in high-end cabinetry and column wraps.
Planing
Using a hand or power tool to shave thin layers of wood, ensuring a flush fit between two uneven trim surfaces.
Plinth Block
A decorative block at the base of a door casing where the baseboard meets the casing. It prevents the need for complex profile transitions.
Polyurethane
A synthetic high-density foam material used for massive or complex crown profiles where wood would be too heavy or prone to cracking.
Rabbeting
Cutting an L-shaped groove along the edge of a board, typically used to inset panels or join two boards at a corner.
Rake Board
An exterior trim board that follows the slope of the roof on a gable end, protecting the edge of the roof deck.
Scarf Joint
Joining two pieces of trim end-to-end using overlapping 45-degree cuts. Joint angle, backing, fastening and finishing affect the visibility of the seam.
Shadow Gap (Reglet)
A modern trim technique using a recessed channel (often aluminum) at the floor or ceiling to create the illusion of a floating wall.