Glossary C

Cased Opening-

An interior opening without a door but finished with jambs and casing.

Casement Window-

A window in which the frame is built in such a way that the sash can open out like a door when installed in a window unit. Historically, casements were the first working windows. These windows were strategically placed throughout a house to capture breezes and direct them through the rooms. Screens were placed internally to prevent bugs and dirt from entering the house.

Casing-

Molded or surfaced four-sided wood pieces of various widths and thicknesses, used for trimming door and windows openings. A casing may be classifies as exterior or interior as far as window and exterior door frames are concerned.

Cavetto-

A simple concave moulding; a cove.

Chair Rail-

An interior moulding usually applied about on third the distance from the floor, paralleling the base moulding and encircling the perimeter of a room. Originally used to prevent chairs from marring walls. Used today is as a decorative element or a divider between different wall covering such as wallpaper and paint or wainscoting.

Champher Strip-

A triangular moulding often used in concrete forming work.

Check Rail-

In double-hung windows, this is the bottom rail of the upper sash and the upper rail of the lower sash, where the lock is mounted. It is also known as a Meeting Rail.

Checking-

Another term for splitting or cracking.

Circlehead-

A generic term referring to any of a variety of window units with one or more curved frame members, often used over another window or door opening.

Cladding-

Aluminum or vinyl material attached to the outside of a window which creates a more durable, long lasting window. Cladding is factory applied in many colors and does not require painting.

CLF-

Abbreviation for "hundred lineal feet."

Condensation-

Moisture of humidity in the air that forms on a cool surface such as a pane of glass. When moist air comes in contact with a cool surface it shrinks. If it shrinks enough to reach 100% humidity or the dew point, moisture will form on the cool surface. This is demonstrated when the outside of a glass of ice tea sweats.

Coping-

Carpentry process by which a moulding such as a crown is sawn on the adjourning end to fit over the face profile of the second member. Used where mouldings join at 90-degree angles on a wall or ceiling installation.

Core-

The center of plywood or crossbanded construction; it may consist of lumber (solid or glued), particle board or veneer. Also core unit; innermost layer in veneered door construction.

Corner Guard-

Outside corner guard is used to protect corners or to cover the ragged edge where wall covering and painted surfaces meet at an outside corner. Inside corner guard covers uneven joints or ragged lines where wallpaper, paneling or other covering materials meet with painted or contrasting surfaced walls at an inside corner.

Cornice-

Exterior trim used at juncture of outside wall and roof. Also describes interior trim used where walls and ceiling meet (crown, cove, bed moulding).

Cove-

A moulding with a concave profile used at corners, particularly as a ceiling cornice. Small coves may be used as inside corner guard.

Cove and Bead-

A molding profile consisting of a cove and a bead; also called cove with a bead; glass bead or stop.

Crown/Beds-

Most often used where walls and ceiling meet. Crown mouldings are used to cover larger angles. Crowns are always "sprung" while beds are either "sprung" or plain. A "sprung" moulding has the interior corner beveled off to better fit a right angle joint.

Cut-Off Line-

In the finger-jointing process, the area where defects are cross cut away from shop lumber after it has been ripped.

Cut Stock-

Small pieces of surfaced, partially worked or rough lumber in specified sizes suitable for further manufacture into millwork products.

Cutter Head-

Fitted with moulding knives, cutter heads are installed in a moulder where they rotate at high speeds to shape the moulding profiles.