Carpentry Glossary - M

Glossary Index

Major Module: unit of measure for modular construction. Equivalent to 48 inches or 1200 millimeters in length.

Mallet: a kind of hammer, usually of wood, smaller than a maul or beetle and usually with a relatively large head. Can be made of rubber, wood or lead.

Carpentry Glossary - L

Glossary Index

Lacquer: a clear or coloured varnish that dries by solvent evaporation and often a curing process as well that produces a hard, durable finish, in any sheen level from ultra matte to high gloss and that can be further polished as required. More durable than shellac.

Lally Column: cylindrical steel member for supporting beams and girders. Can be filled with concrete sometimes.

Carpentry Glossary - K

Glossary Index

Kerf: the width of the cut of a saw blade. On most saws the kerf is wider than the saw blade because the teeth are flared out sideways. Also refers to the area of a cut made by a saw.

Kerfing: saw cuts or grooves that are longitudinal and of varying depths, depending on the wood piece's thinkness. Made on the unexposed surfaces of millwork to relieve stress and avoid warpage. Also used to facilitate bending wood.

Carpentry Glossary - J

Glossary Index

Jack Rafter: short rafter framing between a hip rafter and the wall plate; also a hip or valley rafter and ridge board.

Jalousie: a window which consists of parallel glass, acrylic, or wooden louvers set in a frame. The louvers are locked together onto a track, so that they may be tilted open and shut in unison, like a Venetian blind, to control airflow through the window. They are usually controlled by a crank mechanism.

Jamb: the top and two sides in a window or door frame that contact the sash or door. The word "jamb" comes from the French "jambe", meaning "leg".

Carpentry Glossary - I

Glossary Index

I-Beam: steel beam having a cross section with ninety degree flanges on top and bottom, resembles a letter I shape.

Ice Dam: an ice accumulation along the eave and in the gutter. Snow that melts later cannot drain properly through the ice on the eave and in the gutter, causing problemas such as leaking roof, rotting timber and stained plaster or drywall.

ID: abbreviation for Inner Diameter, the measurement of an interior hole in a work piece, as opposed to the outer diameter, for example when specifying a washer size.