Glossary of Terms

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Glossaries

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Term Definition
L-reinforcement

A member that is attached to a structural framing member such that the cross-section of the two adjoined members forms an el.

Lag-Bolts

Large, heavy screws, used where great strength is required, as in heavy framing or when attaching ironwork to wood.

Lapped purlins

Two non-recessed purlins (i.e., purlins-on-edge, purlins-laid-flat, or notched purlins) that bypass each other where they are connected to the same truss/rafter.

Lean-to

A small addition with a single-pitched roof.

Ledger

A piece of wood which is attached to a beam to support joists.

Light wood truss

A truss manufactured from wood members whose narrowest dimension is less than 5 nominal inches. Wood members include solid-sawn lumber, structural composite lumber, and glulams. Members may be connected with metal connector plates (MCP), bolts, timber connectors, and screwed- or nailed-on plywood gusset plates.

Lintel

The top piece over a door or window which supports walls above the opening.

Lookout

A short member in an eave overhang that connects the sub-fascia and wall. Generally used to support soffit. Unlike a rafter extension, a lookout is not used to structurally support purlins or eave sub-fascia.

Lot Line Change, Adjustment

The alteration, movement, or shifting of a lot line for an existing lot.

Lot Line Creation

The initial establishment of a lot line for a new lot.      

Louver

An opening with horizontal slats to permit passage of air, but excluding rain, sunlight and view.

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