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Structural

Cantilever

In Plain English

A beam or slab that sticks out from a wall or support with no column at the free end.

Definition

A structural member that projects beyond its support and is anchored only at one end. Cantilevers rely on bending resistance at the fixed support to carry loads applied along the projecting portion. They are commonly used for balconies, overhanging roofs, and bridge decks.

Example

The second-floor balcony cantilevers 6 feet beyond the exterior wall, supported by steel moment connections at the building frame.

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