cantilever
KAN-tih-lee-ver
/ˈkæn.tɪˌliː.vər/
A long projecting beam or girder fixed at only one end, used to support a bridge, balcony, or structure.
Implies a dramatic architectural overhang anchored securely at one side while floating freely on the other.
The story behind the word. First recorded in 17th-century carpentry, the term combines 'cant' (an old word for slope, notch, or angle) and 'lever'. Builders used horizontal bracket projections to support overhanging upper stories in timber-framed structures before steel allowed dramatic modern cantilevered spans.
Word relationships
- overhang: Overhang is a general description of anything extending beyond a support, while cantilever is a technical engineering term for an anchored single-ended beam.
- bracket: A bracket is a small wall support, whereas a cantilever can span massive distances structural lengths.
Commonly confused with
- joist: A joist is a horizontal beam supported at both ends to carry floor or ceiling loads.
Word family
- cantilevered (adjective): Constructed using projecting cantilever structures.
Collocations
- cantilevered balcony
- cantilever bridge
- overhanging cantilever
- steel cantilever
Example sentences
- "Frank Lloyd Wright's Fallingwater features spectacular concrete cantilevers extending directly over a natural waterfall." Modernist Architecture
- "The modern stadium roof was designed as a massive cantilever, protecting spectators without blocking sightlines with interior poles." Civil Engineering
Memory hook
Can-it-lever? Yes, like a lever anchored on one side holding up weight in mid-air. Cantilever = One-end supported overhang.
When not to use
Do not use for beams supported on both sides by pillars.
Fun facts
- Cantilevers rely heavily on internal tension along the top of the beam and compression along the bottom to keep from snapping under gravity.
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