cantilever

noun cantilever

• girder — a large beam, as of steel, reinforced concrete, or timber, for supporting masonry, joists, purlins, etc.
• scaffolding — a temporary structure for holding workers and materials during the erection, repair, or decoration of a building.
• joist — any of a number of small, parallel beams of timber, steel, reinforced concrete, etc., for supporting floors, ceilings, or the like.
• shaft — a long pole forming the body of various weapons, as lances, halberds, or arrows.
• pillar — an upright shaft or structure, of stone, brick, or other material, relatively slender in proportion to its height, and of any shape in section, used as a building support, or standing alone, as for a monument: Gothic pillars; a pillar to commemorate Columbus.