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Openings: Jambs, Sills, Lintels and Arches
Geometrical and Building Drawing · Chapter 5 · Building details
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- Jambs: plain, splayed and rebated (recessed) jambs; reveals
- Sills: brick-on-edge, stone and concrete sills; weathering and throating
- Lintels: timber, stone, steel and reinforced concrete lintels; bearing on walls; chajja (sunshade)
- Arches: terms (springing, voussoir, keystone, intrados, extrados, span, rise, skewback) and types (flat, segmental, semicircular, relieving)