Joist

Joist

Joist (/dʒɔɪst/) is a term used in the field of construction and architecture to refer to a horizontal structural element that is used in framing to span an open space, often between beams that subsequently transfer loads to vertical members.

Etymology

The term 'joist' is derived from the Old French word 'giste' and the Latin word 'jacitum', which means 'to lie'. It was first used in English in the 14th century.

Related Terms

• Beam: A structural element that primarily resists loads applied laterally to the beam's axis.
• Load-bearing wall: A wall that bears the weight of the house above said wall.
• Truss: A structure that consists of two-force members only.
• Girder: A large beam that frames into a column on each end and supports the beams framing into it.
• Rafter: One of a series of sloped structural members that extend from the ridge or hip to the wall plate, downslope perimeter or eave, and that are designed to support the roof deck and its associated loads.

See Also

• Construction
• Architecture
• Structural engineering

External links

• Medical encyclopedia article on Joist
• Wikipedia's article - Joist

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