Joist
noun
A long piece of wood, metal, or concrete that supports a floor, ceiling, or roof of a building.
The joists on the ceiling of the basement were exposed.
Often appears as...
- ceiling joist
- floor joist
verb
To provide a floor or ceiling with joists.
The construction workers are planning to joist the basement ceiling tomorrow.
Often appears as...
- joist a ceiling
- joist a floor
noun
A long piece of wood, metal, or concrete that supports a floor, ceiling, or roof of a building.
The joists on the ceiling of the basement were exposed.
Often appears as...
- ceiling joist
- floor joist
verb
To provide a floor or ceiling with joists.
The construction workers are planning to joist the basement ceiling tomorrow.
Often appears as...
- joist a ceiling
- joist a floor
Definition 1 of 2
Pro Tip 1/3Construction Talk
Used in construction contexts, 'joist' is technical and may not be understood outside this field.
The architect specified steel joists for the commercial building's framework.
Pro Tip 2/3Part of Structures
'Joist' usually refers to one of several horizontal supports in building structures.
Each wooden joist helps support the weight of the furniture above.
Pro Tip 3/3Hidden Elements
Joists are not typically visible once a building is completed, as they are covered by flooring or ceiling materials.
After the drywall was installed, you couldn't see the joists anymore.
Compare with
beambraceframeworkgirderplankraftersupporttimbertruss
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