Illustration of joist
- J joist
: any of the small timbers or metal beams ranged parallel from wall to wall in a structure to support a floor or ceiling
Examples of joist in a Sentence
Recent Examples on the Web
Rough carpenters must install floor joists with minimal or no crown.
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Tim Carter, Hartford Courant, 6 June 2026
Seal Foundation Cracks Search for cracks in the house's foundation and along the rim joist.
—Lee Wallender, The Spruce, 18 May 2026
Throughout the pavilion, lengths of photographic film are suspended from steel joists whose structure echoes that of the lotus root.
—Luisa Zargani, Footwear News, 6 May 2026
Discolored Wood Leaks and moisture will discolor floor joists and framing in basements.
—Brandee Gruener, Southern Living, 30 Apr. 2026
See All Example Sentences for joist
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Tim Carter, Hartford Courant, 6 June 2026
Seal Foundation Cracks Search for cracks in the house's foundation and along the rim joist.
—Lee Wallender, The Spruce, 18 May 2026
Throughout the pavilion, lengths of photographic film are suspended from steel joists whose structure echoes that of the lotus root.
—Luisa Zargani, Footwear News, 6 May 2026
Discolored Wood Leaks and moisture will discolor floor joists and framing in basements.
—Brandee Gruener, Southern Living, 30 Apr. 2026
See All Example Sentences for joist
Cite this Entry
“Joist.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/joist. Accessed 17 Jun. 2026.
Copy CitationKids Definition
joist
noun
: a small beam laid crosswise to support a floor or ceiling
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