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bar joist

a welded steel joist having an open web consisting of a single bent bar running in a zigzag pattern between horizontal upper and lower chords. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for bar joist
  • Only one end of the bar joist he was working on had been welded.
  • Roof construction consists of steel framing with bar joist and steel roof decking.
  • Remove materials, sound roof for rafters or bar joist, then cut decking and remove.
  • The roof structure is usually lightweight steel bar joist or metal deck roof.
  • At locations with bar joist construction, cable may be pulled through and secured to the bar joists.

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