Meaning & use
Lally
Last updated
A hollow steel column filled with concrete, used to support beams or floors in construction; short for "lally column."
See it in a sentence
Workers installed a lally in the basement to reinforce the sagging beam.
The inspector checked whether the lally columns met code.
A note on using this word
The term comes from the Lally Column Company, which patented the design in the early twentieth century before it became a generic term in construction.
Words with a similar meaning
lally column
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