qwert wrote:
what year did they make the first sheetrock?

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Posted via Homerepairlive.com
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Drywall was first patented in 1917 by the USGypsum company.

From their website:

The company patented the world's first drywall panel - the
SHEETROCK Brand panel - in 1917. Following years of
refinement, these gypsum panels revolutionized home building
techniques during the 1940s and 1950s by providing an
economical alternative to conventional plaster wall
construction. Their development enabled builders to meet an
unprecedented demand for new, affordable homes during the
post-World War II housing boom.

--
Robert Allison
Rimshot, Inc.
Georgetown, TX