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Unread 01-11-2021, 04:57 PM   #9
jadnashua
Veteran DIYer- Schluterville Graduate

STAR Senior Contributor

 
Join Date: Jul 2004
Location: Nashua, NH
Posts: 14,639
Drywall is definitely stronger along the long side, as is plywood. Take a sheet of paper or newsprint and try to tear it. Then, try turning 90-degrees and tear it again...they align the fibers along the long length. Now, how much different, I've not measured it. This article says it is 3x stronger when run horizontally across the studs versus vertically. https://www.thisisdrywall.com/?p=448 Sounds like a viable reason to do it that way to me!
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Jim DeBruycker
Not a pro, multiple Schluter Workshops (Schluterville and 2013 and 2014 at Schluter Headquarters), Mapei Training 2014, Laticrete Workshop 2014, Custom Building Products Workshop 2015, and Longtime Forum Participant.
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