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Unread 01-22-2019, 11:54 PM   #46
Veteran DIYer- Schluterville Graduate

STAR Senior Contributor

Join Date: Jul 2004
Location: Nashua, NH
Posts: 13,268
The majority of the strength is in the top and bottom of the board...the middle just holds them in place. AN I-joist is an extreme example of that effect, which is why you don't want holes near the edges. I would use smaller diameter fasteners and keep them away from the edges so you're cutting the minimum number of strands of the wood in those critical edge areas.
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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