The following information deals with changes from the 2012 International Residential Code to the 2015 International Residential Code.
The 2015 International Residential Code (R403.1.6) now requires anchor bolts to be located within the middle third of the width of the plate. Additionally, this section of the 2012 IRC contained three exceptions for the foundation anchorage. The 2015 code only contains two exceptions, as the exception for equivalent anchorage to anchor bolts has been moved into the main body of the text. The new language allows for approved anchors or anchor straps.
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