Tim Weller of Allegion sent me today’s Fixed-it Friday photos of a fire door assembly.  Most of you will remember that NFPA 80 allows the use of STEEL shims when shimming a door so the assembly complies with the clearance requirements of the standard.  If you’re not familiar with shimming practices, there are complete instructions in this article from Laura Frye Weaver called ‘The Art of Shimming a Door.’

It looks like this installer wasn’t aware of the requirements of NFPA 80…

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