9.10.16.1. Required Fire Blocks in Concealed Spaces

 9.10.16.1. Required Fire Blocks in Concealed Spaces

The framing of an opening for #stairs through a wood joist floor normally requires a #framing member for structural integrity at the top and bottom of each #stairway and, in so doing, provides a fire block as seen in Figure 9.10.-34.

Quoted from Illustrated Users' Guide - NBC2015

#fireblock #concealedspace #woodjoist