Fire Blocking

33mil, 43mil or 54mil Fire Blocking System

ClarkDietrich’s Fire Blocking is specifically designed to meet the requirement of horizontal fire blocking inside the wall system and between floor levels. Fire Blocking system simply installs by twisting into stud flanges and screwing into stud webs. The one piece preformed assembly eliminates cutting, notching and attaching clips.

  • Installs quickly and easily without clips
  • Available for 16" and 24" stud spacing
  • Three available widths
  • Available in 33mil (20ga), 43mil (18ga) or 54mil (16ga)
  • Pre-notched for use on structural studs




Product Data & Ordering Information:

33mils (20ga STR)         0.0346” design thickness, 0.0329” minimum thickness
43mils (18ga)   0.0451” design thickness, 0.0428” minimum thickness
54mils (16ga)   0.0566” design thickness, 0.0538” minimum thickness
Yield Strength:     33ksi for 33mils & 43 mils, 50ksi for 54mils
Coating: CP60


Horizontal leg: 1”
Connection tabs: Top: 2”, Bottom: 1-1/2”
Width: 3-5/8”, 4” or 6”
Lengths: For 16" and 24”o.c stud spacing

ASTM & Code Standards: