R804.3.1.2 Ceiling Joist Bearing Stiffeners
- C-shaped bearing stiffeners shall be a minimum 33 mils (0.84 mm) thick.
- Track bearing stiffener shall be a minimum 43 mils (1.09 mm) thick.
The minimum length of a bearing stiffener shall be the depth of member being stiffened minus 3/8 inch (9.5 mm). Each stiffener shall be fastened to the web of the ceiling joist with a minimum of four No. 8 screws equally spaced as shown in Figure R804.3.1.1(2). Installation of stiffeners shall be permitted on either side of the web.