R804.3.1.2 Ceiling Joist Bearing Stiffeners
Where required in Tables R804.3.1.1(1) through R804.3.1.1(8), bearing stiffeners shall be installed at each bearing support in accordance with Figure R804.3.1.1(2). Bearing stiffeners shall be fabricated from a C-shaped or track member in accordance with the one of following:
- 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.