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R802.6 Bearing
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The ends of each rafter or ceiling joist shall have not less than 11/2 inches (38 mm) of bearing on wood or metal and not less than 3 inches (76 mm) on masonry or concrete. The bearing on masonry or concrete shall be direct, or a sill plate of 2-inch (51 mm) minimum nominal thickness shall be provided under the rafter or ceiling joist. The sill plate shall provide a minimum nominal bearing area of 48 square inches (30 865 mm2).
If the finished ceiling material is installed on the ceiling prior to the attachment of the ceiling to the walls, such as in construction at a factory, a compression strip of the same thickness as the finished ceiling material shall be installed directly above the top plate of bearing walls if the compressive strength of the finished ceiling material is less than the loads it will be required to withstand. The compression strip shall cover the entire length of such top plate and shall be not less than one-half the width of the top plate. It shall be of material capable of transmitting the loads transferred through it.
Related Code Sections
2308.4.2.2 Wood, Bearing
The ends of each joist shall have not less than 1 1 / 2 inches (38 mm) of bearing on wood or metal, or not less than 3 inches (76 mm) on masonry ...
Los Angeles Building Code > 23 Wood > 2308 Conventional Light-Frame Construction > 2308.4 Floor Framing > 2308.4.2 Floor Joists > 2308.4.2.2 Bearing
2308.4.2.2 Wood, Bearing
The ends of each joist shall have not less than 1 1 / 2 inches (38 mm) of bearing on wood or metal, or not less than 3 inches (76 mm) on masonry ...
Los Angeles Building Code > 23 Wood > 2308 Conventional Light-Frame Construction > 2308.4 Floor Framing > 2308.4.2 Floor Joists > 2308.4.2.2 Bearing
R502.6 Floors, Bearing
The ends of each joist, beam or girder shall have not less than 1 1 / 2 inches (38 mm) of bearing on wood or metal and not less than 3 inches (76 mm ...
R502.6 Floors, Bearing
The ends of each joist, beam or girder shall have not less than 1 1 / 2 inches (38 mm) of bearing on wood or metal, have not less than 3 inches ...
R802.6 Roof-Ceiling Construction, Bearing
The ends of each rafter or ceiling joist shall have not less than 1 1 / 2 inches (38 mm) of bearing on wood or metal and not less than 3 inches (76 ...
Los Angeles Residential Code > 8 Roof-Ceiling Construction > R802 Wood Roof Framing > R802.6 Bearing