Labor Code section 7104


If a span of a floor on a building exceeds 13 feet, an intermediate beam shall be used to support the temporary flooring, but spans not to exceed 16 feet may be covered by three-inch planks without an intermediate beam. The intermediate beam shall be of a sufficient strength to sustain a live load of 50 pounds per square foot of the area supported.

Source: Section 7104, https://leginfo.­legislature.­ca.­gov/faces/codes_displaySection.­xhtml?lawCode=LAB§ionNum=7104.­ (updated Jan. 1, 1970; accessed Jul. 28, 2025).

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Verified:
Jul. 28, 2025

§ 7104's source at ca​.gov