WAC 296-150C-0920. Design load deflection

When a structural assembly is subjected to total design live loads, the deflection for structural framing members must not exceed the following: L = The clear span between supports or two times the length of a cantilever. Floor L/240 Roof and ceiling L/180 Headers, beams, girders L/180 Walls and partitions L/180 Floor L/240 Roof and ceiling L/180 Headers, beams, girders L/180 Walls and partitions L/180