Roof loads are 125% of floor loads unless limited by other criteria. Floor loads may be adjusted for load durations according to the code provided they do not exceed those in the roof column.
Allowable loads assume a carrying member width of 5 1/2".
Specify H dimension.
Triangle Theory: Some code jurisdictions allow only half of the top-flange bearing area to be considered when performing a top-flange hanger calculation, as there is non-uniform stress under the top flange (presumed to be a triangular-shaped distribution). Therefore, loads are published above using the calculated "Triangle Theory." Loads are also published in the "No Triangle Theory" columns, which are based on calculations assuming full bearing on the top flange which do not exceed the tested value with a reduction factor of 3.