Assumptions

The following basic assumptions are incorporated in RedSpec™:

• All product designs are intended for use in permanent construction of buildings designed in accordance with current building codes. For additional information see Application Limitations.

• Loads in combination are factored depending on building code and member type. See Load Combinations for a complete description.

• Serviceability requirements are based on deflection ratios. Vibrations are considered for Red-I™ joists at the user's option. See Floor Performance.

• Specific code provisions for area reductions of live loads have not been made. It is the user's prerogative to reduce loads as allowed by code.

• No provisions are provided for scarf-cut or bevel-cut LVL or I-joists. See the appropriate RedBuilt™ design guide.

• All designs are based on dry, non-corrosive conditions of use, untreated products, normal temperatures, and adequate end connections and lateral support. For additional information see Environmental and Treatment Limitations.

• Slenderness (buckling) is considered. See Lateral Support and the maximum unsupported length options on the Spans tab.

•  RedSpec™ automatically adds glulam and LVL beam weight in addition to input dead load. I-joist and open-web truss self-weights are not added to input dead loads and are assumed to be part of the input dead load.

• All I-joist and rectangular sections are limited to constant depth without notches.