Dist1:

This represents the distance, measured from the left end of the beam, to the beginning of a line load.

Dist2:

This represents the distance, measured from the left end of the beam, to the end of a line load.

DL1:

This represents the magnitude of the dead load at Dist1.

DL2:

This represents the magnitude of the dead load at Dist2.

LL1:

This represents the magnitude of the unreduced live load at Dist1.

LL2:

This represents the magnitude of the unreduced live load at Dist2.

RedType:

This represents the type of live load reduction used on the beam based on the currently selected building code. "Red" indicates that the live load is Reducible, and can be reduced by the percent shown. "Roof" indicates that the live load is a Roof load, and can be reduced by the percent shown. "NonRed" indicates that the live load is non‑reducible. "Storage" indicates that the live load is a storage live load. "Snow" indicates that the live load is an unreducible roof snow load.