Relevant STAAD.Pro model (.std file) can be downloaded from the following link:
STAAD.Pro model for AISC 360-10 verification example
Overall Dimension (D) = 1500mm
Flange width (Bf) = 250mm
Flange thickness (tf) = 30mm
Thickness of Web (tw) = 15mm
h= 1500-2*30 = 1440mm