W16x31 W16x31 Wide-flange shape W410x46.1 I 46.133 403.86 140.462 11.176 6.985 10.211 5894 46.2692 156574594 775390 887512 162.9856 5176085 73701 115421 29.6339 174055 199539025062 1.3381 Pending verification – nominal dimensions entered by the application developer ASTM A6/A6M and AISC Shapes Database (W-shapes) 2026-10-12 UNVERIFIED Dimensions converted from the inch values of the AISC shapes database (d, bf, tw, tf, kdes; root radius = kdes − tf). Nominal weight 31 lb/ft. Verify against ASTM A6/A6M and the AISC Steel Construction Manual before design use. popular