X0306 4 2017-10-23 false 0000022444 COMMERCIAL METALS CO CMC 0001047461 ALVARADO JOSEPH 6565 N. MACARTHUR BLVD, SUITE 800 IRVING TX 75039 true false false false Common Stock 2017-10-23 4 A false 173979 0 A 1159041 D Common Stock 2017-10-23 4 A false 89604 0 A 1248645 D Common Stock 2017-10-23 4 A false 55794 0 A 1304439 D Common Stock 2017-10-23 4 F false 72985 21.61 D 1231454 D Common Stock 2017-10-23 4 F false 37589 21.61 D 1193865 D Common Stock 2017-10-23 4 F false 23406 21.61 D 1170459 D Represents the settlement of previously reported performance shares granted on October 27, 2014. The performance shares vested above target. By: Danna K. Cary For: Joseph Alvarado 2017-10-25