Exhibit 23

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statement No. 33-60809, No. 333-61379 and No. 333-144500 on Form S-3 and Registration Statement No. 033-61073, No. 033-61075, No. 333-27967 and No. 333-42648 on Form S-8 of our reports dated October 29, 2007, relating to the financial statements of Commercial Metals Company and subsidiaries, and the effectiveness of Commercial Metals Company and subsidiaries’ internal control over financial reporting, appearing in the Annual Report on Form 10-K of Commercial Metals Company for the year ended August 31, 2007.

/s/ Deloitte & Touche LLP
Dallas, Texas
October 29, 2007

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