EXHIBIT 99.7 CONSENT OF INDEPENDENT REGISTERED CERTIFIED PUBLIC ACCOUNTING FIRM We hereby consent to the use in this Annual Report on Form 40-F and in the Registration Statement on Form S-8 (No. 333-109970) of our report dated March 8, 2006 relating to the consolidated financial statements of Gerdau Ameristeel Corporation, filed as part of this Annual Report on Form 40-F. /s/ PricewaterhouseCoopers LLP Tampa, Florida March 8, 2006