Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We consent to the incorporation by reference in the Registration Statements (Form S-8 No.
333-38729, Form S-8 No. 33-89126 and Form S-8 No. 33-54484) pertaining to the 1989 Stock Option
Plan of Encore Wire Corporation and the Registration Statement (Form S-8 No. 333-86620) pertaining
to the 1999 Stock Option Plan of Encore Wire Corporation, of our reports dated March 10, 2006, with
respect to the consolidated financial statements of Encore Wire Corporation, Encore Wire
Corporation management’s assessment of the effectiveness of internal control over financial
reporting, and the effectiveness of internal control over financial reporting of Encore Wire
Corporation included in this Annual Report (Form 10-K) for the year ended December 31, 2005, filed
with the Securities and Exchange Commission.
Dallas, Texas
March 10, 2006
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