EXHIBIT 99.2 CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report of Encore Wire Corporation (the "Company") on Form 10-K for the annual period ended December 31, 2002 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Frank J. Bilban, Vice President - Finance of the Company, hereby certify pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge: (1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and (2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. ENCORE WIRE CORPORATION Date: March 21, 2003 By: /s/ FRANK J. BILBAN ------------------------------------------- Frank J. Bilban Vice President - Finance (principal financial and accounting officer)