EXHIBIT 11 Boise Cascade Corporation Computation of Per Share Earnings Three Months Ended March 31 _______________________ 1999 1998 _________ _________ (expressed in thousands, except per share amounts) Net income (loss) as reported, before cumulative effect of accounting change $ 16,153 $ (450) Preferred dividends (3,490) (5,061) Excess of Series F Preferred Stock redemption price over carrying value - (3,958) _________ _________ Basic income (loss) before cumulative effect of accounting change 12,663 (9,469) Cumulative effect of accounting change - (8,590) _________ _________ Basic income (loss) $ 12,663 $ (18,059) ========= ========= Basic income (loss) before cumulative effect of accounting change $ 12,663 $ (9,469) Preferred dividends eliminated 3,490 3,620 Supplemental ESOP contribution (2,983) (3,094) _________ _________ Diluted income (loss) before cumulative effect of accounting change 13,170 (8,943) Cumulative effect of accounting change - (8,590) _________ _________ Diluted income (loss) $ 13,170 $ (17,533) ========= ========= Average shares outstanding used to determine basic income (loss) per common share 56,369 56,242 Stock options, net 235 242 Series D convertible preferred stock 4,276 4,461 _________ _________ Average shares used to determine diluted income (loss) per common share 60,880 60,945 ========= ========= Net income (loss) per common share Basic income (loss) before cumulative affect of accounting change $ .23 $ (.17) Cumulative affect of accounting change - (.15) ______ ______ Basic net income (loss) per common share $ .23 $ (.32) ====== ====== Diluted income (loss) before cumulative effect of accounting change $ .22 $ (.15)(1) Cumulative affect of accounting change - (.14)(1) ______ ______ Diluted net income (loss) per common share $ .22 $ (.29)(1) ====== ====== (1) Because the computation of diluted loss per common share was antidilutive, the diluted loss per common share reported for the three months ended March 1, 1998, was the same as basic loss per common share.