EXHIBIT 11 BOISE CASCADE OFFICE PRODUCTS CORPORATION COMPUTATION OF PER SHARE EARNINGS (in thousands, except share information) For the Three Months For the Nine Months Ended September 30 Ended September 30 1997 1996 1997 1996 EARNINGS PER SHARE Shares of Common Stock: Weighted average shares outstanding 63,086,894 62,449,765 62,951,608 62,372,100 Net income $ 12,532 $ 11,720 $ 39,153 $ 40,877 Earnings per share $ .20 $ .19 $ .62 $ .66 FULLY DILUTED EARNINGS PER SHARE Shares of Common Stock: Weighted average shares outstanding 63,086,894 62,449,765 62,951,608 62,372,100 Dilutive effect of options 137,830 185,987 135,759 272,379 Dilutive effect of contingent shares 430,207 465,303 447,267 484,031 __________ __________ __________ __________ Fully Diluted Weighted Average Shares Outstanding 63,654,931 63,101,055 63,534,634 63,128,510 Net income $ 12,532 $ 11,720 $ 39,153 $ 40,877 Fully diluted earnings per share (1) $ .20 $ .19 $ .62 $ .65 (1) Fully diluted earnings per share for the periods presented are not disclosed in the financial statements because the amounts are not considered dilutive under the provisions of Accounting Principles Board Opinion No. 15, "Earnings Per Share."