Exhibit 11 Boise Cascade Office Products Corporation Computation of Per Share Earnings September 30 Three Nine Months Ended Months Ended 1996 1995 1996 1995 (expressed in thousands, except per-common-share amounts) Income per common share $ .19 $ .20 $ .66 $ .46 Average shares 62,450 61,570 62,372 61,449(1) Primary earnings per share $ .19 $ .20 $ .65 $ .46 Average shares 63,076 61,608 63,103 61,462(1) Fully diluted earnings per share $ .19 $ .20 $ .65 $ .46 Average shares 63,101 61,623 63,129 61,467(1) (1) Pro forma shares.