EXHIBIT 11 ROBERTSON-CECO CORPORATION COMPUTATION OF EARNINGS PER COMMON SHARE (Thousands, except share and per share amounts) (Unaudited) Three Months Ended Six Months Ended June 30 June 30 1997 1996 1997 1996 PRIMARY: Income from continuing operations . . . . . . . . . . $ 4,335 $ 6,545 $ 7,495 $ 9,807 Extraordinary gain on debt redemption . . . . . . . . . . . . . . . . . . . . . - - 4,568 - Net income . . . . . . . . . . . . . . . . . . . . . $ 4,335 $ 6,545 $ 12,063 $ 9,807 Average number of shares of common stock outstanding . . . . . . . . . . . . . 16,0561 6,009 16,056 16,009 Incremental shares to reflect dilutive effect of deferred compensation plan . . . . . . . . . . . . . . . . 31 108 31 111 Total shares . . . . . . . . . . . . . . . . . . . . 16,087 16,117 16,087 16,120 Per common share: Income from continuing operations . . . . . . . . . . $ .27 $ .41 $ .47 $ .61 Extraordinary gain on debt redemption . . . . . . . . - - .28 - Primary earnings per share . . . . . . . . . . . . . $ .27 $ .41 $ .75 $ .61 EXHIBIT 11 ROBERTSON-CECO CORPORATION COMPUTATION OF EARNINGS PER COMMON SHARE (Thousands, except share and per share amounts) (Unaudited) Three Months Ended Six Months Ended June 30 June 30 1997 1996 1997 1996 FULLY DILUTED: Income from continuing operations . . . . . . . . $ 4,335 $ 6,545 $ 7,495 $ 9,807 Extraordinary gain on debt redemption . . . . . . . . . . . . . . . . . . . - - 4,568 - Net income . . . . . . . . . . . . . . . . . . . $ 4,335 $ 6,545 $ 12,063 $ 9,807 Average number of shares of common stock outstanding . . . . . . . . . . 16,056 16,009 16,056 16,009 Incremental shares to reflect dilutive effect of deferred compensation plan . . . . . . . . . . . . . . . 31 108 31 111 Total shares . . . . . . . . . . . . . . . . . . 16,087 16,117 16,087 16,120 Per common share: Income from continuing operations . . . . . . . . $ .27 $ .41 $ .47 $ .61 Extraordinary gain on debt redemption . . . . . . - - .28 - Fully diluted earnings per share . . . . . . . . $ .27 $ .41 $ .75 $ .61