EXHIBIT 11 ROBERTSON-CECO CORPORATION COMPUTATION OF BASIC EARNINGS PER COMMON SHARE ---------------------------------------------- (In thousands, except per share data) (Unaudited) Three Months Ended March 31 --------------------------- 2000 1999 ----------- ----------- BASIC: Income: Net income for basic earnings per share calculation ......................... $ 3,561 $ 3,728 ========= ========== Shares: Average number of common shares outstanding......................... 16,063 16,063 ========== ========== Earnings Per Share: Net income per share......................... $ .22 $ .23 =========== ========== EXHIBIT 11 ROBERTSON-CECO CORPORATION COMPUTATION OF DILUTED EARNINGS PER COMMON SHARE ------------------------------------------------ (In thousands, except per share data) (Unaudited) Three Months Ended March 31 2000 1999 ---- ---- DILUTED: Income: Net income for diluted earnings per share calculation ............................ $ 3,561 $ 3,728 =========== =========== Shares: Average number of common shares outstanding............................ 16,063 16,063 Incremental shares to reflect dilutive effect of deferred compensation plan.......... 27 21 ----------- ----------- Total number of common shares assuming dilution ............................ 16,090 16,084 ========== =========== Earnings Per Share: Net income per share............................ $ .22 $ .23 ========== ===========