SIMPSON MANUFACTURING CO., INC. AND SUBSIDIARIES
Computation of Earnings Per Common Share
For the Three Years Ended December 31, 1999, 1998 and 1997
Exhibit 11
Basic Earnings per Share
1999 1998 1997
------------ ------------ ------------
Weighted average number of common
shares outstanding 11,834,915 11,556,629 11,471,217
Shares issuable pursuant to stock
bonus plan 2,400 3,825 3,375
------------ ------------ ------------
Number of shares for computation
of basic net income per share 11,837,315 11,560,454 11,474,592
============ ============ ============
Net income for computation of basic
net income per share $ 38,467,392 $ 31,141,523 $ 25,985,779
============ ============ ============
Basic net income per share $ 3.25 $ 2.69 $ 2.26
============ ============ ============
SIMPSON MANUFACTURING CO., INC. AND SUBSIDIARIES
Computation of Earnings Per Common Share
For the Three Years Ended December 31, 1999, 1998 and 1997
Exhibit 11 (continued)
Diluted Earnings per Share
1999 1998 1997
------------ ------------ ------------
Weighted average number of common
shares outstanding 11,834,915 11,556,629 11,471,217
Shares issuable pursuant to employee
stock option plans, less shares
assumed repurchased at the average
fair value during the period 392,723 483,361 486,337
Shares issuable pursuant to the
independent director stock option
plan, less shares assumed
repurchased at the average fair
value during the period 3,827 4,382 5,021
Shares issuable pursuant to stock
bonus plan 2,400 3,825 3,375
------------ ------------ ------------
Number of shares for computation of
diluted net income per share 12,233,865 12,048,197 11,965,950
============ ============ ============
Net income for computation of diluted
net income per share $ 38,467,392 $ 31,141,523 $ 25,985,779
============ ============ ============
Diluted net income per share $ 3.14 $ 2.58 $ 2.17
============ ============ ============