STATEMENT OF CALCULATION OF AVERAGE COMMON

Published on August 13, 1996



EXHIBIT 11
BARRETT BUSINESS SERVICES, INC.
STATEMENT OF CALCULATION OF AVERAGE
COMMON SHARES OUTSTANDING


Three Months
Ended
June 30, 1996
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Primary Earnings Per Share:
Weighted average number of shares 6,739,075
Stock option plan shares to be issued at prices
ranging from $3.50 to $18.6875 per share 515,635
Warrant issues at a price of $4.20 per share 90,000
Less: Assumed purchase at average market price
during the period using proceeds received upon
exercise of options and purchase of stock, and
using tax benefits of compensation due to
premature dispositions (367,115)
Total Primary Shares 6,977,595

Fully Diluted Earnings Per Share:
Weighted average number of shares 6,739,075
Stock option plan shares to be issued at prices
ranging from $3.50 to $18.6875 per share 515,635
Warrant issues at a price of $4.20 per share 90,000
Less: Assumed purchase at the higher of ending or
average market price during the period using
proceeds received upon exercise of options and
purchase of stock, and using tax benefits of
compensation due to premature dispositions (356,085)
Total Diluted Shares 6,988,625