Williams Scotsman International, Inc. Executive Officers Adopt 10b5-1 Trading Plans.

BALTIMORE -- Williams Scotsman International, Inc. (NASDAQ:WLSC), a leading provider of modular space solutions, today announced that Gerry Holthaus, Chairman, President and Chief Executive Officer and other executive officers have entered into 10b5-1 trading plans for personal tax, asset diversification and financial planning reasons. These plans were executed during the post initial public offering lock up period, which ends today.

Pursuant to the terms of the trading plans, a maximum of approximately 541,000 shares are expected to be sold, beginning today and through the period ending March 29, 2007. These shares will be acquired through the exercise of employee stock options, which are scheduled to expire on or before March 30, 2007.

Rule 10b5-1 allows corporate officers and directors to adopt written, pre-arranged stock trading plans when they do not have material, non-public information. Using these plans, the executive officers can diversify their investment portfolios, spread stock trades out over an extended period of time to reduce any market impact, and avoid concerns about whether they had material, non-public information when they sold their stock.

About Williams Scotsman International, Inc.

Williams Scotsman International, Inc., headquartered in Baltimore, Maryland, is a leading provider of mobile and modular space solutions for the Construction, Education, Commercial, Healthcare and Government markets. The company serves over 25,000 customers, operating a fleet of over 98,000 modular space and storage units that are leased through a network of 86 locations throughout North America. Williams Scotsman provides delivery, installation, and other services, and sells new and used mobile office products. Williams Scotsman also manages large modular building projects from concept to completion. Williams Scotsman is a publicly traded company (NASDAQ:WLSC) with operations in the United States, Canada, Mexico, and Spain. For additional information, visit the company's web site at www.willscot.com, call [phone], or email to [e-mail].

All statements other than statements of historical fact included in this press release are forward-looking statements and involve expectations, beliefs, plans, intentions or strategies regarding the future. Although the Company believes that the expectations reflected in these forward-looking statements are reasonable, it assumes no responsibility for the accuracy and completeness of these forward-looking statements and gives no assurance that these expectations will prove to have been correct. Important factors that could cause actual results to differ materially from the Company's expectations are disclosed under "Risk Factors" and elsewhere in the Company's 10-K, 10-Q and other SEC filings, including, but not limited to, substantial leverage and its ability to service debt, changing market trends in its industry, general economic and business conditions including a prolonged or substantial recession, its ability to finance fleet and branch expansion and to locate and finance acquisitions, its ability to implement its business and growth strategy and maintain and enhance its competitive strengths, intense industry competition, availability of key personnel and changes in, or the failure to comply with, government regulations. The Company assumes no obligation to update any forward-looking statement.