About Simpson Timber Co.
Simpson Timber Co.
PO Box 460
Simpson Investment Company is a holding company with three forest products subsidiaries: Simpson Timber Company, Simpson Door Company and Simpson Tacoma Kraft Company, LLC. Those subsidiaries produce construction lumber, doors, and packaging papers in Washington and California.
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For other relevant searches, you might want to try: Welcome to the Simpson Web Site Founded in 1890, Simpson is one of the oldest, continuously operating forest products companies in the Pacific Northwest. Today.