Products & Services


Simpson Strong-Tie Co. Inc.
5956 W Las Positas Blvd
Pleasonton, CA 95488
Phone: 1-888-999-5099
Fax: 925-847-1603
Training Manager: Jim Mailey

For more than 50 years, Simpson Strong-Tie has focused on creating structural products that help people build safer and stronger homes, buildings and decks. Considered a leader in structural systems research and testing, Simpson Strong-Tie® products are recognized for helping structures resist high winds, hurricanes and seismic forces. The company is one of the largest manufacturers of connectors, fasteners, fastening systems, anchors and lateral-force resisting systems in the world. Simpson Strong-Tie is committed to providing its customers with exceptional products and prompt, knowledgeable service.

Based on industry research and data collected by academia and Simpson Strong-Tie, there is a great need to educate homeowners about deck safety and maintenance.

Each year, there are 2.5M new and replacement decks built in the U.S. Most of these are built with minimal hardware and do not meet code requirements. Of the 40M existing decks, 28 percent are built by homebuilders and more than half are built by homeowners/DIYers. Of these, approximately 20M are not code compliant and need to be rebuilt or retrofitted, particularly with the average life span of a wood deck estimated at 10-15 years.

Inadequate deck building has resulted in a growing number of deck failures and related injuries/deaths. Since 1999, there have been thousands of reported injuries and 20 deaths as a result of deck failures. Ledger, post-to-base and post-to-rail connections are the main areas causing problems. The ledger connection, where the deck connects to the house, is the most common way decks collapse.

Since 2007, Simpson Strong-Tie has launched Deck Safety Campaigns to raise awareness about the importance of building and maintaining safe decks in order to improve deck construction in the U.S. We continue to work closely with ASHI and other industry experts to spread the message of deck safety.

For more information about Simpson Strong-Tie, visit or call 800-999-5099. To download our Deck Framing Connection Guide, go to


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