The HTTH6.5 heavy tension tie is designed to meet the growing demands of modern construction. This product combines state-of-the-art design with rigorous testing, offering a robust and reliable solution for high-load applications. Its painstaking engineering and precision manufacturing ensure...

Specific gravity (G) is a measure of wood density affected by the specific species or species combination of the commercial grade, growth region, and grading rules. It is the single most important lumber property for the strength of mechanical fasteners, such as nails and screws used in...

At Simpson Strong-Tie, we continually look for ways to improve our offerings for the building industry. During one of our periodic product line reviews, we realized there was a void to be filled in our holdown line for residential construction. Over the last decade, we’ve made strides...

My career at Simpson Strong-Tie came full circle this summer. As I take the reins as the company’s new Vice President of Market Development – Component Manufacturers, I can’t help but think back to my earliest days at the company when my path crossed with the Iowa Truss...

I love history, particularly the history of wood framing in the U.S. One segment of this category that has some confusion surrounding it is the history of metal connectors used to join two or more wood members to make a structural connection. There are many types of structural connectors,...

One interesting part of being a field engineer for Simpson Strong-Tie is having the opportunity to see how different structural engineers may take different approaches to similar designs. We at Simpson Strong-Tie have come to appreciate these different approaches and embrace this phenomenon by...

Fire retardant lumber, also called FRTW, is used when a project has a requirement to reduce the structures’ ability to burn and to reduce the structures’ contribution to the spread of fire. Most fire retardant materials also reduce the development of smoke and the release of...

Q & A with Steve Pryor, P.E., S.E., Senior Manager, Testing and Research Operations, Engineering, Simpson Strong-Tie As a research partner in the National Hazards Engineering Research Infrastructure (NHERI) TallWood project, Simpson Strong-Tie participated in a series of earthquake shake...

In response to the increasing demand for mass timber construction, Simpson Strong-Tie  has created mass timber solutions for these builds. These product additions include our Heavy Seated Knife Plate (HSKP), ACBH concealed beam hanger,  and CBH concealed beam hanger. Gain insights into...

We just released our updated Wood Construction Connectors catalog (C-C-2024) which features our product line that has a legacy that started in 1956. This year’s 372-page version begins with a colorful, attention-grabbing cover design and is packed inside with all the technical details that...