You probably wouldn’t ignore a “warning sign” on the highway, as you can easily imagine the consequences of doing so. We can face similar situations when designing trusses, and the end result is that whatever we do in the software can end up in the real world somewhere on a...

After years of development, we’re excited to introduce the newest member of the Strong-Wall® shearwall family – the Strong-Wall high-strength wood shearwall (WSWH). The Strong-Wall High-Strength Wood Shearwall Lineup The WSWH is a high-strength prefabricated shearwall...

Lumber properties are influenced by species and growing region. Species with similar design properties are combined into species groups, as shown in Tables 4A, 4B, and 4F of the NDS Supplement[1]. For example, a common species group in the southeastern U.S. is Southern Pine (SP), which includes...

There are many steps in the process of bringing lumber to the truss plant to be used in our trusses. Lumber must be harvested then sawn. Drying and planing brings the lumber closer to potential use, but it is not until the lumber makes it through the grading process that it is suitable for use....

Over the past few years that I’ve worked as an engineer for Simpson Strong-Tie in Texas, work-related events have brought me to a few great beach destinations: Clearwater and Destin, Florida, to name a few. But tightly packed schedules always left me feeling like I didn’t get to...

For more than 40 years, truss partition separation, often loosely referred to as “truss uplift,” has been a practical (and annoying) issue for homeowners and homebuilders. While it was first investigated at the field level and researched in the laboratory in the 1970s, an October...

Hurricane season is in full swing, and we’ve had a record number of named storms to date. With each one, Mother Nature has taken the opportunity to remind us of her awesome power and teach us how we can improve our built environment in preparation for the next. One of the lessons...

Many of you reading this may already be familiar with our Strong-Wall site-built portal frame system, or PFS for short. Simpson Strong-Tie launched the PFS last spring to provide designers, builders and contractors in prescriptive markets with a simple and cost-effective solution to meet...

Since the establishment of our business in 1999, All-Span, Inc. has grown to become one of the nation’s largest producers of light gauge steel truss systems, producing and delivering millions of square feet of roof trusses throughout the eastern United States. We approach each of our jobs...

According to the Greek philosopher Heraclitus, “The only constant in life is change.” When the latest Wood Construction Connectors catalog (C-C-2019) was published, my colleague, Paul McEntee, PE authored an excellent blog post to announce some big changes within the catalog. He...