What is the Best Way to Handle Defects Under the Plated Area? Glenn Traylor Everyone who uses lumber in trusses understands that defects in lumber can impact truss performance in different ways. Some defects are not important but others will affect truss performance and can even cause truss failure. [For all photos, See PDF or View in Full Issue.] In the first photo,... Read More March 2024 Issue #16296 Page 35
Can Eased Edge Lumber Usage Impact Truss Design? Glenn Traylor Originally intended as an improvement in lumber manufacturing, most dimensional lumber used for framing has a radius corner created during the planing process. The rounded corner radius is intended to make the lumber easier to handle and can improve the lumber’s performance because sharp... Read More February 2024 Issue #16295 Page 33
The Last Word: Floor Machine Fiascos Joe Kannapell Before leaving the subject of floor trusses, two machines deserve special attention, the Tiger Cat and the Structur-Span. Both included features that were way ahead of their 1970s provenance and both were markedly faster than even present-day machines. Both plated the truss with a single pass,... Read More February 2024 Issue #16295 Page 136
Floor Truss Technology, Part VII: The Devil is in Those Details Joe Kannapell Building intricate floor truss details may bedevil a robot, but they provide the inherent advantage of floor trusses over I-joists. There are also things that floor trusses can do that I-joists cannot. And they facilitate the most efficient use of materials. Visiting an I-joist cut-off yard... Read More December 2023 Issue #15293 Page 10
Do Your Floor Truss Chord Splices Meet Your Design Requirements? Glenn Traylor It seems like a simple thing—connect lumber together with connectors creating a top or bottom chord for your floor trusses that exceed your lumber length inventory. It’s one of the simplest applications of metal connector plates. But, while the task seems obvious, there are several... Read More December 2023 Issue #15293 Page 31
The Last Word: The Concrete Truss Machine Joe Kannapell New inventions may fade away, but most provide valuable lessons, like the concrete truss machine. Not many of these were built, but they seemed to Cal Jureit to be the logical match for his new truss plate, and they set the course for all his future machines. Jureit had to have been... Read More December 2023 Issue #15293 Page 134
Floor Truss Technology, Part VI: The Last Round of Floor Machines Joe Kannapell Our contemporary floor machines were ready for the resurgence of demand that has followed the pandemic. These new models had many fascinating features, accumulated from the multiple iterations before them. They were more durable, they lessened labor, and they built a quality truss, embedding all... Read More November 2023 Issue #15292 Page 10
Floor Truss Technology, Part V: Current Machines Joe Kannapell Component manufacturers learned one very painful floor truss lesson in the 1970s that needed to be remedied in the 1980s – nightmare repairs can result from plates not being fully embedded. That predicament usually resulted from insufficient tonnage to fully press the larger plates found... Read More October 2023 Issue #15291 Page 10
The Last Word: Can Crooked Lumber Defeat Robotics? Joe Kannapell A robot visited the BCMC Show floor again this year, and, for the first time, really showed its stuff, picking truss plates like there was no tomorrow. And its dynamic demo couldn’t be missed, as House of Design (HoD) positioned their Nail Plate Picking Cell right at the exhibit’s... Read More October 2023 Issue #15291 Page 134
Are We Designing Our Components to Benefit Our Truss Builders and End Users? Glenn Traylor Many years ago, early in my career as a truss designer, I was interrupted by the production manager. He loudly entered my office with a piece of 2 x 12 and a circular saw and abruptly slammed both on top of my drafting table that was sporting a newly created truss layout. (We did not have... Read More July 2023 Issue #15288 Page 35