Glenn Traylor

How Should Defects Be Recorded When Inspecting a Critical Plate?

Glenn Traylor

A critical plate is a plate with a Joint Stress Index of 80% or greater. The ANSI/TPI 1–2014 Standard stipulates that critical plate inspections must be conducted when completing the three inspections per station/per shift/per week requirement. On average, the standard requires one...

#11236 Cover image
March 2019
Issue #11236
Page 34
Glenn Traylor

How Important is Angulation? Why is It Important?

Glenn Traylor

Per ANSI/TPI 1–2014, National Design Standard for Metal Plate Connected Wood Truss Construction, plates should be installed within a 10 degree tolerance. So what happens when the plate is rotated and exceeds this requirement? The simple answer is: the configuration and design of...

#10233 Cover image
December 2018
Issue #10233
Page 33
Glenn Traylor

What is the Most Common Fabrication Issue That Impacts a Truss?

Glenn Traylor

The most common problem typically encountered is excessive defects in the plated area of the truss. While some defects are acceptable in the plated area, the degree of defects depends on the actual joint situation and forces at the joint. Connector sizes are controlled by design, handling,...

#10229 Cover image
August 2018
Issue #10229
Page 32
Glenn Traylor

Mind the (Member) Gap

Glenn Traylor

Everyone knows that member gaps can be caused by uncalibrated saws and poor jigging stops during truss set-up. But did you know the most likely cause of member gaps is the lumber carriage shifting or moving the lumber at an angle, thereby causing a skewed cut? This is especially true when a gang...

#10227 Cover image
June 2018
Issue #10227
Page 26
Glenn Traylor

Wedges—Misunderstood and Underappreciated?

Glenn Traylor

The lowly wedge sometimes gets very little respect. If your plant is doing it right, the wedges usually are cut from drops or culls. That’s a good way of doing it, and it sounds very simple, but not just any piece of wood is suitable for a wedge. There are important qualifications that...

#10224 Cover image
March 2018
Issue #10224
Page 36
Sean Hubbard

Floor Truss Chord Splicers & Floor Truss Finish Roller Presses

Sean Hubbard

When I decided to conduct this 12-month series of product comparisons last fall, I knew it would be a year-long commitment of my time and effort. Then and now, however, I also was convinced that it would provide useful information in a format that allows for direct comparisons on specific...

#10223 Cover image
February 2018
Issue #10223
Page 12
Glenn Traylor

Is There Such Thing as Too Much Pressure?

Glenn Traylor

Too much pressure is not only a problem in our lives, it can also be a problem in our plants. One of the most important issues when manufacturing quality trusses is plate embedment. Without proper embedment, the connector plate cannot adequately transfer load forces through the members down to...

#10223 Cover image
February 2018
Issue #10223
Page 36
Sean Hubbard

Floor Truss Roller Presses

Sean Hubbard

As discussed last month, this year will we be providing a series of product comparisons in each issue. The guidelines we have used in assembling this series are: Each product will be limited to only the information available to customers via the internet A comparison of standard...

#10222 Cover image
January 2018
Issue #10222
Page 12
Glenn Traylor

Seeing the Need for Quality Assurance AND Training

Glenn Traylor

When you look at this photo, what do you see? The photo is an actual picture taken during a plant audit, but just imagine this was taken at your truss plant. In the photo, the second side of the floor truss is set up in the floor machine with the connector plate positioned and ready to receive...

#10222 Cover image
January 2018
Issue #10222
Page 36
Glenn Traylor

A Case for Providing More Design Info to the Assembly Table

Glenn Traylor

It’s true that, by nature, the materials currently used for wood trusses can vary in strength and properties. Given a specific lumber size and grade, truss builders often need to evaluate lumber picked, cut, and provided to build the specific job at hand. After verifying the lumber grade,...

#10221 Cover image
December 2017
Issue #10221
Page 36

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