Joe Kannapell, PE

Home Building Technology, Part XV: The Rebirth of Wood

Joe Kannapell, PE

Wood was not held in high regard in the truss drafting department where I began working. Our fabricator customers often wanted their trusses designed with “old lumber,” meaning the obsolete size of 1-5/8” x 3-5/8”, even though the 1.5” x 3.5” size had been in...

#18320 Cover image
March 2026
Issue #18320
Page 10
Joe Kannapell, PE

The Last Word: Truss Math on Your Phone

Joe Kannapell, PE

Few, if any, pieces of wood will pass the scrutiny of an 8’ level, and the superintendent of Bill Milburn’s homes in Texas wielded his level like a weapon. When I walked those houses, I needed a level, plumb line, string line, and more. Today, I have some of the same capabilities in...

#18320 Cover image
March 2026
Issue #18320
Page 192
Joe Kannapell, PE

Home Building Technology, Part XIV: Truss Equipment Proliferates – Assembly

Joe Kannapell, PE

You could say that Carol Sanford flipped the script on machinery, like he had in so many circumstances throughout his career. In the 1950s, when he couldn’t sell his modular homes in Ohio, he shipped them to Florida. When he couldn’t sell them there, he turned to selling site-built...

#18319 Cover image
February 2026
Issue #18319
Page 10
Joe Kannapell, PE

The Last Word: Bill McAlpine’s Legacy

Joe Kannapell, PE

The name “Bill McAlpine” has such resonance in the component industry that when ITW acquired the company and removed his name, they soon found value in returning to the Alpine moniker. There are many reasons McAlpine earned that singular honor, but one of the least recognized is...

#18319 Cover image
February 2026
Issue #18319
Page 190
Joe Kannapell, PE

Home Building Technology, Part XIII: Truss Equipment Proliferates – Component Saws

Joe Kannapell, PE

As housing demand accelerated in the 1960s, builders increasingly turned to trusses. But, lacking better equipment, truss shops had trouble scaling up to fill their orders. Early shops had little more than radial arm saws to cut members and wood tables to assemble them. They had exhausted every...

#18318 Cover image
January 2026
Issue #18318
Page 10
Joe Kannapell, PE

The Last Word: (When) Will AI Overtake the Truss Industry?

Joe Kannapell, PE

Artificial intelligence (AI) has been 70 years in the making since eminent AI pioneer, John McCarthy, coined that term in 1955 to describe “the capability of a machine to imitate intelligent human behavior.” Truss software has been 50 years in the making, with scant penetration of AI...

#18318 Cover image
January 2026
Issue #18318
Page 188
Joe Kannapell, PE

Home Building Technology, Part XII: Plate People Proliferate

Joe Kannapell, PE

A great American competitive struggle broke out in truss shops around Miami in 1957. The owners of these shops learned that two new plates had hit the market, and both worked without supplementary nailing. The Sanford Grip-Plate that they were using required hundreds of nails to be hammered into...

#17317 Cover image
December 2025
Issue #17317
Page 10
Joe Kannapell, PE

The Last Word: Two Routes to a Great Career in Home Building

Joe Kannapell, PE

Perseverance through tough times is what earns success, as proven again by two men in our industry named Ronnie. They logged a combined eight decades serving builders, surviving two severe recessions, enjoying several good years, and also facing tough transitions when their employers were bought...

#17317 Cover image
December 2025
Issue #17317
Page 188
Joe Kannapell, PE

Home Building Technology, Part XI: Rapid Growth and Competition

Joe Kannapell, PE

The news of trusses being built with newfangled plates was so well received that it raced across the country in the late 1950s. The first to take notice were homebuilders who built with stick framing, who then wanted to try trusses. The first to respond were lumberyards, who were well positioned...

#17316 Cover image
November 2025
Issue #17316
Page 10
Joe Kannapell, PE

The Last Word: How Moehlenpah Revolutionized Pressing

Joe Kannapell, PE

Before there were truss machines, how did fabricators press plates? They were able to use hammers and nails on the Grip-Plate, but when they started using the plates that didn’t need extra nailing, they had a nearly impossible time getting them pressed. When they went to their local...

#17316 Cover image
November 2025
Issue #17316
Page 184
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