Pup trailer history question.

@Mike2633

 

Pup trailers were invented by CF corporation around the early 1950s. They did have shorter trailers in the 1940s because of length laws and 28' doubles were not standardized across the country in that time like that are now it wasn't until the early 1980s not that long ago that 28' doubles were standardized across the country.

The length became 28' because that was the length that the state of Oregon allowed when CF was coming out with the double trailers. CF had to lobby the federal government in the early 1980s to strong arm Pennsylvania and Iowa but mostly Pennsylvania to make doubles legal. Pennsylvania did not like doubles and never wanted them to be legal. Eventually CF lobbied the government and they told the state of Pennsylvania either make doubles legal or lose all you're money for road repairs and that was the end of that.

 

You can read all about it, in this thread:
Never Stand Still

 

This page has most of the answers to you're question:
Never Stand Still

 

Until the 1950s this was the only real doubles that they had on the west coast because of length laws this was about the absolute best CF could do as far as double's that were good between Washington, Oregon and Idaho. In the late 1940s and very early 1950s they developed the grandfather of what would be today known as the modern day 28' trailer. It was all based around length laws and rules which during that time were a big hodgepodge.

 

@Mike2633 I knew you’d be the guy to call on for this and you did not disappoint

 

Are you working on a special project?