The ABSOLUTE BEST mast material is GUADUA !!
https://www.bambooimport.com/en/guadua-bamboo-pole-o-11-13-x-200-cm
Guadua can be considered bamboo on steroids. It is wood, can run from 3 - 5 inches in diameter, 30 to 50 feet tall, straight and strong as hell !!! I have used Guadua for my antenna masts ever since we moved to Colombia 12 years ago. I ran a 2-element quad atop a 13 meter guadua pole without guy wires, and it survived 11 years of Colombian thunderstorms.
View attachment 29041
The best thing about using this as an antenna mast is that it is NOT metal, and does not attract lightning. Why use a metal mast that is nothing more than a lightning rod ??
If you know anything about bamboo, it is that it will grow anywhere as long as there is a lot of water available. There are many places that will sell guadua sprouts that you can plant and harvest after only a years growth. Give it a try.
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