The average spacing between telephone poles is 125 feet, according to the Florida Public Service Commission. Poles can range from 20 to 100 feet tall and are generally buried at least 6 feet deep.
The most common trees used to make utility poles include Douglass Fir, Southern Pine and Western Red Cedar, according to the Florida Public Service Commission. Poles have a lifespan of 30 to 40 years.
Wood poles are 15 to 100 percent more cost-effective than fabricated poles, according to the North American Wood Pole Council. The council estimates that 130 million wooden poles are in use in North America.