Flagpole Shaft Descriptions
Definitions for the dimensions and construction details of a commercial flagpole shaft.
When specifying a commercial flagpole, several shaft dimensions and construction details work together to determine the pole's appearance, strength, and wind rating. This page defines each of those terms so you can read product specs with confidence.
Mounting Height
The mounting height is the exposed height of the flagpole measured from the ground to the top of the flagpole shaft. Please note that with the addition of trucks and ornaments, the overall height can increase by 1 to 2 feet, which may be important in areas with height restrictions.
If needed, mounting heights can be adjusted upon request at no additional charge to meet specific overall height requirements.
25' Mounting Height Exception
Flagpoles with a 25' mounting height are produced in a single piece with an overall length of 26'-6". Of this length, 2'-6" is embedded below grade into the ground sleeve. Once the truck and finial are installed, the flagpole's nominal height will be 25'.
This standard design facilitates shipping in a pup trailer, resulting in considerable freight savings. If needed, full 27'-6" shafts are available upon request.
Butt Diameter
The diameter in inches at the base of the flagpole shaft. Butt diameter, in combination with wall thickness, is one of the primary factors that determines a flagpole's wind rating.
Top Diameter
The diameter in inches at the top of the flagpole shaft. The difference between butt and top diameter defines the taper of the pole.
Wall Thickness
The thickness of the flagpole shaft in inches, varying from .125" to .500". A thicker wall increases the flagpole's strength and wind rating but also raises cost and weight.
Single & Multi-Piece Flagpole Shafts
Flagpoles are offered in both single-piece and multi-piece designs. For flagpoles 45' and taller, the shafts are typically multi-piece based on the mounting height.
These sections can be easily assembled on-site without compromising structural integrity, resulting in only a hairline joint that indicates the flagpole is not a single-piece unit.
