| Sectional
Flagpoles: |
These flagpoles are made from one size of tubing
with one end of the tube tapered to fit inside
the next tube. These poles are made of two different
materials; either painted steel or anodized aluminum.
Both materials can wear at the joints and loosen
over time. In addition, steel tends to rust, especially
in the joints, which are contact points. Single
sized tubing decreases in strength in direct proportion
to height. The taller the flagpole, the less strength
it has. Examine a commercial pole; notice the
taper from top to bottom, this makes them stronger
than if they were the same diameter all the way
to the top. Sectional poles are economical, usually
costing from $50.00 to $120.00. Ropes are used
to raise and lower the flag and wear out over
time. The ropes and clips can produce a clanging
noise in windy situations. These poles typically
last 3 to 7 years or longer if not flown in wind
above 25 miles per hour. Heights range from 15ft.
to 20 ft. |
| Telescoping Flagpoles: |
Telescoping flagpoles are made from different
diameter tubes that slip inside each other. Each
section is raised and locked into place, starting
with the smallest section. Due to the tapered
effect, telescoping flagpoles maintain their strength
to height ratios. Telescoping flagpoles do not
have ropes to tangle and wear or hardware to constantly
clang in windy conditions. Telescoping flagpoles
are manufactured in heights from 16 ft. to 35
ft. In heights over 20ft, the pole can become
very heavy to lift, therefore to save your back,
look for a pole with spring assist. Prices range
from $150.00 to $750.00. These poles are manufactured
out of aluminum and have an anodized finish. The
life expectancy of the telescoping flagpole is
10 to 30 years with minimal maintenance. |
| Commercial Flagpoles: |
These flagpoles are made of a single piece
of tubing and the taper is spun or rolled into
the tube. These are the strongest flagpoles made
as long as they have the correct wall thickness
and diameter to height ratio. There are two styles:
poles with external ropes and pulleys or poles
with internal ropes and pulleys. Commercial flagpoles
are made of aluminum and anodized. Pricing for
commerical grade flagpoles start at $900 and can
go as high as $2,500 or more. |
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| What
Material and Finish to look for: |
| |
The best all around material for a flagpole
is aluminum. Look for aircraft grade (6000 series)
aluminum with T6 temper. The best overall finish
is hard anodized or architectual grade anodized
finish as it is the most resistant to wear and
scratches. |
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|
| What
to look for in a telescoping pole: |
| Tubing Size |
Strength of a flagpole is mainly determined
by the diameter of the tube used. When comparing
flagpoles of the same height look for the largest
diameter tubing in each section as this will provide
the strongest flagpole.
Wall thickness has some benefit to strength but
not nearly as much as the diameter size. |
| Locking Systems |
Locking systems will vary among different manufacturers
since most manufacturers have a patent on their
processes. Look for a system that is self-indexing
and self-locking. That means when each section
is raised it is automatically guided into the
locking position. The locking system should be
a positive locking system and not a friction or
expansion based. Look for a system with minimal
moving parts for reduced failure.
|
| Spring Assist
|
Verify that the manufacturer offers a spring
assist system. On smaller flagpoles the spring
assist system is great because minimal strength
is required. For flagpoles that are over 20 ft.
the spring assist is beneficial because the pole
weight can vary from 12lbs. to 20lbs. |