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How to Install an Inground Flagpole

An inground or ground Flagpole is simply an inground Flagpole. It is a strong, permanent pole that can withstand wind speeds up to 130 mph. Foundations are required for ground flagpoles, recommended reading here.

Digging a pit and then wetting the soil before pouring concrete are all you need to make a foundation. The concrete must be poured into a cylindrical basesleeve. The groundsleeve, a thick steel tube with an open top and wide bottom, is used to protect flagpoles. Steel plates hold the groundsleeve in its place from the outside. Steel wedges are made from steel and secure the flagpole’s centering point at the outside of the groundsleeve. Ground spikes can be included in groundsleeves for channeling lightning. This is not necessary if your fiberglass flagpole has a ground spike.

Flash collars are also possible for the foundation. This covers the base and ground sleeves. The space between the collar and the pole is sealed to keep rainwater out of the foundation’s bottom.

For the flagpole to not blow over, your foundation must be sufficiently deep. The rule of thumb for flagpoles is to have 10% of their total length underground.

Some flagpoles require professional installation. Ask the distributor or manufacturer whether they will install it.


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