The United States Flag Store is your source of foundation sleeves for in-ground flagpoles.
Inground Flagpole Foundation Sleeve
We carry galvanized steel and PVC foundation sleeves independently of flagpoles to allow you to get just the parts you need for installation. Foundation sleeves give greater strength to the base of the flagpole and allow for a more stable installation. They can be used for tall flagpoles or flagpoles installed in windy locations.
Our PVC sleeves are form fitted meaning there is no gap between the pole and sleeve. Our stainless steel foundation sleeves require 1 foot of the pole to be encased in the ground sleeve for every 10 feet of exposed flagpole height. The sleeve should be 2 inches larger in diameter than the flagpole and the space between the sleeve and flagpole should be filled with dry sand. PVC and galvanized steel sleeves come with installation instructions.
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