flagpole

A flagpole is a tall vertical or slightly inclined pole designed to support a flag for display. Flags are raised and lowered along a halyard, a rope threaded through a pulley or sheave at the top and anchored at the base. Flagpoles are used on ships, in public spaces, on buildings, and in private properties.

Typically made from aluminum, steel, fiberglass, or wood, flagpoles vary in height and diameter. Common components include a base or foundation, the mast, a crown or finial at the top, a halyard system (internal or external), pulleys or a winch, a cleat to secure the line, and hardware to attach the flag via grommets. Some designs include a drum or internal hoist to hide the line.

Installation ranges from freestanding poles with concrete foundations to wall- or roof-mounted units. Heights can range from a few meters for residential use to over 30 meters for civic or commercial sites. Maintenance includes inspecting for corrosion, repainting or anodizing metal surfaces, replacing worn halyards, and lubricating pulleys or winches to ensure smooth operation.

History and usage vary widely. Flagpoles have supported banners and standards since ancient times; modern designs emphasize wind loading and safety. Many countries regulate hoisting and display practices through codes or guidelines to minimize risk to people and property while preserving the flag’s appearance.