90 ft Flagpoles – High-Strength U.S.-Manufactured Flagpole Systems

90 ft Flagpoles

For truly commanding vistas, a 90 ft flagpole sets the standard. Liberty Flagpoles’ 90 ft models are USA-built from marine-grade aluminum or high-tensile fiberglass and engineered with fortified wall sections, vibration-dampening cores, and premium finishes. Ideal for stadiums, civic centers, campuses, and waterfront icons, these poles deliver monumental presence and rock-solid reliability.

Key Advantages

• Skyline Impact – Stand above structures for unmatched visibility

• Rugged Construction – Heavy-wall aluminum or corrosion-proof fiberglass

• Hurricane-Series Design – Integrated dampeners and reinforced collars

• Veteran-Owned Quality – American craftsmanship from start to finish

• Custom Finishes & Halyards – Satin or powder-coat in any color; internal/external rope systems

Installation Highlights

1. Site Prep: Excavate a 96″ deep × 36″ diameter foundation; set our industrial ground sleeve level.

2. Concrete Anchor: Pour 1,200 lb-ft high-strength concrete; cure 96 hrs before assembly.

3. Pole Erection: Use certified crane & rigging with engineered spreader bars to lift each 90 ft section; torque all splice hardware.

4. Halyard Setup: Route your rope through the truck, secure on the cleat, and verify flawless pulley action.

5. Final Inspection: Confirm pole plumb, cycle the flag, and secure all fittings.

Recommended Accessories

• Aerospace-Grade Halyard Kits (internal/external) with UV-stable rope

• Oversized Snap Hooks & Cleats in 316-grade stainless steel

• Architectural LED Lighting (hardwired, programmable)

• Monumental Finials (oversized ball, large eagle, custom)

• Reinforced Adapter Plates & Sleeve Extensions

Frequently Asked Questions

What flag size suits a 90 ft pole?
We recommend a 12′×18′, 15′×20′, or larger flag to match the scale of a 90 ft mast.

Permits and regulations for 90 ft installations?
Any pole over 30 ft usually needs a building permit and inspection. Always consult local authorities before ordering.

Is professional installation required?
Yes—90 ft poles demand crane services, certified riggers, and engineered lift plans to ensure safety and precision.

Which material works best in coastal zones?
Fiberglass composites resist salt-air corrosion and flex under wind, while hurricane-series aluminum offers maximum wind-zone resilience.

Elevate your landmark projects with a 90 ft flagpole—trusted American-made quality built to last.