70 ft Flagpoles – Heavy-Duty USA-Built Poles for Institutional Use

70 ft Flagpoles

When you need a landmark installation that soars, a 70 ft flagpole delivers unparalleled presence. Liberty Flagpoles’ 70 ft models are proudly crafted in the USA from marine-grade aluminum or high-tensile fiberglass, engineered for maximum strength and longevity. These towering poles feature reinforced wall sections, premium finishes, and vibration-dampening cores—ideal for civic centers, universities, stadiums, and coastal landmarks.

Material & Design Highlights

• Seamless 6063-T6 Aluminum: Large-diameter extrusions with heavy-wall thickness for all-weather stability

• Fiberglass Composite: Corrosion-proof flex under load, perfect for salt-air and high-humidity environments

• Hurricane-Series Core: Integrated dampening coils and over-engineered collars to resist extreme winds

• Finish Options: Satin metal, powder-coat in black, bronze, or white, and custom color matching

• Halyard Systems: Choose internal for a clean look or external for easy maintenance, both with stainless-steel cleats

Site Preparation & Erection

1. Foundation Excavation: 60″ deep × 24″ diameter hole; insert our heavy-duty anchor sleeve plumb.

2. Concrete Anchor: Pour 800 lb-ft mix; cure for at least 72 hours before assembly.

3. Pole Lifting: Use a certified crane or lift system to hoist 70 ft sections; secure splices with rated hardware.

4. Halyard Installation: Route rope through the truck, tie off at the cleat, then test the raise/lower action.

5. Final Check: Confirm plumb alignment, inspect hardware torque, and test flag operation prior to display.

Essential Accessories

• Industrial-Strength Halyard Kits (internal/external)

• Oversized Stainless Snap Hooks & Cleats

• Architectural LED Flood Lighting (hardwired, dimmable)

• Custom Finials (massive ball, large eagle, specialty shapes)

• Reinforced Ground Sleeves & Mounting Plates

Frequently Asked Questions

What size flag pairs best with a 70 ft pole?
We recommend a 10′×15′ or 12′×18′ flag to maintain proper scale and visibility.

Is professional installation required for 70 ft poles?
Yes. Due to height and weight, 70 ft installations require crane services and certified technicians.

Which material is best for hurricane-prone areas?
Our hurricane-series aluminum with dampening core is engineered for extreme wind zones; fiberglass composites also resist salt-air corrosion.

Can I illuminate a 70 ft pole?
Absolutely—install high-output LED fixtures at the truck or ground ring, with hardwired or remote-controlled power.

Elevate your project with a 70 ft flagpole that combines American-made craftsmanship, heavy-duty engineering, and lasting performance. Shop now!