Galvanized Steel Bollards: Sizes & Specifications
From galvanized steel bollards to telescoping square tubing for signs and traffic control, our triple-layer coated products are DOT-approved and trusted nationwide.
Whether you need bollard tubing for parking lot protection or signpost tubing for public works projects, we deliver unbeatable quality that performs in the toughest environments.
Triple-Coat Corrosion Protection
Sonco’s steel tubing is engineered with three layers of corrosion resistance:
- Hot-dip galvanization (ASTM A-653 G-90)
- Conversion coating for added durability
- Clear organic topcoat to resist rust, weather, and wear
Combined with high-strength steel (Grade 50), our tubing provides exceptional load-bearing performance, whether it’s installed as a security bollard or a roadside signpost.
Learn More About our Triple-Coat Process
Bollard & Signpost Sizes and Options
Thanks to our high-frequency welding and roll-forming process, all tubing can be cut, drilled, or swaged to specs without compromising the anti-corrosion layers. No flaking. No cracks.
Galvanized Steel Bollards
Ideal for parking lots, storefronts, and traffic safety. Choose from a wide range of Schedule 40 tubing with optional colored covers.
Telescoping Signpost Tubing
Smooth, snug-fit square tubing in 5 standard sizes (1.5″ to 2.5″) for easy installation without special tools. Available perforated or solid, and cut to custom lengths.
Why Sonco Pipe & Tube?
50 Years of Industry Expertise
We’ve delivered top-notch service and products for nearly 50 years.
Fast, Just-in-Time Delivery Nationwide
Reliable delivery in whatever quantity you need
Custom Solutions with Competitive Pricing
Steel tubing tailored to your needs – and your budget
DOT approved
We take pride in our work, and all Sonco products adhere to the strictest industry standards.
Large inventory
We make it easy to get your job done right and on time.
Ready to Get to Work?
Get steel that stands up to anything.
Frequently Asked Questions
What are the OD, ID, and wall thickness specs for a 6-inch galvanized pipe bollard?
A standard 6-inch Schedule 40 galvanized pipe bollard has an outside diameter (OD) of 6.625 inches, an inside diameter (ID) of 6.065 inches, and a wall thickness of 0.280 inches. These dimensions meet ASTM A53 specifications for structural pipe applications.
Sonco stocks 6-inch galvanized bollard pipe in standard lengths ready for cut-to-size processing, and the Schedule 40 wall thickness provides the impact resistance required for parking lot, storefront, and perimeter security installations.
What is the standard length and weight of a 6-inch galvanized bollard?
Standard 6-inch Schedule 40 galvanized bollard pipe weighs approximately 18.97 pounds per linear foot and is typically stocked in 21-foot mill lengths.
For installation, bollards are commonly cut to finished heights between 36 and 48 inches above grade, with an additional 18 to 24 inches embedded below grade in a concrete footing. Sonco offers cut-to-length services so bollard sections arrive ready for installation without requiring on-site cutting.
What is the expected lead time if a steel product is out of stock?
Lead times for out-of-stock steel products vary based on the item and current mill production schedules.
Standard galvanized pipe and tubing products typically have a replenishment lead time of 2 to 4 weeks from domestic mills. For specialty sizes or large-volume orders, Sonco’s sales team can provide project-specific lead time estimates and work with multiple mill sources to expedite delivery when timelines are critical.
What services does Sonco offer beyond standard bollard sales?
Beyond supplying galvanized pipe for bollard applications, Sonco provides cut-to-length processing, custom cap welding, and base plate fabrication so bollard assemblies are ready to install upon delivery.