Square Tubing
Square Steel Tubing & Structural Steel Stock
Our commercial-grade square steel tubing is the premier choice for professional contractors, fabricators, and metal builders across Texas who demand rugged, high-performance structural steel. Engineered as heavy-duty structural steel tubing (HSS), these square steel profiles provide maximum resistance against bending, twisting, and physical impact - delivering the ultimate foundation for high-security perimeters, structural framing, and custom gate assemblies.
Whether you are shop-welding commercial gate frames, fabricating industrial racking, or constructing ornamental steel fence runs around a residential estate, our premium square steel tubing offers the precise architectural integrity and long-term stability required for demanding jobsites.
Key Features & Performance Benefits
- High-Yield Structural Integrity: Formed from high-tensile carbon steel to deliver exceptional load-bearing capacity and wind-load resistance for heavy perimeter fencing and structural frameworks.
- Dual Weatherproof Finish Options: Available in raw hot-dip galvanized for maximum zinc corrosion protection or architectural black powder-coated finishes to resist rust, moisture, and intense UV exposure.
- Extensive Dimensions & Wall Thicknesses: Stocked in outer profile sizes from 5/8" up to 4", wall thicknesses spanning 14 gauge to 18 gauge, and pre-cut lengths ranging from 3 ft to 12 ft.
- Fabricator-Friendly Weldability: Clean raw steel beneath protective profiles allows for deep weld penetration, smooth arc welding, and rapid shop fabrication.
- Dimensional Precision: Smooth surfaces and crisp geometric corners ensure flush joint alignment for heavy-duty hinges, mounting brackets, and baseplates.
Commercial & Industrial Applications
Our square structural steel tubing is widely specified across Texas for diverse fabrication and security projects:
- Commercial Fencing & Security Perimeters: Structural steel posts and rails for high-security industrial fence runs.
- Custom Gate Fabrication: Heavy-duty frames for sliding cantilever gates, wide-span swing gates, and automated entry barriers.
- Industrial & Warehouse Infrastructure: Framework for mezzanine floors, equipment cages, storage racks, and loading dock guardrails.
- Agricultural & Ranch Enclosures: Cattle pens, equipment staging enclosures, and heavy-duty livestock fencing.
- Municipal & Public Facilities: Campus security barriers, park perimeters, and municipal guardrail framing.
Available Product Specs & Sizes
Explore our full inventory of square steel tubing stocked at our Kennedale, Texas depot for same-day pickup or regional delivery:
- 5/8" Square Tubing (18 Gauge): Available in 3 ft, 4 ft, 5 ft, and 6 ft pre-cut lengths for ornamental infill pickets and light framing.
- 3/4" Square Tubing (18 Gauge): Stocked in 3 ft to 10 ft lengths for decorative rail sections and gate bracing.
- 1" Square Tubing (16 Gauge): Available in 8 ft and 10 ft lengths for commercial security pickets and industrial enclosures.
- 1-1/2" Square Tubing (16 Gauge): Stocked in 8 ft and 10 ft profiles for heavy gate frames, trailers, and structural rails.
- 2" Square Steel Tubing (16 Gauge): Available in 3 ft to 10 ft lengths—the industry standard for commercial fence posts and gate frames.
- 2-1/2" Heavy-Duty Tubing (14 Gauge): Stocked in 3 ft to 10 ft lengths for heavy structural posts and wide-span entryways.
- 3" Structural Steel Tubing (14 Gauge): Available in 8 ft to 12 ft lengths for high-security commercial posts and cantilever gate towers.
- 4" Extra-Heavy Steel Tubing (14 Gauge): Stocked in 10 ft, 11 ft, and 12 ft lengths for tall industrial perimeter posts and massive vehicle gate supports.
Contact Us
To discuss specifications or request a tailored quotation, please contact our expert team at (945) 941-2111 or email sales@firstfenceusa.com