Square Steel Tubing
- ISO Certified
- Easy to Fabricate
- Durable Construction
- Precision-Engineered
- Made with High-Quality Materials
Your Reliable Square Steel Tubing Manufacturer in China
At Sunnyda, we offer square steel tubing that provides a strong and reliable solution for a wide range of structural applications. With its consistent dimensions, precise shapes, and tight tolerances, you can count on this tubing for stability and durability. Its high tensile strength makes it resistant to extreme temperatures and pressures, ensuring long-lasting performance in demanding environments.
One of the key benefits of choosing our square steel tubing is its efficiency in processing. Unlike other tubing types, it requires fewer steps in production, which helps lower manufacturing costs while maintaining quality. Additionally, it is fire-resistant and maintains its structural integrity, so you won’t have to worry about issues such as twisting, splitting, or shrinking over time.
You can use our square steel tubing for various applications, from building brackets and bases for solar panels to creating sturdy support structures for bridges, buildings, and towers. It’s also ideal for railings, entrance gates, and fencing, adding both function and style to residential and commercial spaces. And if your project requires modifications, this tubing is easy to bend, punch, and drill, making construction more straightforward and efficient.
Whatever your project demands, Sunnyda’s square steel tubing delivers the strength, reliability, and adaptability you need. If you have any questions or need guidance on selecting the right specifications, we’re here to help!
Explore Sunnyda's Square Steel Tubing Solutions
- Data Sheet
| AVAILABLE SIZES | ||||
| Size | OD | Wall Thickness | Length | Weight (Lb/Ft) |
| 1/2″ x 1/2″ x 16ga | 1/2 x 1/2″ | 16ga | 288.00″ | 0.385 |
| 5/8″ x 5/8″ x 18ga | 5/8 x 5/8″ | 18ga | 240.00″ | 0.385 |
| 5/8″ x 5/8″ x 16ga | 5/8 x 5/8″ | 16ga | 240.00″ | 0.496 |
| 3/4″ x 3/4″ x 18ga | 3/4 x 3/4″ | 18ga | 240.00″ | 0.468 |
| 3/4″ x 3/4″ x 16ga | 3/4 x 3/4″ | 16ga | 288.00″ | 0.607 |
| 3/4″ x 3/4″ x 14ga | 3/4 x 3/4″ | 14ga | 288.00″ | 0.754 |
| 3/4″ x 3/4″ x 11ga | 3/4 x 3/4″ | 11ga | 288.00″ | 1.029 |
| 7/8″ x 7/8″ x 18ga | 7/8 x 7/8″ | 18ga | 242.00″ | 0.56 |
| 7/8″ x 7/8″ x 16ga | 7/8 x 7/8″ | 16ga | 242.00″ | 0.717 |
| 1″ x 1″ x 18ga | 1 x 1″ | 18ga | 242.00″ | 0.635 |
| 1″ x 1″ x 16ga | 1 x 1″ | 16ga | 288.00″ | 0.828 |
| 1″ x 1″ x 14ga | 1 x 1″ | 14ga | 288.00″ | 1.036 |
| 1″ x 1″ x 12ga | 1 x 1″ | 12ga | 288.00″ | 1.322 |
| 1″ x 1″ x 11ga | 1 x 1″ | 11ga | 288.00″ | 1.437 |
| 1-1/8″ x 1-1/8″ x 18ga | 1-1/8 x 1-1/8″ | 18ga | 242.00″ | 0.73 |
| 1-1/4″ x 1-1/4″ x 18ga | 1-1/4 x 1-1/4″ | 18ga | 240.00″ | 0.9 |
| 1-1/4″ x 1-1/4″ x 16ga | 1-1/4 x 1-1/4″ | 16ga | 288.00″ | 1.049 |
| 1-1/4″ x 1-1/4″ x 14ga | 1-1/4 x 1-1/4″ | 14ga | 288.00″ | 1.318 |
| 1-1/4″ x 1-1/4″ x 12ga | 1-1/4 x 1-1/4″ | 12ga | 288.00″ | 1.692 |
| 1-1/4″ x 1-1/4″ x 11ga | 1-1/4 x 1-1/4″ | 11ga | 288.00″ | 1.845 |
Advantages of Sunnyda's Square Steel Tubing

Precision-Engineered

High-Strength

Easy to Weld

Effortless Cutting
Used as Structural Support
Sunnyda’s Square Steel Tubing is well-known for its outstanding structural support capabilities due to its inherent strength and geometric design.
This type of tubing provides impressive strength while remaining lightweight, making it ideal for building sturdy structures without the need for excessive materials.
It is commonly used in a variety of applications, including building frames, support columns, beams, and braces in buildings, bridges, and other infrastructure projects.


Machinery Frames Application
Sunnyda’s Square Steel Tubing is built to give you the strength and stability you need when constructing frames for machinery and equipment. Since heavy machinery is constantly exposed to stress and vibration, you need a material that can hold up under pressure, and this tubing delivers.
Its durability helps frames maintain their shape and integrity, even in demanding conditions. Moreover, if you’re working with precision machinery, a stable base is essential for accurate operation. The rigidity of square steel tubing minimizes vibration and movement, giving you the stability needed to maintain precise tolerances and ensure reliable performance in any application.
Application in Agricultural Setting
When you’re working with tractors and heavy-duty farm equipment, you need a framework that can handle the toughest jobs. Sunnyda’s Square Steel Tubing gives you the strength and durability to build reliable plows, harrows, and cultivators that stand up to the demands of the field.
Beyond machinery, this tubing is also perfect for constructing fences, gates, pens, and livestock-handling systems. Its rugged design ensures your structures stay strong and secure, keeping your animals safe while lasting for years to come.


Corrosion-Resistant
At Sunnyda, you’ll find a variety of square steel tubing options made from high-quality materials to suit your needs. One standout choice is our stainless steel square tubing, known for its exceptional corrosion resistance. Thanks to its chromium content, it forms a protective oxide layer that helps prevent rust and wear.
To further enhance durability, we also offer galvanized and powder-coated finishes, ensuring long-lasting performance in any environment. Whatever your project demands, you can count on our tubing to deliver strength and reliability.
Uniformity And Accuracy
At Sunnyda, we prioritize innovation to make your job easier. Our square steel tubing is designed with a consistent cross-section, so you don’t have to deal with complicated angle calculations or fitting adjustments.
This means you can work more efficiently, ensuring accuracy and uniformity in your structures without the extra hassle. By simplifying the construction process, we help you save on labor costs and reduce project timelines, allowing you to focus on getting the job done right with less effort and more confidence.


Cost-Effective
With Sunnyda’s Square Steel Tubing, you get the perfect balance of strength and efficiency. Its high strength-to-weight ratio means you can achieve the durability you need with less material, helping you cut down on costs while keeping the overall weight manageable.
Plus, its versatility makes it a go-to choice for a variety of applications, so you won’t have to juggle multiple materials for different projects. Whether you’re designing, modifying, or adapting your structures, this tubing simplifies the process and helps you save time and money on unnecessary redesigns and rework.
Even Load Distribution
With Sunnyda’s Square Steel Tubing, you get a perfectly balanced design that ensures even load distribution across all four sides. This means greater stability and a higher load-bearing capacity, giving you the strength you need for demanding applications.
Because the square shape minimizes stress points, you don’t have to worry about premature failure or deformation. Whether you’re working on a heavy-duty structure or a precision project, this tubing provides the durability and reliability to support heavier loads with confidence.


ISO Certified
At Sunnyda, our Square Steel Tubing is ISO certified, indicating our commitment to international standards and adherence to strict quality guidelines. This certification reflects our dedication to maintaining high-quality manufacturing processes and ensuring that our products meet the expectations of our customers.














