Rectangular hollow section (RHS) steel tubing combines strength, versatility, and cost efficiency for structural applications. Common in framing, supports, and engineered projects, RHS tubes come in various heights, widths, and wall thicknesses. This guide reviews five relevant products, highlighting their dimensions, material grade, and typical uses to help buyers compare options for construction, fabrication, or home improvement tasks.
| Product | Height | Width | Wall | |
|---|---|---|---|---|
| A500/A513 Carbon Steel Rectangular Tubing (1.5″ x 2.5″) | 1.5″ | 2.5″ | 0.12″ | 12″ |
| A500/A513 Carbon Steel Rectangular Tubing (1″ x 2″) | 1″ | 2″ | 0.065″ | 36″ |
| A500/A513 Carbon Steel Rectangular Tubing (1″ x 3″) | 1″ | 3″ | 0.065″ | 72″ |
| Olivia Tree Chopsticks Non-Slip Stainless | 8.8″ | — | — | — |
Across these options, A500/A513 steel tubing is highlighted for structural versatility, weldability, and affordability, making it a common choice for North American projects. The elongated lengths and various dimensions support a range of fabrication needs, from frames and rails to supports and shelves. In addition, consumer-grade stainless chopsticks illustrate a non-structural product example within the broader steel goods ecosystem often found in hardware and kitchen categories.
A500/A513 Rectangular Tubing, 1.5″ x 2.5″, 12″ Length

This hot-rolled A500/A513 carbon steel rectangular tubing variant measures 1.5 inches in height and 2.5 inches in width with a 0.12-inch wall and a 12-inch length. The A500/A513 designation reflects good tensile strength, weldability, and cost efficiency, making it a staple for short-span structural members, brackets, and small-frame projects. The short length is ideal for modular assemblies or quick-fabrication tasks where pieces are joined to form a larger frame. Typical applications include light structural supports and brackets for shelving or machinery mounts. The hot-roll process yields a slightly rougher exterior that benefits from welding and surface prep before finishing.
A500/A513 Rectangular Tubing, 1″ x 2″, 36″ Length

This 1 inch by 2 inch rectangular tube has a 0.065 inch wall and arrives as a 36-inch length. The A500/A513 steel grade is widely favored for general structural work due to its balance of strength and ductility. Its 36-inch length supports mid-span framing, frames for cabinets or equipment enclosures, and other moderate-duty structures. Weldability is a key advantage for DIYers and fabricators, enabling efficient joining with common welding methods. The longer length reduces joints in longer runs, useful for modular frames or scaffolding components. Surface finish is typically consistent with hot-rolled tube stock, and basic corrosion resistance remains a consideration for outdoor uses without protective coating.
A500/A513 Rectangular Tubing, 1″ x 3″, 72″ Length

This option features a 1-inch by 3-inch profile with a 0.065-inch wall and an extended 72-inch length for bulkier structural members. Hot-rolled A36-grade attributes under the A500/A513 family emphasize robust strength, weldability, and cost efficiency. Applications include larger frames, bridges, building supports, and other mechanical structures. The longer length minimizes field splices, reducing assembly time while maintaining structural integrity for mid- to large-scale projects. Proper handling and transportation are essential for long sections to prevent bending or surface damage.
Olivia Tree Chopsticks Non-Slip Grooves

These chopsticks are made from stainless steel, offering durability and dishwasher-safe convenience. They measure 8.8 inches in length and come in a 10-pair set, with a slip-resistant grooved design and a robust, easy-to-hold build. While not a structural profile, they illustrate how steel products range from heavy-duty construction materials to everyday kitchen tools. The set’s stainless construction resists staining and corrosion, making them suitable for repeated use. Cleaning is straightforward, contributing to practical everyday utility beyond industrial applications.
Buying Guide
When selecting rectangular hollow section steel tubing, consider these key factors to align with project needs and long-term durability.
- Material grade and standard: A500/A513 tubes offer good weldability and strength for structural frames. Confirm compliance with applicable codes and supplier specifications for structural use.
- Dimensions and wall thickness: Height, width, and wall thickness determine load capacity, stiffness, and weight. For heavy-duty frames, thicker walls and larger profiles provide greater resilience.
- Length and fabrication: Longer stock minimizes joints but increases handling challenges. Plan for cutting, grinding, and welding, and ensure equipment can manage length safely.
- Finish and corrosion resistance: Hot-rolled stock is common, but outdoor or damp environments may require protective coatings or galvanization. Surface prep matters for coatings and paint adhesion.
- Weldability and joining methods: MIG/TIG welding compatibility is typical for A500/A513 tubes. Consider joint design, fit-up tolerance, and required post-weld treatments to maximize strength and appearance.
- Applications and load paths: Align tube dimensions with expected loads, spans, and connections. For modular assemblies, standard lengths and readyMade sections can reduce field work.
- Cost and availability: Steel tubing is widely available, but pricing varies with diameter, thickness, and stock levels. Factor in shipping for long pieces and potential cutting waste.
- Related components: Bolts, brackets, end caps, and connector hardware influence assembly ease and final performance. Select compatible hardware to maintain structural integrity.
In summary, choose RHS tubing based on structural requirements, ease of fabrication, and environmental conditions. For DIY projects, balancing profile size with ease of handling can optimize build time and overall strength. Always verify that any non-structural items, like kitchen tools, meet your safety and use-case expectations.