Choosing the right 1-inch square tubing can impact the strength, weight, and finish of your project. This guide highlights five top options across steel and aluminum, focusing on common sizes, wall thickness, and length to help you compare suitability for structural frames, DIY builds, and fabrication tasks. Each entry provides key material details, typical applications, and standout features to aid in selecting the best 1″ square tube for your needs.
| Product | Brand | Material | Size | Length |
|---|---|---|---|---|
| Small Parts Unpolished 1″ Square Tube | Small Parts | Steel | 1″ x 1″ | 4′ Length |
| Gisafai Aluminum Square Tubing 1″ OD | Gisafai | 6061 Aluminum | 1″ OD | 24″ Length |
| Rocaris Steel Tubes 1″ x 1″ x 1/8″ | Rocaris | Steel (A36) | 1″ x 1″ | 12″ Length |
| Evecad Aluminum Tube 1″ x 1″ | Evecad | 6063-T6 Aluminum | 1″ x 1″ | 48″ Length |
| OnlineMetals Aluminum 6063-T52 1″ x 1″ | Online Metals | 6063 Aluminum | 1″ x 1″ | 72″ Length |
Small Parts Unpolished 1″ Square Tube — Steel

The Small Parts 1″ square tube is a mill-finished steel section with a 0.083″ wall thickness. The model number is ALL22169-4, and it arrives in a 4′ length, suitable for custom frames and structural assemblies. Steel provides solid load-bearing performance and good rigidity for general fabrication tasks. Applications include DIY frames, support rails, and light structural projects where a durable, straight tube is needed.
Gisafai Aluminum Square Tubing 1″ OD

Gisafai offers two 1″ OD aluminum tubes, 24″ long, crafted from 6061 aluminum for durability and corrosion resistance. The tubes are suitable for furniture framing, DIY projects, and machinery housings where a lighter option is beneficial. The set includes two pieces, enabling quick pairing for frames or multi-piece projects. Aluminum provides good strength-to-weight ratio and easier fabrication with welding or cutting.”,
Rocaris 1″ x 1″ Steel Tube (12″ Length)

Rocaris produces a 1″ x 1″ hot-rolled steel square tube with 1/8″ wall thickness and an overall 12″ length. Made from A36 steel, it offers high load-bearing capacity and a smooth, rust-resistant surface when treated. This size is well-suited for compact frames, brackets, supports, and light structural components in automotive or industrial projects. The hot-rolled finish provides predictable machining and compatibility with welding and fasteners.
1/8″ x 1″ x 1″ Mild Steel Square Tube

This option lists a 1″ x 1″ steel square tube with a 1/8″ wall and a selectable length. Mild steel provides robust strength and accessibility for welding and fabrication. It is suitable for frames, brackets, and racks where cost-effectiveness and ease of fabrication are priorities. The 1/8″ wall offers a balance between weight and structural rigidity for moderate-load applications.
Evecad Aluminum 1″ x 1″ Square Tube 48″

Evecad provides a 1″ x 1″ aluminum square tube, 48″ long, with a 1/8″ wall thickness. Made from 6063-T6 aluminum, it emphasizes strength and corrosion resistance suitable for structural supports, DIY projects, and home improvements. The natural mill finish and clean square cuts aid handling, assembly, and finishing work in both indoor and outdoor applications.
OnlineMetals Aluminum 6063-T52 Square Tubing

OnlineMetals offers a 1″ x 1″ aluminum tube with a 1/8″ wall, 72″ length, and 6063-T52 alloy. This option combines excellent corrosion resistance, good weldability, and a longer available length for taller frames or projects requiring extended spans. The beam’s architecture makes it a suitable choice for architectural accents, frames, and structural assemblies where precise dimensions matter.
Buying Guide
- Material choice: Aluminum (6061/6063) provides lighter weight, corrosion resistance, and ease of fabrication, ideal for non-load-bearing frames or where weight matters. Steel (A36 or similar) offers higher strength and stiffness at greater weight, suitable for heavier structural components or welded frames.
- Wall thickness: Common options range from 1/8″ to around 0.083″ or more. Thicker walls increase rigidity and load capacity but add weight and cost. Choose based on the expected load and required rigidity.
- Length and orientation: Longer lengths reduce joins but may require cutting or machining. Consider whether you need continuous runs (e.g., 72″ tubes) or multiple shorter sections (e.g., 24″ or 12″).
- Finish and corrosion resistance: Aluminum tubes resist corrosion naturally and are suitable for outdoor or humid environments. Steel requires coating or paint for outdoor use and may rust without protection.
- Machinability and fabrication: Aluminum welds well with appropriate techniques; steel also welds reliably but may require different filler materials. If you plan to cut, drill, or weld, verify compatibility with the chosen alloy and wall thickness.
- Standardization and sourcing: 1″ square tubes are widely available in various lengths and alloys. Ensure that your chosen product matches your required inner diameter, outer dimensions, and wall thickness to fit connectors, brackets, or other components you plan to use.
- Application perspective: For DIY furniture or framing projects, aluminum is often favored for lightness and aesthetics, while steel suits heavy-duty frames and industrial builds that demand higher rigidity and strength.