When selecting anodized aluminum square tubes, durability, precision, and compatibility with framing systems matter most. The following five options come from reputable brands and cover common needs—from DIY frames to industrial machinery supports. Each product features a clear anodize finish or strong aluminum alloy to resist corrosion and wear in varied environments.
Summary of Selected Products
| Product | Brand | Length | Finish | Notes |
|---|---|---|---|---|
| 1. 1.5″ x 1.5″ RT Structural Square Tube | 80/20 | 48″ (12 ft) | Clear Anodized | 1/8″ wall, seamless |
| 2. 1.5″ x 1.5″ RT Structural Square Tube with Holes | 80/20 | 36″ | Clear Anodized | 0.328″ holes on 1.5″ centers |
| 3. 1.5″ x 1.5″ RT Structural Square Tube | 80/20 | 18″ | Clear Anodized | Seamless, 1/8″ wall |
| 4. Aluminum Structural Square Tube | Randall Manufacturing | 6 ft | Clear Anodized | 1″ width, 0.050″ wall |
| 5. 1″ x 1″ Aluminum Square Tube | Zadery | 48″ | Natural Mill Finish | Seamless, 0.125″ wall |
80/20 RT Structural Square Anodized Tube — 1.5″ x 1.5″ (48″ Long)
This seamless aluminum square tube measures 1-1/2″ x 1-1/2″ with a 1/8″ wall thickness. Made from 6063-T6 aluminum and finished with a clear anodize, it supports a wide range of 80/20 DIY framing and industrial applications. Ideal for framing systems, machinery supports, architectural accents, and static models. Its clean ends and precise tolerances enable reliable, repeatable cuts and fits for modular assemblies.
80/20 RT Structural Square Anodized Tube — 1.5″ x 1.5″ (36″ Long) With Holes
This 1-1/2″ square tube also features a 1/8″ wall thickness with 0.328″ holes aligned on 1.5″ centers. The 6063-T6 aluminum in a clear anodized finish combines structural strength with corrosion resistance, making it suitable for industrial fittings, machinery frames, and DIY projects. The holes enable quick mounting and integration with connectors for modular builds. Clean cuts support precise, professional results for frames and enclosures.
80/20 RT Structural Anodized Tube — 1.5″ x 1.5″ (18″ Long)
This 18″ version matches the 1-1/2″ square profile with a 1/8″ wall and a clear anodize finish. It is well-suited for small-scale frames, display racks, light-duty enclosures, and model building. The seamless construction ensures consistent dimensions for dependable assembly with other 80/20 components and accessories.
Randall Manufacturing Aluminum Structural Square Tube — 6′ x 1″
Randall Manufacturing offers a 6-foot-long, 1-inch wide square aluminum tube with a 0.050″ wall, finished in clear anodize. This option suits larger framing projects, machine guards, and supports requiring longer spans. The 6063 alloy provides a solid balance of strength and weight, while the anodized layer adds corrosion resistance and an attractive, durable finish. It is easy to clean and paint if needed for customized applications.
Zadery 1×1 Aluminum Structural Square Tube
This Zadery tube measures 1″ x 1″ with a 0.125″ wall and arrives in a natural mill finish rather than a protective anodize. It is a seamless bare aluminum option suitable for DIY framing, structural projects, or decorative builds where painting or finishing is planned. While not anodized, it remains corrosion resistant and compatible with many framing accessories for home projects.
Buying Guide: Key Purchase Considerations And Comparisons
- Material and alloy: Most anodized square tubes use 6063-series aluminum for good strength-to-weight ratio and corrosion resistance. Check the alloy grade if you require specific mechanical properties or finishing compatibility.
- Wall thickness: Common thicknesses range from 1/8″ to 1/4″. Thicker walls offer higher rigidity and load-bearing capacity but increase weight and cost. Ensure the thickness matches your design tolerances and fastener options.
- Finish quality: Clear anodize provides a durable protective layer with a bright, uniform appearance. Some options may be uncoated or mill-finish; plan for finishing steps like painting if needed for aesthetics or additional corrosion resistance.
- Dimensional accuracy: Look for precise outer dimensions and hole placements when present. Tolerances influence how frames fit together with connectors and other profiles in modular systems like 80/20.
- Length options: Manufacturers offer various lengths (18″, 36″, 48″, 6 ft). Choose lengths that minimize waste and suit your project’s span and shipping constraints.
- Availability and sourcing: Domestic manufacturing options may offer better lead times and customer service. Consider brands with clear support and compatibility with connectors and accessories you already use.
- Application suitability: For structural frames, machinery guards, or display racks, ensure the tube’s strength, rigidity, and finish align with your environment (indoor, outdoor, or corrosive settings).
- Pricing and value: While anodized tubes offer durability, compare cost per length and per weight. Factor in required hardware, connectors, and potential upgrades to meet project goals.
Across the options, anodized square tubes from 80/20 and Randall Manufacturing provide reliable performance with consistent finishes, making them suitable for both professional builds and hobby projects. When choosing, align tube dimensions, wall thickness, and hole features with your specific mounting patterns and connector systems to ensure a seamless build experience.