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Patio Tube: Common Sizes & Expert Buying Guide

When it comes to building outdoor structures such as pergolas, carports, verandas, or fencing, patio tube is one of the most reliable and versatile materials you can use. Known for its clean look, structural strength, and easy fabrication, patio is a type of steel hollow section specifically designed for outdoor and light structural applications. Its popularity continues to grow across residential, commercial, and industrial projects because it provides both strength and aesthetic appeal without unnecessary bulk.

What is Patio Tube?

Patio tube is a rectangular or square hollow steel section that has been manufactured with smooth edges and consistent wall thickness. Unlike rougher industrial steel sections, patio is designed with a more finished appearance, making it ideal for exposed applications where looks matter as much as strength. It is typically made from mild steel and can be supplied with a galvanised or powder-coated finish for enhanced corrosion resistance.

patio tube

Why Use Patio Tube?

When choosing materials for outdoor construction, the balance between strength, appearance, and cost is always at the top of the list. This is exactly where patio tube excels. It has become one of the most preferred options for builders, fabricators, and even DIY homeowners. Below are the key reasons why patio stands out compared to other steel sections or timber alternatives.

1. Durability That Lasts

Patio tube is manufactured from high-quality mild steel, giving it the strength to support structural loads without being overly heavy. For example, in a pergola or carport, the steel must withstand not only the weight of the roof materials but also external factors like wind loads. Patio steel offers this reliability without the bulk of solid steel. Unlike timber, which can warp, crack, or deteriorate over time, steel hollow sections maintain their shape and integrity for decades. This long-term durability means fewer repairs and replacements, ultimately saving money and time.

2. Excellent Corrosion Resistance

Outdoor structures are constantly exposed to moisture, rain, and, in some coastal areas, salt-laden air. Left untreated, standard steel would quickly rust and weaken. Patio section, however, is commonly available with a galvanised finish, which provides a protective zinc coating. This barrier significantly increases its lifespan by preventing corrosion. Some suppliers also offer powder-coated patio tube, adding another protective and aesthetic layer. This makes it especially well-suited for carports, garden pergolas, and fencing where both strength and weather resistance are essential.

3. Easy to Work With

Another advantage is how simple patio is to fabricate. Unlike heavier industrial steel beams, patio tube can be cut, drilled, and welded with standard tools, making it an excellent choice for both professional builders and DIY projects. For instance, someone building their own backyard pergola can easily cut the tube to the desired size, weld the joints, or even bolt sections together with pre-drilled holes. The consistent wall thickness and smooth edges also reduce the chances of fabrication errors. This ease of handling not only saves time on-site but also reduces overall construction costs.

4. Neat, Professional Appearance

Because patio tube is often used in visible areas—patios, fencing, carports, verandas—it is designed with a cleaner, more polished look than rough industrial sections. The straight edges, uniform finish, and optional powder coating allow it to blend seamlessly with both modern and traditional architectural styles. A well-built patio frame with square or rectangular patio doesn’t just provide support—it also adds to the overall aesthetic of the property. For homeowners who value both strength and style, patio tube offers the perfect solution.

5. Versatility for Different Projects

Patio tube is incredibly versatile, making it suitable for a wide range of applications beyond patios. Some common uses include:

  • Fencing and Gates – Strong, lightweight, and visually neat, making it ideal for both residential and commercial fencing.
  • Carports and Pergolas – Provides reliable structural support while maintaining a modern look.
  • Handrails and Balustrades – Easy to fabricate into custom designs that meet safety standards.
  • Garden Frames and Outdoor Fixtures – Perfect for sheds, furniture frames, or decorative garden structures.
  • Light Industrial Applications – Used in light framing, racks, and supports.

This adaptability means that whether you’re working on a large-scale construction project or a weekend DIY build, patio can be tailored to your specific requirements.

patio tube

6. Cost-Effective Choice

Finally, patio tube represents excellent value for money. It delivers structural reliability and corrosion resistance without the cost of heavy industrial steel. Compared to timber, it requires less maintenance over time and won’t suffer from issues like termite damage, rotting, or warping. This makes it a smart long-term investment for both homeowners and businesses.

Common Sizes of Patio Tube

Patio steel tube comes in a variety of dimensions to suit different project needs. Typical stock sizes include:

  • Square Patio Tube:
    • 25 x 25 x 1.6 mm
    • 30 x 30 x 1.6 mm
    • 40 x 40 x 2.0 mm
    • 50 x 50 x 2.0 mm
    • 65 x 65 x 2.5 mm
    • 75 x 75 x 3.0 mm
  • Rectangular Patio Tube:
    • 25 x 38 x 1.6 mm
    • 30 x 60 x 2.0 mm
    • 40 x 75 x 2.0 mm
    • 50 x 100 x 3.0 mm
    • 65 x 125 x 3.0 mm

Lengths are usually supplied in 6.5m or 8.0m standard lengths, though suppliers can cut to size.

Common Applications of Patio Tube

Patio tube is widely used in projects such as:

  • Patio and pergola frames
  • Carport structures
  • Handrails and balustrades
  • Gates and fencing
  • Garden sheds and light framing
  • Signposts and outdoor fixtures

Tips for Choosing the Right Patio Tube

Selecting the right patio tube for your project is just as important as the design itself. While patio is known for its strength, appearance, and versatility, making the wrong choice in size, thickness, or finish can affect both safety and aesthetics. Here are some expanded tips to help you pick the best option:

1. Check Load Requirements

Every structure has its own load-bearing demands. For example, a simple pergola supporting climbing plants will not require the same strength as a large carport designed to hold roofing sheets and withstand strong winds. When selecting patio tube, always consider the wall thickness (typically ranging from 1.6 mm to 3.0 mm or more) and the overall size of the tube. Larger spans or heavier loads will need thicker walls and wider profiles to ensure structural stability. Consulting a builder or engineer before purchase is a smart step for bigger projects.

2. Select the Right Finish

The environment where your patio will be used plays a major role in choosing the right finish.

  • Galvanised Patio Tube – Best for outdoor applications where exposure to rain and moisture is constant, as the zinc coating protects against rust.
  • Powder-Coated Tube – Provides both protection and an attractive finish, with colour options to match your home or garden aesthetic.
  • Uncoated Mild Steel Tube – Suitable for indoor or covered areas where corrosion is less of a concern, but usually requires painting or treatment.

In coastal areas, galvanised or double-coated finishes are strongly recommended, as salty air accelerates rusting.

3. Match the Aesthetic

While functionality is critical, appearance also matters—especially for visible outdoor structures like patios, carports, and fencing. Square patio tube offers a modern, uniform look and works well for minimalist or contemporary homes. On the other hand, rectangular patio tube can provide a slimmer profile for certain designs, making it suitable for frames, rails, or decorative applications. Think about how the finished structure will blend with your home’s architecture before deciding.

patio tube

4. Consider Ease of Fabrication

Fabricators often balance strength with workability. Thinner-walled patio is easier to cut, drill, and weld, making it a good choice for DIY projects or jobs where custom adjustments are required on-site. However, thinner sections may not provide enough load capacity for heavy-duty applications. Thicker-walled patio tube is more robust but requires more advanced tools and experience to fabricate. Choosing the right thickness depends on whether the priority is ease of handling or maximum strength.

5. Buy from Trusted Suppliers

Not all patio tube is manufactured to the same standard. In Australia, always ensure that your steel complies with AS/NZS 1163 for structural steel hollow sections. This guarantees that the tube has been tested for mechanical performance and durability. Buying from trusted suppliers also ensures consistent sizing, reliable finishes, and access to advice on the best product for your project. While cheaper alternatives might look appealing, poor-quality steel can compromise safety and longevity.

Buy Patio Tube in Perth

When it comes to building a reliable outdoor structure, sourcing the right patio tube in Perth is just as important as the design itself. Perth’s climate—hot summers, occasional heavy rains, and coastal exposure in many areas—means that quality and durability should be your top priorities. Choosing patio that meets Australian Standards ensures your structure will last longer, resist rust, and maintain its strength over time.

Local suppliers in Perth stock a wide variety of patio tube sizes, from lightweight 25 x 25 mm options for small garden frames to heavy-duty 100 x 100 mm or larger sections for carports, patios, and fencing. Galvanised patio is especially popular here, as the zinc coating provides strong protection against corrosion—perfect for the coastal air that many Perth suburbs experience. Powder-coated finishes are also available if you want your structure to match your home’s style while still offering long-lasting weather resistance.

Buying locally not only gives you access to the right product for your project but also ensures faster delivery, personalised advice, and competitive pricing. Whether you’re a builder, a fabricator, or a homeowner tackling a DIY project, choosing a Perth-based steel supplier means you’ll get support tailored to local conditions and building needs.

If you’re planning a new patio, pergola, carport, or any custom outdoor frame, now is the time to buy patio tube in Perth from trusted suppliers who understand both the product and the unique requirements of West Australian projects.

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