Our Aluminium Base Plate Range
Nelsons CNC specialises in high-quality aluminium base plates designed for secure and stable installation. Our base plates are CNC-machined, making them ideal for aluminium posts used in fencing, balustrades, handrails and structural applications.
With a 10mm thickness and pre-drilled mounting holes, they are ready to be welded onto posts and fastened to concrete slabs or timber decks.
With various sizes available online, our aluminium post-base plates offer a solution for every project:
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Base Plate - Rectangle
Ideal for structural applications that require enhanced support, this base plate made of aluminium provides a solid foundation for aluminium posts, offering dependable performance in fencing, balustrades or industrial structures.- Regular price
- From $8.50
- Sale price
- From $8.50
- Regular price
Our base plate squares are available in a range of sizes (shown in mm). -
Base Plate - Square
A versatile option that provides even load distribution, making it an excellent choice for both residential and commercial applications. Its construction is suitable for fences, handrails, facades and other load-bearing installations.- Regular price
- From $7.55
- Sale price
- From $7.55
- Regular price
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Base Plate - Premium
Built for heavy-duty use, this base plate offers enhanced durability to withstand high loads and tough conditions. It is designed for demanding environments where extra strength is essential, such as large-scale construction projects, industrial settings or commercial applications.- Regular price
- From $14.00
- Sale price
- From $14.00
- Regular price
Our base plate squares are available in a range of sizes (shown in mm). -
Base Plate - Round
This base plate offers a clean, modern finish, perfect for aesthetic applications where design and functionality go hand in hand. It is particularly useful for projects that require circular support while maintaining structural integrity.- Regular price
- $22.00
- Sale price
- $22.00
- Regular price
Our base plate rounds are available in a range of sizes (shown in mm).
Aluminium Base Plates vs Steel Base Plates in Australia
When selecting a base for a structural or decorative project, choosing the right material is essential for longevity. In the Australian climate, the choice between an aluminium base plate and a steel base plate often comes down to corrosion resistance and ease of installation.
Corrosion Resistance and Longevity
The primary advantage of aluminium is its natural ability to resist rust. Unlike a standard steel base plate, which requires galvanising or powder coating to prevent oxidation, aluminium forms a protective oxide layer. This makes it the preferred choice for projects in coastal areas or regions with high rainfall, as it will not degrade when exposed to salt air or moisture.
Weight and Installation
Aluminium is significantly lighter than steel, making posts easier to handle and position during welding and mounting. For installers working on timber decks or internal balustrades, the reduced weight of an aluminium post base plate makes for a faster, more efficient workflow without sacrificing structural integrity.
Material Compatibility
For projects that use aluminium posts, a matching base plate is a technical requirement. Welding a steel plate to an aluminium post is not possible without specialised transition materials, which adds cost and complexity. Using a 10mm CNC-machined aluminium plate results in the entire assembly remaining uniform in its thermal expansion and contraction, preventing stress fractures at weld points.
Comparison Summary: Aluminium vs. Steel
|
Feature |
Aluminium Base Plate |
Steel Base Plate |
|
Corrosion Resistance |
Naturally rust-resistant; ideal for coastal areas |
Prone to rust unless galvanised or treated |
|
Weight |
Lightweight; easier for solo installations |
Heavy; can be difficult to maneuver |
|
Welding Compatibility |
Ideal for aluminium posts |
Not compatible for direct welding to aluminium |
|
Maintenance |
Low; requires simple cleaning |
High; may require re-coating to prevent rust |
|
Typical Thickness |
10mm for structural stability |
Varies; often requires more bulk for rust allowance |
Get the Perfect Aluminium Base Plate for Your Project
At Nelsons CNC, we’re committed to providing high-quality aluminium base plates that deliver strength, precision and durability. With a wide range of sizes and designs, including rectangular, square, round and premium base plates, we have the right solution for any application.
Need help choosing the best base plate for your project? Our experts are here to assist.
Explore our full range online or contact us today for expert advice and custom sizing options!
Same Day Shipping
Orders received by 12pm are sent the same day by Overnight Express Shipping. For our international customers, please visit our shop page for end caps.
FAQs
What is an aluminium base plate, and why would I need one?
An aluminium base plate is a structural component that provides a flat, stable surface for mounting posts to concrete or timber foundations. It is essential for ensuring that vertical posts, such as those used in fencing, balustrades and handrails, remain secure and upright.
Why do so many installers in Australia prefer aluminium base plates over steel base plates?
Installers in Australia frequently choose aluminium because it does not rust when exposed to salt air or moisture, making it ideal for coastal projects. Aluminium is also much lighter than steel, making it easier to handle and position during installation. Additionally, using an aluminium post base plate with an aluminium post allows for a direct weld, ensuring the entire structure shares the same durability and thermal properties.
What if none of the standard sizes fit my posts or project?
Nelsons CNC provides custom sizing options for projects that require unique dimensions or hole placements. If a standard size listed online is not suitable, customers can provide specific requirements to have a bespoke base plate manufactured. This ensures a perfect fit for any structural application or specialised post design.
Do aluminium base plates support both round and square posts?
The base plates are versatile and support both round and square post profiles. Because they are CNC-machined for precision, they provide a perfectly flat surface for welding various post shapes. This makes them a reliable solution for a wide range of projects, including modern square-post fencing and traditional round-post handrails.
How do base plates improve the look of a project, not just the strength?
While the primary function of a base plate is structural, CNC machining ensures a clean, professional finish that enhances the overall aesthetic of a build. The precise edges and uniform 10mm thickness provide a high-end look compared to rough-cut alternatives. When welded and finished correctly, the base plate creates a sleek transition between the post and the ground, resulting in a polished appearance for balustrades and fencing.