Cover Plates

Nelsons CNC aluminium cover plates are designed to slide over a square or round post and are used to neatly cover a core hole. Manufactured from high-quality aluminium, they provide a simple yet effective way to conceal exposed openings, fixings and installation imperfections while creating a cleaner, more professional finish.

Suitable for use across fencing, balustrades, gates, privacy screens and architectural aluminium projects, our cover plates complement a wide range of post and extrusion profiles. Explore our square, round and rectangular aluminium cover plate options, offering a durable finishing solution that can be powder coated, anodised or woodgrain finished to seamlessly match the surrounding structure.

  • Cover Plate Square Cover Plate Square

    Cover Plate Square

    Cover Plate Square
    From $4.50
    From $4.50
    Our cover plate squares are available in a range of sizes (shown in mm).
    Select your size
  • Cover Plate Round Cover Plate Round

    Cover Plate Round

    Cover Plate Round
    From $5.50
    From $5.50
    Our cover plate rounds are available in a range of sizes (shown in mm).
    Select your size
  • Cover Plate - Rectangle Cover Plate - Rectangle

    Cover Plate - Rectangle

    From $6.05
    From $6.05
    Our cover plate rectangles are available in a range of sizes (shown in mm).
    Select your size

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30-Days Return

If you are not satisfied with your product, contact us to organise an exchange or refund within 30 days of purchase.

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Customer Support

Unsure what size cover plate you require? Looking for a custom-sized aluminium cover plate? Our expert team is available to answer any questions.

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The benefits of aluminium cover plates

Aluminium cover plates offer a simple and effective way to improve the finish and functionality of your project:

  • Creates a professional finish by concealing core holes, fixings and installation imperfections
  • Enhances visual appeal with a clean transition between the post and mounting surface
  • Corrosion-resistant aluminium is suitable for both indoor and outdoor applications
  • Lightweight yet durable for long-lasting performance without adding unnecessary weight
  • Compatible with powder coating, anodising and woodgrain finishes to match surrounding structures
  • Suitable for a wide range of applications, including fencing, balustrades, gates, privacy screens and architectural projects

Complete your project with quality aluminium cover plates

Whether you're installing fencing, balustrades, gates, privacy screens or architectural aluminium structures, Nelsons CNC cover plates provide the finishing touch that helps create a cleaner, more professional result. 

Designed to conceal core holes and installation imperfections, our aluminium cover plates are a simple yet effective way to enhance the appearance of your project while maintaining a durable, long-lasting finish. Manufactured in-house using CNC machining technology, our cover plates are available in a range of sizes and profiles to suit common post and extrusion applications. 

Looking to complete your project with matching finishing products? Explore our range of aluminium end caps for a seamless finish across your entire installation. If you need assistance selecting the right cover plates or would like to discuss a custom solution, get in touch with our team for expert advice.

Square End Caps
Round End Caps
Aluminium End Caps

FAQs

Are these just decorative, or do they serve a purpose?

While cover plates are often chosen for their visual appeal, they also serve a practical purpose by concealing core holes, gaps and mounting points around posts. This helps create a cleaner finish and improves the overall presentation of the installation.

Can cover plates really improve the look of a project?

Yes. Aluminium cover plates provide a neat transition between the post and mounting surface, helping to hide exposed holes and fixings. This small finishing detail can significantly enhance the appearance of fencing, balustrades and architectural projects.

Do builders and fabricators use cover plates often?

Cover plates are commonly used by builders, fabricators, fencing contractors and installers to achieve a professional finish. They are a simple and effective way to improve the appearance of completed aluminium structures.

What if my project uses round or rectangular posts instead?

Nelsons CNC offers cover plates in a variety of profiles, including round, square and rectangular options, allowing you to find a solution that suits your specific post or extrusion size.

Will aluminium cover plates rust outdoors?

No. Aluminium naturally forms a protective oxide layer that helps resist corrosion, making it well suited to outdoor environments. This makes aluminium cover plates a durable choice for fencing, gates, balustrades and other exterior applications.

Can I powder coat the cover plates to match my fence?

Yes. Our aluminium cover plates can be powder-coated to match surrounding structures and achieve a consistent finish. They can also be anodised or woodgrain finished, depending on your project requirements.

Why choose CNC-machined aluminium cover plates?

CNC machining allows for precise manufacturing and consistent sizing across every cover plate. This ensures a clean fit, professional appearance and reliable quality throughout the range.

We couldn't find the exact size we needed — what now?

If you require a non-standard size or profile, our team may be able to assist with a custom solution. Contact us to discuss your requirements, and we'll help determine the best option for your application.

Press fit aluminium end caps

Square End Caps

Tightly fitting Round end caps

Round End Caps

Aluminium End Caps