Balustrade Wire

Choosing the Right Balustrade Wire

Balustrade wire, also known as balustrading wire, is used across residential and commercial cable balustrade systems. Most wire balustrade systems in Australia use 3.2mm 316 stainless steel wire rope, typically in a 1x19 construction. This provides high strength, minimal stretch, and a clean, straight appearance when tensioned between posts.

For most residential applications, 3.2mm diameter wire is commonly used. Larger or commercial-style installations may use heavier diameters such as 4mm wire, depending on the system design and project requirements.

When selecting balustrade wire, consider:

• Wire construction – 1x19 is the most common for balustrades due to its rigidity and low stretch
• Material grade – 316 stainless steel is recommended for outdoor and coastal environments
• Finish – stainless steel or black systems depending on the project
• Compatibility – ensure the wire suits your fittings or wire balustrade kit

Wire Types for Balustrade Systems (1x19 vs 7x7 vs 7x19)

Balustrade wire is available in different constructions, each with different characteristics:

• 1x19 wire – stiff, straight, and the most common choice for wire balustrade systems. It offers low stretch and a clean, architectural finish, making it ideal for hydraulically swaged systems.
• 7x7 wire – more flexible than 1x19, making it easier to handle during installation. Commonly used in mechanical swaging systems.
• 7x19 wire – very flexible construction, sometimes referenced in standards, but less commonly used in balustrade systems due to increased stretch and movement.

Both 1x19 and 7x7 stainless steel wire are used in residential balustrade systems, with the choice depending on the desired finish, installation method, and system design.

Balustrade Wire Lengths (Per Metre vs Full Reels)

Balustrade wire is most commonly supplied on reels, allowing you to cut each wire run to length on site. This is the preferred option for most installations, as it provides flexibility and reduces waste when working across multiple sections.

• Wire reels – ideal for most projects, allowing wire to be measured and cut as needed
• Per metre lengths – available for smaller jobs, but generally less efficient and more expensive per metre

Pre-cut or factory-swaged wire runs may also be used in some systems, but these require accurate measurements and are typically suited to specific project setups.

How Balustrade Wire Works in a System

In a typical wire balustrade section:

• The wire is run horizontally between end posts
• It is tensioned using compatible terminal fittings or kits
• Intermediate posts support the wire along the span
• A complete section typically includes 11 wire runs with spacing up to 80mm

Typical wire balustrade layout showing post spacing, wire spacing and handrail configuration:

The performance of the system depends on correct installation, appropriate post spacing, and proper tensioning of each wire run.

Choosing the Right Wire for Your Project

If you're unsure which wire to choose, a simple approach is:

1. Select 3.2mm 316 stainless steel 1x19 wire for most standard hydraulic swage balustrade systems
2. Choose wire rope reels for flexibility and to suit on-site measuring and cutting
3. Check that the wire matches your fittings or wire balustrade kit

For mechanical or DIY systems, more flexible wire such as 7x7 or 7x19 may be a better option.

This covers the most common residential wire balustrade applications in Australia.

Related Products and Guides

To complete your system, you may also need:

• Wire balustrade kits
• Wire balustrade posts
• Stainless steel fittings

For more information, see:

• Wire balustrade installation guide
• Wire balustrade standards in Australia