NCC 2016 Australian National Construction Code 2016
Coverage: Australia Wide
Introduced: 1st of May 2016 (Remains unchanged from previous regulations back to 2005)
In Force Until: 30th of April 2017 (New NCC regulations are introduced on the 1st of May each year)
NCC 2016 Volume 1: Pertains primarily to Class 2 to 9 buildings. (i.e. commercial, public buildings etc.)

NCC 2016 Volume 2: Pertains primarily to Class 1 and 10 buildings. (i.e. houses, sheds, carports etc.)
NCC 2016 Volume 3: Pertains primarily to the Plumbing Code of Australia. 

A Guide to the NCC 2016 Wire Balustrade Regulations
The information below is derived from ProRig Hardware's own testing, experience, and interpretation of the NCC 2016 volumes 1 and 2.
Getting Started
:
One of the first steps when planning your wire balustrade is to have an understanding of the different wire types that are available, the most common wires used for balustrades are 3.2mm 1 x 19
, and  3.2mm 7 x 7 wire (also described as 3mm wire). 3.2mm refers to the diameter of the wire, and 1 x 19, and 7 x 7, refers to the construction or lay of the wire i.e. 1 x 19 wire is made up of 1 single wire with 19 strands, where as 7 x 7 wire is made up of  7 wires with 7 strands within each wire. The NCC also mentions the use of 4mm 7 x 19 although we have found very few situations where it would be more practical to use this size and type of wire as a suitable alternative. The below diagram's demonstrate the construction of each wire type.

 

 

 

 

 

 

 

Will the regulations apply to my balustrade?
it may be possible that your wire balustrade will not need to comply with NCC regulations; below are some common situations and how you can deal with them.

Common Situations
My deck has a drop off less than 1 metre to the area below, what do I need to do?
If the bottom of your deck is less than 1 metre off the ground, then the regulations will not apply to you. It is up to you to decide the most appropriate level of safety, wire spacing and how many support posts you use on your balustrade.

My deck has a drop off more than 1 metre to the area below, what do I need to do? You will need to fit your wires and posts according to NCC Regulations. Below is the applicable table for doing horizontal wire balustrades.

NCC 2016 Tables
In order to satisfy the NCC 2016 regulations for a horizontal wire balustrade your system must either meet the tension requirements set out inTable D2.16a; or must not exceed the maximum deflections set out in Table D2.16c.

NCC2016 Volume 1 Table 2.16a Wire Balustrade Construction - Required Tension for Stainless Steel Horizontal Wires
NCC 2016 Volume 2 Table 3.9.2.1 Wire Balustrade Construction - Required Tension for Stainless Steel Horizontal Wires

Download Printable Version of Table 2.16a/ Table 3.9.2.1

 

NCC 2016 Volume 1 Table 2.16c Wire Balustrade Construction - Max. Permissible Deflection for Stainless Steel Wires.
NCC 2016 Volume 2 Table 3.9.2.3 Wire Balustrade Construction - Max. Permissible Deflection for Stainless Steel Wires.


Download Printable Version of Table 2.16c/ Table 3.9.2.3

So What Works Best when Installing Horizontal Wires?
3.2mm (3mm) 1 x 19We have found that when using 3.2mm 1 x 19 wire rope, having your posts spaced at 1200mm (Max 1500mm) and your wires at 80mm spacing is the easiest way to ensure the tension required for your balustrade will be easily achievable and will pass inspection.

3.2mm (3mm) 7 x 7We have found that when using 3.2mm 7 x 7 wire rope, having your posts spaced at 1200mm (Max 1500mm) and your wires at 80mm spacing is the easiest way to ensure the tension required for your balustrade will be easily achievable and will pass inspection.

This means that a balustrade with wire support posts every 1200mm to 1500mm, and a top rail height of 1 metre (960mm under the top rail) will require 11 runs of wire when spaced at 80mm with a tension that will be easily achievable.

Please Note: The above recomendations are the opinions of ProRig Hardware Pty Ltd derived from our own testing, experience, and interpretation of the NCC regulations and they are intended as a guide only. In some situations it may be more suitable to use different wire, post and handrail specifications. Please email us; info@prorig.com.au or call us on 1800 PRO RIG for advice on current regulations.

Vertical Wires
My deck has a drop off more than 4 metres to the area below, what do I need to do? 
In this situation you are not allowed to use horizontal wires and instead they will need to be vertical. It is highly recomended that you seek professional advice on the design of your vertical balustrade system, please 
contact us on info@prorig.com.au or call us, 1800 PRO RIG for advice.

For more information please visit the ABCB website.


ABOUT PRORIG

ProRig Hardware is a specialist wholesale supplier of stainless steel hardware, wire balustrade systems, wire rope, glass clamps, handrail components, posts, tools, and fastenings to the Australian market. Our extensive range of products can be purchased through our network of resellers located throughout Australia.

SERVICES & SUPPORT

 

ProRig Hardware offers a range of services and support to assist your business in getting the most out of our products including pre-manufactured balustrade wires, post and handrail manufacture, indent ordering, marketing & merchandising support, technical advice, OEM product design, and freight & logistics solutions.

Contact Us
  • 1800 PRO RIG
    +617 5535 6333
  • 1800 776 745
    +617 5535 6366
  • info@prorig.com.au
  • 2/99 West Burleigh Road
    Burleigh Heads Q 4220
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