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Extreme Balustrade — Framed Baluster

Unex’s Extreme Framed Baluster Barrier styles are a range of framed aluminium panels with vertical uprights, designed for crowd and public loadings C1/C2, C5 and D. This proprietary barrier system saves the cost and time associated with designing a one-off barrier to meet these crowd loads and it can also be finished in a range of colours.

Key Features
  • Standard specifications available for fixing to timber, steel and concrete
  • Specifications for non-standard situations may be provided by Unex Systems upon request
  • Two ranges available; X1500 Series based on a 70mm wide suite and X3000 Series based on a 90mm wide suite
  • Designed for standard heights of 1100mm and 1200mm from finished deck level
  • Wide range of finish options — can be powdercoated or anodised in all standard New Zealand colours
  • Screws together with minimal, if any, welds required
  • Made from 6000 series extruded aluminium alloys
  • Installed only by Authorised Fabricators, available nationwide
NZ Made
NZ Made
NZ-Owned Business
NZ-Owned Business
Scope of Use

Unex’s Extreme Barrier styles have two ranges — X1500 Series and X3000 Series.  

  • X1500 Series is designed to meet classifications C1/C2 and D of AS/NZS 1170.1, which stipulates a 1.5kN/m load on the top edge — twice the load required on a typical residential application.
  • X3000 Series is designed to meet classifications C5 of AS/NZS 1170.1 which stipulates a 3.0kN/m load on the top edge — four times the load required on a typical residential application.

The Extreme Framed Baluster Barriers are typically used for, but not limited to:

  • Grandstands
  • Gymnasiums
  • Surf clubs
  • Shopping centres
  • Restaurants
  • Bars
  • Sports clubs
  • School halls
  • Cafes
  • Public pavilions  

Extreme Barriers are also suited to other situations where large post spacings, a bulkier look, or additional height is required.

There is a wide range of fixing options available for both suits to fix to steel, timber and concrete applications. Site-specific specifications may also be provided upon request for those non-standard situations.

The standard powders used by Unex Systems (Interpon) can be used right down to sea level, provided the care and maintenance instructions are adhered to.

Limitations on Use

Unex's ‘Extreme Barriers’ Range is designed to meet the loading classifications of AS/NZS1170.1 of the New Zealand Building Code and is therefore not applicable to the requirements of the transport code. This design is not suitable for applications such as a vehicle barrier.

Typically Extreme Barriers are not suitable for top-mounting to timber.  

For certain buildings, such as some industrial situations, a higher grade powder coat powder must be specified.  

NZS 3604 Wind Zone Extra High suitable
Extra High Wind Zone
NZS 3604 Wind Zone High suitable
High Wind Zone
NZS 3604 Wind Zone Medium suitable
Medium Wind Zone
NZS 3604 Wind Zone Very High suitable
Very High WInd Zone
NZS 3604 Wind Zone Very High suitable
Very High Wind Zone
Statement of Building Code Compliance

UNEX has designed its Extreme Barriers range to comply with the B1, B2, F2, F4 and F9 requirements of the NZ Building Code and are suitable for occupancy types 'C1/C2', 'C5' and 'D' in accordance with AS/NZS 1170.1: 2002.

For more information, please refer to the “NZ Building Code Compliance” document (right).

Producer Statements for all standard specifications can be created online in the registered area of the UNEX website. 

For non-standard situations not covered by UNEX's specifications, a site-specific PS1 and specification may be prepared by UNEX upon request.


In-Service History

UNEX specialises in designing and manufacturing architectural balustrade systems throughout Australasia having done so since 1981.

These Extreme Barriers have been incorporated in Unex Systems’ range since 2012 — designed in response to the needs of the market place for pre-engineered barriers designed to meet the extremely heavy live load classes 'C1/C2', 'C5' and 'D' of AS/NZS1170.1:2002. It has since been used in a number of jobs right throughout New Zealand.

B1 Structure compliant
B2 Durability compliant
F4 Safety from Falling compliant
Safety from Falling
F9 Restricting Access to Residential Pools compliant
Restricting Access to Residential Pools
UNEX Promotional Catalogue


Installation and Operation
Extreme Barriers Brochure
CAD/PDF Details
Dry Timber, Side Fixing - X1500


Dry Timber, Side Fixing - X3000


Wet Timber, Side Fixing - X1500


Wet Timber, Side Fixing - X3000


Concrete, Top Fixing - X1500


Concrete, Top Fixing - X3000


Concrete, Side Fixing - X1500


Concrete, Side Fixing - X3000


Steel 200UB, Top Fixing - X1500


Steel 310UB, Top Fixing - X3000


Steel 250 PFC, Side Fixing - X1500


Steel 300 PFC, Side Fixing - X3000


Baluster, Side Mounted - X1500 Series


Baluster, Side Mounted - X3000 Series


Baluster, Top Mounted - X1500 Series


Baluster, Top Mounted - X3000 Series


UNEX Systems specialise in the design and manufacture of an innovative range of proprietary architectural barrier and screen solutions.

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