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Metropolis Frameless Glass Balustrade

Blink and you’ll miss the nearly invisible Metropolis, an ideal style for design-forward architecture in an urban setting.  This modern style includes a continuous top rail fitted across the span of recessed, reinforced glass panels of 12mm or 15mm.  The Metropolis’ top rail and cantilevered design provide a sense of additional safety, with no posts to break up the view.

Key Features
  • Designed for standard heights up to 1200mm from finished deck level
  • Range of colours — can be powder coated or anodised in all standard NZ colours
  • Specifications available for an additional handrail option
  • Standard specifications available for fixing to dry/membrane timber, open/wet timber and concrete substrates
  • Specifications for non-standard situations may be provided by UNEX upon request
  • Installed only by Authorised Fabricators, available nationwide
  • Designed for wind speeds up to 64m/s (ULS)
  • Can be installed without a top rail when using a Sentryglas interlayer
  • Structurally pre-engineered and cantilevered from a base channel or fittings
  • Available with an interlinking rail mount on the top or inside with standard toughened glass
  • Makes a design statement for high-end minimalistic architecture
Scope of Use

The Metropolis Frameless Glass Style by UNEX can be used for both external and internal applications, including decks, balconies, stairways and landings, mezzanine floors, pedestrian gates, and pool fences, etc.

Unex Systems’ Arena brand is designed to and complies with 'A', 'B', 'E' and 'C3' loadings of AS/NZS 1170.1:2002 for residential applications, office, and work areas, as well as areas for moving people without obstacles.

There is a number of standard fixing options available to fix to the top of dry/membrane timber (with water-proofing considerations), wet/open timber, and concrete substrates. Site-specific specifications may also be provided upon request for those non-standard situations.

Limitations on Use

UNEX designs for residential situations, office, and work areas, as well as for areas with moving people, however, cannot be used for 'C1/C2', 'C5' or 'D' Loadings. In these applications, UNEX recommends the use of its 'Extreme Barriers' range of styles which has been specifically developed for these higher loadings in crowd and public situations.  

The standard UNEX top rails comply with the handrail profile requirements of D1/AS1 for 'Private' and 'Common' stairways (with the exception of the #ARC and #ART top rails), but do not comply for 'Accessible Stairways or Ramps'. 

For certain buildings such as architectural sky rises (over 3 stories high), light commercial, and high pollution areas, 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 Arena range to comply with the B1, B2, F2 and F4 requirements of the NZ Building Code and are suitable for occupancy types 'A', 'B', 'E' and 'C3' in accordance with AS/NZS 1170.

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 has specialised in designing and manufacturing architectural balustrade systems throughout Australasia and beyond since 1981.  

This Metropolis Frameless Glass Style has been incorporated in UNEX's range since 2006 and was one of the first frameless systems with mechanical fixings on the NZ market. This system has since been used in numerous projects throughout New Zealand including high rise towers, residential apartments, pool fences, etc.

B1 Structure compliant
B2 Durability compliant
F2 Hazardous Building Materials compliant
Hazardous Building Materials
F4 Safety from Falling compliant
Safety from Falling
F9 Restricting Access to Residential Pools compliant
Restricting Access to Residential Pools
UNEX Promotional Catalogue


NZ Building Code of Compliance
Producer Statement (PS1)
Installation and Operation
UNEX Loading Classification
CAD/PDF Details

UNEX delivers exceptional, high-performing balustrade solutions which keep Kiwis safe everywhere where they live, work and play.

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