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The Invercargill System | Portable Stadium Tiered Seating

The Invercargill System Specifications


Tiered Light Weight Seating Structure System


This modular seating system is idea for arenas, sporting venues and other facilities, where a flexible fast turn around grandstand seating solution is required.


The Invercargill features options of:

  • Albany Arena and other exceptional seats
  • Upholstered Albany Arena Stadia seats
  • Hot dipped galvanised or powder coated steel work
  • Non slip granulated carpeted walkways

Layout configurations can incorporate corners, control positions, lighting towers, hospitality boxes, side or rear stairs.


The System

  • The system incorporates a number of row options up to 30 rows in varying riser and row spacing configurations.
  • The system comprises a series of stackable modules, comprising a base module (BF) and an upper module (TF)
  • The TF modules (TF1 – T4) are fitted with the seat and are located on top of ta series of base modules (BF1 -BF3).
  • The building blocks of a TF and BF modules are fork lifted into places in sequential manner and are linked together by a quick bolt connector.
  • Each module is nominally 5.3m in width and 1.7m in depth.
  • The system comprises five (5) individual section nominally 5.3m in width, joined together to form one seating bank, nominally 26.6m in width.
  • Removable side and rear hand rails are provided.
  • Seat options are Albany or Solara Plastic Seat.
  • Aisle are nominally 1.0m in width with half steps.
  • All under-structure members are hot dipped galvanised for extended life protection, as well as being colour coded for ease of sequential installation.
  • The system is available in varying platform and riser height configurations.
  • The system features an 18mm exterior grade plywood sealed and finished with an embossed slip resistant surface finish.
  • The system can be stored outdoors without any protection from the elements.
  • The system is modular and designed for rapid install by a Team of 4, utilising a fort truck and with accessible access from the storage area, a 1000 seat system can be installed in four (4) to five (5) hours.
  • The design and linking of the system mean unskilled labour under stadium supervision can be used.
  • The system is strong, robust and meets all safety, weight and loading standards, yet because of its design, utilises light weight constructions principles.
  • The system with the use of additional side and rear handrails, is ready adapted to different seating module configurations.


Design Criteria

  • The occupancy class is public assembly, as specified in AS1170-Part 1 – 1981.
  • Live Loading of 4k N/M2 for fixed seating.
  • Live Loading of 5K N/M2 for gangways, stairs and landings.
  • Bracing is designed to support 5% of the vertical load to accommodate spectator induced horizontal surge loads as specified in BS5973-1981.
  • In addition for outdoor application, wind load considerations are specified in AS1170-Part 2-1983, have been considered.