Deceptively Durable

The Sigma chair was developed by our partner Forum Seating to provide one of the most durable sporting chairs on the market.

The chair has exceptional strength for its class, being certified to the highest level (grade 4) of the strength standard EN 12727 (2000).

  • Surprisingly Comfortable

    With an ergonomically sculpted seat and back.

  • Gravity Tip

    A straightforward, long lasting gravity tip mechanism

  • UV resistance

    Tested for UV resistance as per ISO 4892-2

  • Flammability

    Certified to EN 1021-1 and EN 1021-2 as standard. “Crib 5” compliant mouldings available on request

  • Corrosion-proof

    The hinges and bearing are in corrosion-proof engineered plastics

  • Upgradable

    VIP features such as optional upholstered pads and / or armrests can be added.

Options

Frame finish

Hot galvanised or powder coated

Seat identification

Seat numbers and row letters

Fixing options

Tread fixed or riser fixed

Dimensions

Seat width (centre to centre)

475mm

Chair height

755mm

Depth when open

540mm

Depth when closed

300mm

Downloads

Audience Systems General Brochure
Download
Sigma Datasheet (Metric)
Download