Quantum RB 850 Bare

Products / Stadiums & Arena Seating / Quantum SERIES

The Quantum RB 850 Bare has been designed in consultation with leading ergonomists and is arguably the most comfortable chair available today for stadium and arena venues.

The patented beam mount system that RB 850 Bare offers is a revolution, similar to other stadium seating alternatives like the Axiom VIP.

The chairs are evenly spaced in every row and can be easily added to, removed or re-spaced as events require.

This Quantum model low maintenance requirements have helped make this seating system extremely popular with venue operators around the world and in the UK region.

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Features & Dimensions


  • 850mm [33 1/4″] back height
  • Full enclosed pivot mechanism
  • Beam mounted seat
  • Engineering grade polypropylene structure
  • Glass nylon supports and accessories


The Quantum Series is the worlds best stadium and arena seating solution due to its structural integrity, competitive price and patented beam mount design. The Quantum Beam allows for venues to maximise seating capacity by up to 6% equalling more revenue when it comes to game day or showtime. The Patented beam design also allows for fast installation of products as well as easily replaced vandalised seats. The Quantum Series features removable seats and backrest (Seat and back pads too - see Quantum VIP), as well as retrofittable arms, cups and various other accessories. This product is designed with the clients personalisation in mind, with a series of personalise items including logo embossing in the backrest, embossed or dome resin logo filagree arms and many other choices.

  • Beam mounted seat for fast installation, repositioned seat centres and replacement
  • Retrofittable arms and cups
  • Snap in seat numbers

STANDARD Dimensions

Seat Center (minimum)
470mm [18 1/2”]
Minimum Envelope (With Arm)
345mm [13 5/8"]
Seat Height
440mm [17 3/8"]
Back Height
850mm [33 1/2"]

CAD Dimensions

850 Bare (Metric)
850 Bare (Imperial)
850 Bare (Metric)
850 Bare (Imperial)

Material & fabric Options

Material and fabric options vary depending on project requirements. Customer can specify their own colours, fabrics and finishes which will be subject to testing and warranty alterations.

Glass Filled Nylon


Optional Accessories

Purse Hook (Quantum)

Quantum Arm

Quantum Arm (Cup holder)

Quantum Arm (Filigree)

Quantum Beam (Riser mount)

Quantum Beam (Tread mount)

Quantum Cup Holder (Rear mount)

Quantum Logo (Debossed)


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Major Project Installations

70,000 Seats

Estádio da Luz (Estádio do Sport Lisboa e Benfica)

70,000 Seats
68,077 Seats
United States

Mercedes-Benz Stadium

68,077 Seats
67,000 Seats
United States

Dallas Cowboys Stadium

67,000 Seats
63,960 Seats
United States

CenturyLink Field

63,960 Seats