Quantum RB 850 Bare

Products / Stadiums & Arena Seating / Quantum SERIES

Put simply, The Quantum Series seating maximises capacity, delivers superior comfort and ensures long-term durability. Quantum RB 850 (Round Back) has been designed in consultation with leading ergonomists and is arguably the most comfortable seat available today.

The patented beam mount system that Quantum RB 850 seat uses is a revolution. Seats are evenly spaced in every row and can be easily added to, removed or re-spaced as events require. Quantum RB 850’s low maintenance requirements have helped make this seating system extremely popular with venue operators around the world.

• 850mm [33 1/4″] back height as a standard.

• Full enclosed pivot mechanism factory assembled, safe and maintenance free

• Beam-mounted seat for fast installation and repositioning flexibility

• Gas channels and engineering grade polypropylene structure

• Strengthened glass nylon supports and accessories

REQUEST A QUOTE Download brochure

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)


Download the brochure Download specifications
Request a CAD file
Request a quote
*mandatory fields
*mandatory fields

Major Project Installations

68,077 Seats
United States

Mercedes-Benz Stadium

68,077 Seats
67,000 Seats
United States

Dallas Cowboys Stadium

67,000 Seats
70,000 Seats

Estádio Sport Lisboa e Benfica

70,000 Seats
63,960 Seats
United States

CenturyLink Field- Seattle Seahawks Stadium

63,960 Seats