DuoFlex Square Black

Ergonomic Chair


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Flexible Solutions


DuoFlex Square Black

Ergonomic Chair

Duoflex sQuare

A Closer Look

Adjustable Headrest

  • Headrest accessory adjusts 70mm (2.8”) vertically.
  • Pivoting range:74°

Mesh Backrest

  • Provides dynamic support and allows airflow, providing a comfortable sit in any environment.

Lumbar Support

  • Lumbar height adjusts within a 70mm(2.8”) range to provide additional lower back support.

Seat Slider 

  • Seat depth adjusts within a 80mm (3”) range to accommodate users of varying leg lengths.


  • Soft dual-wheel casters are 45mm O.D. for use on hard floors.


  • 27″ (688mm) Five-arm base



Weight-activated Synchronized Mechanism

  • Auto-Balance tension adjustment utilizes the weight of the user to balance resistance of the back.
  • 4:1 back to seat synchronous movement with any position tilt-lock.
  • Back reclines 20° from upright position.


  • 1D arms allows height adjustment
  • Height adjustment range: 68mm (2.7″)

Frequently asked questions

The installation is fairly simple and takes on average 15 minutes for someone with no experience installing ergonomic chairs. Each chair comes with an installation guide.

Duoflex chairs come with 3-5 years warranty.

Duoflex Square Chairs come with 3 Year Comprehensive warranty

You can learn more about our warranties here

These are both same chairs with different frame colors. Square comes with white frame whereas Square black comes with black frame

Duoflex Square
Duoflex Square


  • EN1335
  • ANSI/BIFMA X5.1-2017
  • TB117-2013
  • ISO 14001 & 9001

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Ergosphere takes care of office furniture so you can build your business. With white glove installation, space planning and flexibility included—and wholesale prices that save you money on premium products—we’re the modern way for growing teams to furnish office space.

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