H80 Medium Back
The H80 Medium Back Chair is manufactured to comply with Australian Standard 4438. AFRDI Level 6. It is weight rated to 135kg under normal use.
The H80 is a fully adjustable price point ergonomic chair, It comprises of a 3 lever mechanism allowing individual adjustment of Back Tilt, Seat Tilt and Seat Height.
You can also individually adjust the height of the Backrest via the 8 stage ratchet system.
This cost friendly chairs comes with a 7 year manufacturer’s warranty.
Pricing allows for upholstery in Commercial Grade ECO Wool, please advise fabric and colour choice when ordering.
ergonomicoffice have stock ready to supply and upholstered in Black Commercial Grade ECO Wool .
Primary System: S E A T™
Supporting: S E E™ | A R M S™ | S P A S™

S E A T™ - Pelvic Support
Improve pelvic stability
Maintain spinal alignment
Supported seat comfort
What this means for you when the 4 elements are aligned
| Corrected screen alignment → reduced neck strain | - S E E™ |
| Better pelvic support → less lower back fatigue | - S E A T™ |
| Arm positioning → reduced shoulder load | - A R M S™ |
| Movement support → reduces static load | - S P A S™ |
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The core is R E P O S E™ - the natural low-load comfort
achieved when Vision Support Reach and Movement are aligned.

- Seat Width 500mm
- Seat Depth 460mm
- Seat Height 450-590mm
- Back Width 420mm
- Back Height 410mm
- Weight Rated to 135kg
H80 Medium Back
- Seat Width 490mm
- Seat Depth 450mm
- Seat Height 450-590mm
- Back Width 420mm
- Back Height 410mm
- Weight Rated to 135kg
Who is it for?
For general office users requiring a practical medium-back ergonomic task chair with core adjustability and posture-supportive daily seating. Suitable for average-height users in standard desk-based roles.
Suitable Environments
General office workstations, administration areas, home office use, clerical seating, government and commercial fit-outs requiring reliable task seating.
“Our P O S T U R E Comfort Model™ helps you
achieve sustainable comfort through four integrated
elements - working together to support Natural R E P O S E™…
Ergonomic task chairs are designed to support seated posture, stabilise the pelvis and enable adjustable comfort during desk-based work.
Problem to Solve
Fixed or poorly designed seating leads to posterior pelvic tilt, spinal collapse and fatigue during prolonged sitting.
Framework Application
S E A T™ - Primary
Seating Geometry
The H80 supports seated posture through adjustable seating geometry and a scultped seat pan cushion designed to promote comfort, support pelvic positioning, and assist load distribution during prolonged seated work.
A R M S™
Secondary
Reach Mechanics
Optional armrests support forearm loading during keyboard and mouse tasks and help reduce upper shoulder tension.
S P A S™
Supporting
Posture Variation
Posture variation and movement throughout the day.
The H80 Medium Back Chair is manufactured to comply with Australian Standard 4438. AFRDI Level 6. It is weight rated to 135kg under normal use.
The H80 is a fully adjustable price point ergonomic chair, It comprises of a 3 lever mechanism allowing individual adjustment of Back Tilt, Seat Tilt and Seat Height.
You can also individually adjust the height of the Backrest via the 8 stage ratchet system.
This cost friendly chairs comes with a 7 year manufacturer’s warranty.
Pricing allows for upholstery in Commercial Grade ECO Wool, please advise fabric and colour choice when ordering.
ergonomicoffice have stock ready to supply and upholstered in Black Commercial Grade ECO Wool .
Primary System: S E A T™
Supporting: S E E™ | A R M S™ | S P A S™

S E A T™ - Pelvic Support
Improve pelvic stability
Maintain spinal alignment
Supported seat comfort
What this means for you when the 4 elements are aligned
| Corrected screen alignment → reduced neck strain | - S E E™ |
| Better pelvic support → less lower back fatigue | - S E A T™ |
| Arm positioning → reduced shoulder load | - A R M S™ |
| Movement support → reduces static load | - S P A S™ |
![]()
The core is R E P O S E™ - the natural low-load comfort
achieved when Vision Support Reach and Movement are aligned.

- Seat Width 500mm
- Seat Depth 460mm
- Seat Height 450-590mm
- Back Width 420mm
- Back Height 410mm
- Weight Rated to 135kg



