Delta 120kg Manual Back Ergonomic Office Chair

SKU: Delta-120-Manual

The Delta Ergonomic Office Chair offers manual back adjustment, contoured seat, and 120kg capacity for everyday comfort.

$315.00

Backrest Size *

High Back is the most popular

Delta Mid Back 410W x 410H
Delta Mid Back 410W x 410H $0.00
Delta High Back 440W x 500H
Delta High Back 440W x 500H $20.00

Seat Size *

Standard Seat is the most popular

CS Standard Seat 490W x 465D
CS Standard Seat 490W x 465D $0.00
CS Large Seat 520W x 490D
CS Large Seat 520W x 490D $30.00
CS Extra Large Seat 540W x 500D
CS Extra Large Seat 540W x 500D $60.00

Gas Lift Options *

140mm is for standard seating - most popular

Hag 265mm (high) gas lift - Silver, main product photo
CS Low Gas Lift (100mm) $12.00
Hag 265mm (high) gas lift - Silver, main product photo
CS 140mm Height Gas Lift $0.00
Hag 265mm (high) gas lift - Silver, main product photo
CS High Gas Lift (200mm) $39.00

Castor Options *

Standard 50mm Hard Castors - most popular

50mm Castor Hard Set-CS
50mm Castor Hard Set-CS $0.00
60mm Castor Soft Wheel Set-CS
60mm Castor Soft Wheel Set-CS $39.00
Chair Glide Set - CS
Chair Glide Set - CS $25.00
50mm Manual Brake Lock Castor Set - CS
50mm Manual Brake Lock Castor Set - CS $35.00
50mm Sit Lock Castor Set - CS
50mm Sit Lock Castor Set - CS $35.00
50mm Stand Lock Castor Set - CS
50mm Stand Lock Castor Set - CS $35.00

Other Options

CS Adjustable Arms - Black
CS Adjustable Arms - Black $100.00
CS Seat Slide
CS Seat Slide $68.00
CS Lumbar Pump
CS Lumbar Pump $95.00
CS Visco Overlay
CS Visco Overlay $74.00
CS Alloy Base
CS Alloy Base $95.00
Product price: $315.00
Total options:
Order total:

No color options available.

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Description

The Delta Ergonomic Office Chair is designed to deliver reliable comfort and support for everyday office use. Built with a manual back adjustment system, it allows users to tailor lumbar positioning for healthier posture throughout the day.

With a contoured seat cushion, height‑adjustable gas lift, and durable five‑star base, the Delta chair balances ergonomic function with affordability. Its breathable fabric upholstery and robust 120kg weight capacity make it suitable for a wide range of users in professional or home office settings.

Compact, practical, and supportive, the Delta Ergonomic Office Chair is a smart choice for those seeking dependable seating without compromising on comfort.

Features:

  • Ergonomic design with manual back adjustment
  • Contoured seat cushion for pressure relief
  • Height‑adjustable gas lift for tailored seating
  • Breathable fabric upholstery for comfort
  • Five‑star base with durable castors for mobility
  • Robust 120kg weight capacity
  • Suitable for offices, study spaces, and home work environments

Specifications:

  • Backrest: Manual adjustable lumbar support
  • Seat Cushion: Contoured foam with fabric upholstery
  • Height Adjustment: Gas lift mechanism
  • Base: Five‑star nylon/aluminium with castors
  • Weight Capacity: 120kg
  • Style: Ergonomic office chair
  • Applications: Office, home workspace, study

Warranty:

The Delta Ergonomic Office Chair comes with a 10‑year manufacturer’s warranty, covering defects in materials and workmanship under normal use. This does not cover wear and tear, misuse, or accidental damage.

Fabrics:

As standard, we offer the Wortley Conrad and Warwick Hawthorn range of fabrics. Both collections feature an extensive colour palette, allowing you to tailor your chair to suit any workspace or aesthetic preference.

  • Wortley Conrad: A durable, textured upholstery fabric with a refined weave and soft hand feel. Conrad is designed for commercial environments, offering excellent abrasion resistance and a contemporary colour range that balances neutrals with bold accents.
  • Warwick Hawthorn: A versatile fabric known for its smooth finish and modern appeal. Hawthorn combines comfort with performance, making it ideal for task seating. Its broad spectrum of colours—from muted tones to vibrant hues—ensures flexibility in design.

Custom Fabrics: 

In addition to our standard Wortley Conrad and Warwick Hawthorn fabrics, we offer access to the full upholstery ranges from Wortley, Warwick, and Sustainable Living Fabrics. These collections include premium textures, expanded colour palettes, and performance-rated textiles suitable for commercial seating.
If you're looking to customise your chair with a specific fabric, we invite you to explore the broader selections below. Once you've chosen a fabric, simply contact us to confirm availability and lead time.🧵 Explore Full Fabric Ranges

     Explore Full Fabric Ranges 

  • Wortley Upholstery Collections
    Includes Conrad, plus other commercial-grade fabrics like Kai, Crypton, and Mario Sirtori. Offers woven, vinyl, and designer options for high-performance seating.
    👉 Browse Wortley Upholstery Ranges
  • Warwick Fabrics Australia
    One of Australia’s leading textile houses, Warwick offers hundreds of upholstery fabrics across styles and applications. Popular ranges include Gravity, Lustrell, Eastwood, and Chateau.
    👉 Explore Warwick Upholstery Fabrics
  • Sustainable Living Fabrics
    Australian-made, eco-certified fabrics designed for durability, low VOC emissions, and recycled content. Ideal for government, education, and healthcare environments.
    👉 View Sustainable Living Collections

Shopping with Confidence!

We appreciate that you want to shop with confidence online. And so Bad Backs wishes to confirm the importance we place on your privacy, security, our returns policy and customer service support.

Should you choose to shop in-store, visit one of our stores in Melbourne, Sydney or Perth.    Click here for our store locations

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Product FAQs

The Delta Ergonomic Office Chair Manual Back is designed to provide reliable comfort and support for everyday office use. It features a manual back adjustment system that allows users to tailor lumbar positioning, promoting healthier posture throughout the day.
Explore ergonomic solutions designed to alleviate back pain and support spinal health. Our range includes chairs, desks, and accessories tailored for comfort and posture improvement. Perfect for home and office settings, these products aim to enhance your daily comfort and productivity. Discover the benefits of ergonomic furniture and invest in your well-being today.
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