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Shappa S5 ergonomic office chair with adjustable lumbar support and breathable mesh backrest
S5 ergonomic chair in home office workspace setting
S5 ergonomic chair side view showing breathable mesh backrest and headrest with 6-point adjustment system
S5 ergonomic chair back view showing breathable mesh backrest and headrest with 6-point adjustment system
Shappa S5 ergonomic office chair with footrest extended — grey mesh back, headrest and adjustable armrests
Shappa S5 ergonomic chair front and side view with dimensions - adjustable height 123-131cm, seat height adjustable 46-55cm, width 70cm, backrest 68cm
Shappa MS1 electric standing desk frame with white tabletop, laptop and ergonomic mesh office chair in a home office setting
S5 ergonomic chair in home office workspace setting
S5 ergonomic chair in home office workspace setting
S5 ergonomic chair in home office workspace setting
Shappa S5 ergonomic office chair with adjustable lumbar support and breathable mesh backrest
S5 ergonomic chair in home office workspace setting
S5 ergonomic chair side view showing breathable mesh backrest and headrest with 6-point adjustment system
S5 ergonomic chair back view showing breathable mesh backrest and headrest with 6-point adjustment system
Shappa S5 ergonomic office chair with footrest extended — grey mesh back, headrest and adjustable armrests
Shappa S5 ergonomic chair front and side view with dimensions - adjustable height 123-131cm, seat height adjustable 46-55cm, width 70cm, backrest 68cm
Shappa MS1 electric standing desk frame with white tabletop, laptop and ergonomic mesh office chair in a home office setting
S5 ergonomic chair in home office workspace setting
S5 ergonomic chair in home office workspace setting
S5 ergonomic chair in home office workspace setting

2025 Upgrade

S5 Ergonomic Chair

Transform your workspace with the Shappa S5 Ergonomic Office Chair, meticulously crafted for Australian professionals who spend extended hours at their desk. Featuring six independent points of ergonomic adjustment, including dynamic lumbar support, seat height control, tilt tension adjustment, and fully adjustable armrests, the S5 enables you to customise your sitting position to perfectly match your body and workstyle preferences.


The advanced breathable mesh backrest promotes superior air circulation to keep you cool and comfortable throughout the day, whilst the premium high-density foam seat cushion delivers exceptional comfort and optimal posture alignment. Engineered to safely support users up to 150kg, this heavy duty swivel chair seamlessly combines robust durability with practical functionality, making it ideal for everyday professional use in both home and office environments.


Whether you're working from home, leading a team, or enjoying extended gaming sessions at your desk, the Shappa S5 delivers the perfect balance of contemporary style, structural integrity, and ergonomic support. With its clean, modern profile and straightforward assembly process, it's designed to integrate seamlessly into any professional Australian workplace environment. Shop all ergonomic chairs or explore our office chairs collection.
$899.95
$899.95 $969.95
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Features and benefits

S5 Ergonomic Chair

Designed for standard and larger body types

S5 is specifically crafted to meet a wider range of bodies. With many customisable adjustments, you can experience a tailored and exceptional level of comfort that sustains your posture throughout the day.

S5 Ergonomic Chair

Generously wide and cushioned

The ergonomically contoured seat of S5 Ergonomic Chair is designed to provide support and evenly distribute pressure, alleviating strain and relieving the pressure from your leg

S5 Ergonomic Chair

Ergonomic design

Designed with a focus on comfortable and supportive seating that promotes good posture. It keeps the body in a natural position, reducing the risk of muscle issues and enhancing overall well-being.

S5 Ergonomic Chair

Lets your back breathe

The chair's mesh back provides exceptional airflow, which enhances ventilation and keeps you cool and comfortable even during long hours of work.

S5 Ergonomic Chair

Quality assurance

The product surpasses demanding BIFMA standards for durability and safety. Created from high-quality materials, this chair is designed to withstand prolonged use and daily wear. Its quality assures an extended 10-year warranty.

S5 Ergonomic Chair

Shappa S5 Ergonomic Office Chair - Adjustable Lumbar Support for Home and Office

Transform your workspace with the Shappa S5 Ergonomic Office Chair, meticulously crafted for Australian professionals who spend extended hours at their desk. Featuring six independent points of ergonomic adjustment, including dynamic lumbar support, seat height control, tilt tension adjustment, and fully adjustable armrests, the S5 enables you to customise your sitting position to perfectly match your body and workstyle preferences.

The advanced breathable mesh backrest promotes superior air circulation to keep you cool and comfortable throughout the day, whilst the premium high-density foam seat cushion delivers exceptional comfort and optimal posture alignment. Engineered to safely support users up to 150kg, this heavy duty swivel chair seamlessly combines robust durability with practical functionality, making it ideal for everyday professional use in both home and office environments.

Key Features of the S5 Ergonomic Office Chair

6-Point Ergonomic Adjustment System

The S5 offers comprehensive adjustability with six independent adjustment points:

  • Dynamic Lumbar Support - Adjustable lumbar support that contours to your lower back's natural curve, providing reliable support in various sitting positions
  • Seat Height Control - Gas lift mechanism adjusts seat height to align with your desk, suitable for users from 150cm to 200cm in height
  • Tilt Tension Adjustment - Customisable tilt resistance to match your body weight and preference, allowing smooth recline movement
  • Fully Adjustable Armrests - Height, width, depth, and angle adjustable to support your arms in the perfect position, reducing shoulder and neck strain
  • Breathable Mesh Headrest - Height and angle adjustable mesh headrest to cradle your head and neck, helping reduce neck and upper-back strain during extended work sessions
  • Backrest Recline - Wide range of recline angles from upright work position to relaxed reading position

Breathable Mesh Backrest and Headrest

The advanced breathable mesh backrest and breathable mesh headrest promote superior air circulation to keep you cool and comfortable throughout the day. This prevents heat and moisture build-up, ensuring a fresh sitting experience, especially in warmer Australian climates. The mesh design provides exceptional airflow, enhancing ventilation and keeping you comfortable even during long hours of work.

Premium High-Density Seat Cushion

The premium high-density foam seat cushion delivers exceptional comfort and optimal posture alignment. The ergonomically contoured seat provides balanced support and even pressure distribution across your thighs and hips, minimising fatigue and maintaining comfort over extended periods. The generously spacious seat features thick, high-density padding that actively supports healthy posture and effectively prevents fatigue, even during prolonged work.

Heavy-Duty 150kg Capacity & Smooth Mobility

Featuring a robust, durable five-star base, this heavy duty swivel chair is engineered to safely support users up to 150kg. The premium swivel castors provide effortless and silent movement across all common floor types, including carpet, timber, and tiles. This makes the S5 ideal for both home and office environments, ensuring smooth mobility without damaging your flooring.

Perfect for Home and Office Use

Whether you're working from home, leading a team, or enjoying extended gaming sessions at your desk, the Shappa S5 delivers the perfect balance of contemporary style, structural integrity, and ergonomic support. With its clean, modern profile and straightforward assembly process, it's designed to integrate seamlessly into any professional Australian workplace environment - from home offices in Melbourne to corporate workspaces in Sydney and creative studios in Brisbane.

Warranty and Support

Every Shappa S5 Ergonomic Chair comes with a comprehensive 10-year warranty covering the frame, base, casters, gas lift mechanism, and all adjustment controls. This extended warranty reflects our confidence in the S5's quality and durability, providing you with complete peace of mind for years of comfortable use.

Easy Assembly

Enjoy quick and straightforward setup thanks to the included easy DIY assembly instructions and tools. Assembly takes as little as 15 minutes, with all components featuring threaded screw inserts or pre-drilled holes. All necessary tools are included - no additional tools required.

Transform your workspace comfort with the Shappa S5 Ergonomic Chair. Experience the difference that proper ergonomic support makes to your productivity, comfort, and well-being. Shop all ergonomic chairs or explore our office chairs collection.

Specifications

Explore the detailed specifications and technical features of our ergonomic office chairs. Learn about adjustment capabilities, load capacity, materials, and more to find the perfect fit for your comfort and workspace needs.

S5

7

7 points of adjustment

You're original. S5 adapts to you.

  • Load Capacity: 150KG
  • 90°-150° angle adjustment
  • 4-level Seat back adjustment
  • 3D Headrest fits head and neck
  • 4D adjustable armrest
  • Seat depth adjustment
  • Seat height adjustment
  • Footrest adjustment
  • 10 years insurance
Shappa S5 ergonomic office chair spine alignment diagram showing dynamic lumbar support for upright sitting posture

Comfort tailored to you

Fine-tune six key adjustments - lumbar support, seat height, tilt tension and angle, plus adjustable armrests - so you feel at ease all day.

Shappa S5 ergonomic office chair 4D armrests, adjustable in height, width, depth and angle

4-Way Armrest

Adjustable up and down, front and back, with a 35° rotation, adapting to various working postures. The soft, medium-thickness PU armrest surface provides comfort.

Shappa S5 ergonomic office chair breathable mesh headrest, adjustable height and angle for neck support

Adaptive headrest

Raise or rotate the headrest to suit your posture, reducing neck and shoulder strain while you work or relax.

Seat back and footrest adjustment

Experience personalized comfort with S5's synchronized seat back adjustment and adjustable footrest support. The waist and back linkage system adapts to your natural movements, while the footrest provides optimal leg support for all-day comfort.

All-day comfort for your back

Lumbar support is a crucial feature that helps maintain good posture and reduces strain on your lower back by easing pressure on the lumbar area.

From 90° to 150°

Go from work to rest mode in a second.

4 positions

Lock the backrest in favorite positions.

150 kg

Maximum loading weight capacity.

Meets durability standards

S5 has undergone hundreds of thousands of stress tests and meets or exceeds BIFMA standards for safety, durability, and sustainability.

Drop load proof test

Drop load proof test

Drop load proof test 150kg weight (300lbs) dropped onto the center of the seat.
Seating durability test

Seating durability test

100,000 cycles. A 57kg (125lbs) weight falls onto the seat.
Backrest load test

Backrest load test

A force of 1,001N is applied to the backrest for 1 minute.
Tilt mechanism test

Tilt mechanism test

300,000 cycles. Chair is tilted with 119kg (240lbs) weight on the center of the seat.
Forward overturning test

Forward overturning test

A vertical force of 600N is applied at points most likely to result in overturning.
Armrest durability test

Armrest durability test

60,000 cycles. A force of 400N is applied to each arm.
Rearward stability test

Rearward stability test

13 heavy discs are loaded against the backrest.
Swivel test

Swivel test

120,000 cycles. A 122kg (270lbs) weight is applied on the seat at both its maximum and lowest height.
Drop load proof test

Drop load proof test

Drop load proof test 150kg weight (300lbs) dropped onto the center of the seat.
Seating durability test

Seating durability test

100,000 cycles. A 57kg (125lbs) weight falls onto the seat.
Backrest load test

Backrest load test

A force of 1,001N is applied to the backrest for 1 minute.
Tilt mechanism test

Tilt mechanism test

300,000 cycles. Chair is tilted with 119kg (240lbs) weight on the center of the seat.
Forward overturning test

Forward overturning test

A vertical force of 600N is applied at points most likely to result in overturning.
Armrest durability test

Armrest durability test

60,000 cycles. A force of 400N is applied to each arm.
Rearward stability test

Rearward stability test

13 heavy discs are loaded against the backrest.
Swivel test

Swivel test

120,000 cycles. A 122kg (270lbs) weight is applied on the seat at both its maximum and lowest height.
Shappa

Compare Ergonomic Chairs

Compare our range of ergonomic chairs to find the perfect fit for your workspace. Review detailed specifications, adjustment capabilities, comfort features, load capacity, warranty coverage, and pricing side by side. Make an informed decision by evaluating all the key factors that matter most for your comfort and productivity.

Select a different chair to compare
features and specifications.

Performance

Load Capacity
R350 Polished aluminum base R350 Polished aluminum base Load Capacity: 150 kg
Nylon base Nylon base Load Capacity: 135 kg

Seat Cushion
High-density foam seat cushion High-density foam seat cushion Ergonomic high-density foam seat cushion for optimal support and comfort
Mesh seat cushion Mesh seat cushion Breathable mesh seat cushion for enhanced airflow and comfort

Suitable for height
150-200cm 150-200cm Best for people from 150 cm to 200 cm in height
Suitable for height
150-190cm 150-190cm Best for people from 150 cm to 190 cm in height
Suitable for height

Headrest adjustment
3D Headrest Adjustment 3D Headrest Adjustment Height, depth and angle adjust to reduce neck load during work or rest.
Speed
3D Headrest Adjustment 3D Headrest Adjustment Height, depth and angle adjust to reduce neck load during work or rest.
Speed

Armrest
4D Armrest 4D Armrest 4-way armrest customisation
5D Armrest 5D Armrest

Electronics & Features

Lumbar support
Waist and back linkage system Waist and back linkage system Adaptive lumbar support powered by a waist and back linkage system; synchronized movement that continuously adjusts to your posture for sustained, all-day comfort
Independent lumbar support adjustment system Independent lumbar support adjustment system

Tilt Angle
90-150 90-150 Adjustable backrest tilt from upright to relaxed position
90-135 90-135

Seat adjustment
Seat back linkage adjustment Seat back linkage adjustment Synchronized seat and backrest movement for natural posture support
90 degree foldable seat back 90 degree foldable seat back

Footrest adjustment
Adjustable footrest Adjustable footrest Height-adjustable footrest for optimal leg support and comfort
Adjustable footrest Adjustable footrest Height-adjustable footrest for optimal leg support and comfort

Service

Warranty
10-year 10-year 10 years warranty coverage
10-year 10-year 10 years warranty coverage

Frequently asked questions (FAQ)

1. Who is the S5 Ergonomic Chair best suited for?

The S5 is designed for professionals, remote workers, students and gamers who spend extended periods at a desk and prefer a supportive cushioned seat rather than a full-mesh seat. Its adjustable seat depth, headrest, lumbar system, 4D armrests and wide recline range make it suitable for home offices, professional workspaces and multi-purpose desk setups. The S5 is particularly well suited to users who want strong lower-back support, a substantial sitting feel and the option to recline with an extendable footrest.
The S5 is designed to accommodate users approximately 150–200 cm tall and supports a maximum user weight of 150 kg. Chair fit depends on more than height and weight. Users should also consider the seat width, seat depth, headrest range and armrest spacing. When seated, your feet should rest comfortably on the floor, your knees should remain close to a 90-degree angle, and there should be a small gap between the front edge of the seat and the back of your knees.
Yes. The S5 is designed for extended desk use and includes adjustable lumbar support, seat height, seat depth, headrest positioning, armrests and recline settings. The cushioned seat provides a softer sitting surface than a full-mesh seat, while the breathable mesh backrest helps improve airflow during longer work sessions. For better comfort, adjust the chair to your body and change posture regularly rather than remaining in one position throughout the day.
The S5 uses a cushioned foam seat combined with a breathable mesh backrest. The foam seat provides a softer and more padded feel beneath the hips and thighs, while the mesh backrest allows airflow around the upper body. This combination is suitable for users who prefer the cushioning of a traditional office chair seat but still want the ventilation and flexibility of a mesh backrest.
The S5 uses a coordinated waist-and-back support system designed to maintain contact with the lower back as your sitting position changes. Its four-level back support system allows you to select different levels of lumbar pressure. The firmer settings provide stronger lower-back support, while the gentler settings are better suited to relaxed sitting and reclining. The lumbar support should feel supportive without creating excessive pressure. Adjust it gradually until it follows the natural curve of your lower back.
The S5 includes adjustable seat height, seat depth, headrest position, lumbar support, recline angle, tilt tension, 4D armrests and an extendable footrest. The backrest reclines from approximately 90° to 150° and can be locked in four positions. The 4D armrests can be adjusted for height, depth, width and angle to support different desk and sitting positions. These adjustments allow the chair to be configured for upright typing, reading, meetings, gaming and relaxed reclining.
The S5 is better suited to users who prefer a cushioned foam seat, coordinated waist-and-back support and a wider recline range of up to 150°. The Spencer offers more advanced upper-body adjustment, including 6D armrests and an independent lumbar support system. It reclines to approximately 140° and is positioned as the more highly adjustable option. Choose the S5 if you prefer a softer seat, wider recline and strong integrated lower-back support. Choose the Spencer if advanced armrest and lumbar customisation are your main priorities.
Yes. The S5 is delivered flat-packed and requires assembly. The necessary hardware, tools and assembly instructions are included. The main components use pre-drilled holes or threaded screw inserts, so no power drill is normally required. Assembly can take approximately 15 minutes, although two people may find it easier to position the backrest and turn the completed chair upright. Check that all screws are secure before using the chair.
The S5 is covered by Shappa’s 10-year limited warranty for ergonomic chairs. The warranty applies to eligible defects in materials or workmanship and is available to the original purchaser. The warranty does not cover normal wear and tear, misuse, improper installation, accidental damage, unauthorised alterations or damage caused by failing to follow the product instructions. Keep your order confirmation or proof of purchase in case you need to submit a warranty claim.
Eligible change-of-mind return requests must be made within 30 days of receiving the chair. The S5 must be unused, in like-new condition and returned in its original factory packaging. Customers are responsible for change-of-mind return shipping costs, and the return must be authorised before the chair is sent back. Faulty, damaged or incorrectly described products are handled separately in accordance with Shappa’s return policy and the Australian Consumer Law.