Nucleus Office Chair | Ergonomic 8-way Adjustability with SmartSupport™

Office chair infographic showing variable heights and adjustments of the Nucleus office hair

Ergonomic features of the nucleus office chair

Ergonomic and adjustable headrest of nucleus office chair

Adjustable recline settings of the nucleus office chair

Adjustable seat height on the nucleus office chair

3D Armrest Adjustment, up & down. Left & right 25º rotation, Forwards & backwards sliding

Adjustable seat depth on nucleus office chair

Nucleus office chair at desk in office building

Front quarter view of Nucleus Office Chair

Rear Quarter view of Nucleus Office Chair

Nucleus Office Chair | Ergonomic 8-way Adjustability with SmartSupport™

$539.99 USD

(4.9)

Experience enhanced comfort with the Kopplen Nucleus 3-Piece Office Chair, enhanced with SmartSupport Technology. This chair boasts an adjustable headrest, a split waist back support, and spring lumbar support for optimal posture whilst working. The sliding fabric seat and a tilt mechanism with four locking options ensure comfort and effortless mobility.

Adjustable Headrest
Double Waist Spring Lumbar Support
3-Axis Adjustable Armrests

Backrest 5 Adjustable Height Positions
4 Locking Recline Positions
High Weight Capacity (154kg/341lbs)

Read/Download The Installation Guides

Color: Black

Quantity:

5 Year Product Warranty

30-Day Money-Back Guarantee

Our Customer's Choice 2025

Nucleus Office Chair | Ergonomic 8-way Adjustability with SmartSupport™

$539.99 USD

Description

Superb Head & Neck Support

Adjustable headrest ensures optimal head and neck comfort
Provides a comfortable surface for resting the head and neck

Designed to meet the demands of modern professionals, the Kopplen Nucleus 3-Piece Office Chair blends ergonomic engineering with refined adjustability for all-day comfort. Built with SmartSupport Technology, it features an adjustable headrest for neck and head support, along with a split waist backrest and spring lumbar support that promote better posture during long work sessions. The chair’s fabric seat includes a sliding mechanism that adapts to your leg length and seating preference, while the 3-axis adjustable armrests allow precise positioning for your wrists and elbows.

A wire-controlled tilt mechanism offers four reclining lock positions, so you can adjust your working angle without interrupting your flow. The backrest height can be fine-tuned across five gear positions, giving you additional support where it’s needed most. A Class 4 gas lift allows seamless height adjustment, and the track base with durable nylon castors ensures stable, quiet movement across any surface. With a maximum weight capacity of 154kg (341 lbs) and BIFMA-certified castors, the chair is built to withstand heavy, everyday use.

Whether you're working, creating, or gaming, the Kopplen Nucleus Office Chair offers a tailored seating experience that promotes long-term comfort, healthy posture, and mobility, without compromising on design or durability. Ideal for home and office setups alike.

Ergonomic Design & Customizable Seating

Double waist spring lumbar support
3-axis adjustable armrests with ergo-soft touch material
Fabric upholstered seat with slider
Wire control tilting mechanism with 4 lock settings
Backrest height adjustable with 5 lock positions

Quality Controlled Construction

Class 4 gas lift allows for height adjustment
350# track design non-slip base ensures stability
Maximum Weight Capacity: 341 lbs (154.67 kg)

Smooth Mobility

Smooth movement facilitated by nylon castors
BIFMA-tested to withstand 100,000 cycles at 113 kg per castor

Technical Specifications

Dimensions
Overall Width:	68 cm (26.77 in)
Overall Height:	113.5 cm (44.69 in)
Overall Depth:	41 cm (16.14 in)
Weight:	21 kg (46.3 lb)
Height Range:	23.5 cm (9.25 in)

Adjustability
Arms:	Adjustable (3-Axis)
Lumbar:	Fixed
Backrest:	Tiltable & Height Adjustable to 5 Positions
Seat：	Height Adjustable (Class 4 Gas Lift) Swivel (360º)
Base:	Wheels/Casters

Features
Weight Capacity:	154.67 kg (341 lb)
Certifications:	BIFMA
Care:	Vacuum with soft brush

Compatibility

Shipping & Delivery

Kopplen's warehouse is based in Canada, and ships to Canada and the United States only. All orders are traceable with the link showcased at the page's footer, or in the Support drop-down in the website's top navigation.

Processing Time:
Orders placed before 12:00pm (Ontario Time) will be processed on the same business day, or they will be processed for shipping the next business day.

Shipping to Canada:
We ship orders to Canada through Canada Post, with multiple shipping channels available. Some shipping channels' shipping time/rates can be calculated automatically by order weight and destinations, others display definitive shipping time and postages.

Shipping Method	Delivery Time	Postage
Expedited Parcel	1-8 business days	Varies depending on order weight & destination
Xpresspost	1-3 business days	Varies depending on order weight & destination
Priority	1-2 business days	Varies depending on order weight & destination

Shipping Method	Delivery Time	Order Price	Postage
Standard Shipping	1-8 business days	Above $179 (CAD)	Free

We ship orders to the United States through Canada Post, with multiple shipping channels available. Some shipping channels' shipping time/rates can be calculated automatically by order weight and destinations, others display definitive shipping time and postages.

Shipping Method	Delivery Time	Postage
Expedited Parcel USA	4-8 business days	Varies depending on order weight & destination
Xpresspost USA	2-4 business days	Varies depending on order weight & destination
Tracked Packet USA	4-8 business days	Varies depending on order weight & destination

Shipping Method	Delivery Time	Order Price	Postage
Standard Shipping	2-9 business days	Above $129 (USD)	Free

Delivery Time:
To Canada, 1–8 business days (order processing time included). To the United States, 2–9 business days (order processing time included). All items will be traceable for your peace of mind.

We do our best to ensure punctual delivery of your orders, though the rare cases of 1-2 day delayed orders may occur. If your order comes delayed for more than 1 week, a 10% refund of your order price will be refunded. If it is delayed for 3 weeks or longer, your order will be refunded in full of the original order price.

Tax:
To comply with the laws and regulations of Canada and the USA, we implement our duty to collect tax on orders shipped to Canada and the USA. Please note we are not liable or responsible for the tariff of the order shipped to the USA.

Canceling an Order:
We always try our best to cancel your order as soon as we can. Please send your request via email to support@kopplen.com or chat with us online directly.
We can cancel your order only if the request is made within the time that your order has not been processed yet. Please be aware that we do process orders quickly, so we cannot guarantee that we will always be able to cancel your order.

Canceling your order will be free of charge.
If you have any questions about our shipping policy, feel free to email us at support@kopplen.com.

Last updated:
12:50pm Tue 21 Oct 2025

Processing Time:
Orders placed before 12:00pm (Ontario Time) will be processed on the same business day, or they will be processed for shipping the next business day.

Shipping Method	Delivery Time	Postage
Expedited Parcel	1-8 business days	Varies depending on order weight & destination
Xpresspost	1-3 business days	Varies depending on order weight & destination
Priority	1-2 business days	Varies depending on order weight & destination

Shipping Method	Delivery Time	Order Price	Postage
Standard Shipping	1-8 business days	Above $179 (CAD)	Free

Shipping Method	Delivery Time	Postage
Expedited Parcel USA	4-8 business days	Varies depending on order weight & destination
Xpresspost USA	2-4 business days	Varies depending on order weight & destination
Tracked Packet USA	4-8 business days	Varies depending on order weight & destination

Shipping Method	Delivery Time	Order Price	Postage
Standard Shipping	2-9 business days	Above $129 (USD)	Free

Last updated:
12:50pm Tue 21 Oct 2025

Returns/Refunds

Kopplen's 30-day window for free returns & exchanges:

In case you need to return your order within 30 days of purchase upon delivery, please send us your order details (with the problem specified) to: support@kopplen.com. We'll respond within 2 business day to confirm or address your issue.
The shipping fee for orders to be returned & exchanged within 30 days of order delivery will be covered by us.

30-day return & exchange eligibility is subject to the below situations and scenarios only:

Defective order received
Damaged order received
Product quality issue.
Different products received.
Missing parts or components.

Exceptions / non-returnable items:

Packages of customers' that are returned to us by the carrier due to its incomplete or incorrect addresses, or if the recipient refuses to receive the delivery. Unfortunately, we cannot accept returns on sale items or gift cards.

How to request and fulfil a return or exchange:

Customers MUST contact us at support@kopplen.com first for a return/exchange request.
Customer will also be informed via email if the return request is rejected.
If the return is accepted, you are required to return your order back to our warehouse in Canada: 361 Alden Road, Toronto, Ontario, Canada. Zip code: L3R 3L4, Phone NO: +1 905-940-2889 Recipient: Kopplen
Item must be packed in the original packaging with its accessories and components included.
After receiving a replacement piece or set, the previous piece or set (if we did not require you to return it) needs to be destroyed. A video and picture proof will be required to show the damaged piece or set. Failing to do so, you will not be qualified for future replacements. By providing the above-required information, your replacement will be processed within 2 business days.
For only-returned orders, we will issue a full refund of the original order within 2 business day after our confirmation. Please note that the confirmation process may take up to 3 business days to complete.

You can request a full refund or a partial refund for any of the following situations & scenarios:

For minor product defects, shipping damage, and the like, the amount to be refunded is negotiable.
Missing orders (failed to be delivered within 3 weeks or further) will be refunded in full.
If you are approved for a full or partial refund, then the refund will be processed based on the payment method you used to pay for the order. If you pay for your order with PayPal, then the refunded amount will be refunded to your PayPal account, likewise, refunds will be sent back to your original account paid for your order.
All refunds will be issued within 2 business day upon confirmation. Please be aware that it may take 5 to 7 business days for the refund to appear in your account.
If you still don't receive your refund after 7 business days, feel free to contact us.

Please contact support@kopplen.com if you have any questions regarding our return & refund policy.

Kopplen's 30-day window for free returns & exchanges:

In case you need to return your order within 30 days of purchase upon delivery, please send us your order details (with the problem specified) to: support@kopplen.com. We'll respond within 2 business day to confirm or address your issue.
The shipping fee for orders to be returned & exchanged within 30 days of order delivery will be covered by us.

30-day return & exchange eligibility is subject to the below situations and scenarios only:

Defective order received
Damaged order received
Product quality issue.
Different products received.
Missing parts or components.

Exceptions / non-returnable items:

How to request and fulfil a return or exchange:

Customers MUST contact us at support@kopplen.com first for a return/exchange request.
Customer will also be informed via email if the return request is rejected.
If the return is accepted, you are required to return your order back to our warehouse in Canada: 361 Alden Road, Toronto, Ontario, Canada. Zip code: L3R 3L4, Phone NO: +1 905-940-2889 Recipient: Kopplen
Item must be packed in the original packaging with its accessories and components included.
After receiving a replacement piece or set, the previous piece or set (if we did not require you to return it) needs to be destroyed. A video and picture proof will be required to show the damaged piece or set. Failing to do so, you will not be qualified for future replacements. By providing the above-required information, your replacement will be processed within 2 business days.
For only-returned orders, we will issue a full refund of the original order within 2 business day after our confirmation. Please note that the confirmation process may take up to 3 business days to complete.

You can request a full refund or a partial refund for any of the following situations & scenarios:

For minor product defects, shipping damage, and the like, the amount to be refunded is negotiable.
Missing orders (failed to be delivered within 3 weeks or further) will be refunded in full.
If you are approved for a full or partial refund, then the refund will be processed based on the payment method you used to pay for the order. If you pay for your order with PayPal, then the refunded amount will be refunded to your PayPal account, likewise, refunds will be sent back to your original account paid for your order.
All refunds will be issued within 2 business day upon confirmation. Please be aware that it may take 5 to 7 business days for the refund to appear in your account.
If you still don't receive your refund after 7 business days, feel free to contact us.

Please contact support@kopplen.com if you have any questions regarding our return & refund policy.

Superb Head & Neck Support

Adjustable headrest ensures optimal head and neck comfort
Provides a comfortable surface for resting the head and neck

Ergonomic Design & Customizable Seating

Double waist spring lumbar support
3-axis adjustable armrests with ergo-soft touch material
Fabric upholstered seat with slider
Wire control tilting mechanism with 4 lock settings
Backrest height adjustable with 5 lock positions

Quality Controlled Construction

Class 4 gas lift allows for height adjustment
350# track design non-slip base ensures stability
Maximum Weight Capacity: 341 lbs (154.67 kg)

Smooth Mobility

Smooth movement facilitated by nylon castors
BIFMA-tested to withstand 100,000 cycles at 113 kg per castor

Our Office Chairs are designed with your comfort in mind, ensuring that every moment spent at your desk is comfortable and productive. With our ergonomic SmartSupport™ contours and plush cushioning, it provides exceptional support for your back and posture, allowing you to focus on your work without distraction.

Headrest Articulation

The ergonomic headrest provides excellent neck support, reducing strain and promoting proper posture during long work hours.

Lumbar Assist

This chairs adjustable lumbar support ensures your lower back is properly aligned, enhancing comfort and reducing fatigue.

Reclining Backrest

The reclining backrest allows you to lean back comfortably, offering customizable angles for relaxation or focused work.

"The only comfort zone you should stay in."

Accommodating Armrests

The adjustable armrests can be moved up, down, forward, backward, and rotated offering a truly customizable experience. You can easily find the perfect position for your arms, reducing tension in your shoulders and neck.

The durable soft-touch rubber on the armrests ensures your elbows won't fatigue over the course of a work day.

This level of adjustability ensures that you can work efficiently and comfortably, no matter your task.

Sliding Seat

The innovative sliding seat adjusts the depth of the chair to suit your body, providing optimal support for your thighs and your lower back.

This crucial ergonomic feature is what keeps your back supported and your feet comfortably flat on the ground, a feature often overlooked on office chairs, but not ours.

8-way Adjustability

This office chair is designed to provide exceptional support at every joint, ensuring your body remains well-aligned and comfortable throughout the day.

Headrest Tilt & Height
Backrest Height
Backrest Recline Angle (4 positions)
Backrest Recline Tension
Lumbar Support Height
Armrest Height, Angle, Depth
Seat Slide Depth
Seat Height (Gas Lift)

The ergonomic structure promotes healthy posture and reduces strain, allowing you to focus on your work without discomfort.