Onyx Ergonomic Posture Chair

£990.00

Free UK mainland delivery — Orders placed before 3pm ship next business day.

Tax included. Shipping calculated at checkout.

Designed for comfort, crafted for performance — delivered with care.

Finish: Black Fabric
Delivery:
Estimated delivery time: 1-4 days
Returns:
Within 14 days of purchase
Sku:
OP000099
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Onyx Ergonomic Posture Chair

The Onyx Ergonomic Posture Chair is built for demanding work environments, blending luxurious comfort with advanced ergonomic functionality. Featuring a pocket sprung seat, adjustable lumbar system, and a full suite of posture controls, it’s designed for professionals who need uncompromising support all day. Available in Black Fabric or Black Leather with next-day delivery.

Key features

  • Deep contoured ergonomic back support.
  • Pocket sprung seat for premium comfort and pressure distribution.
  • Height-adjustable arms to reduce shoulder and wrist strain.
  • Sliding seat depth adjustment for customised leg support.
  • Ratchet back height adjustment with integral lumbar support.
  • Optional adjustable headrest for neck and upper spine relief.
  • Independent seat & back tilt with infinite lock mechanism.
  • Durable chrome frame with fabric or leather finish options.

Warranty & delivery

  • Warranty: 5 years on mechanical parts, 2 years on fabric & foam.
  • Returns: 14-day returns on unused items.
  • Shipping: Free tracked UK mainland delivery.
  • Chairs & accessories: Next working day delivery if ordered before 3pm (Mon–Fri).

Specifications

Max Weight Capacity 135 kg
Product Weight 22 kg (without headrest), 23 kg (with headrest)
Overall Size (mm) W650 × D670 × H1020–1140 (without headrest) / H1180–1430 (with headrest)
Seat (mm) W440 × D460–510 × H495–570
Backrest (mm) W430 × H530–580 (without headrest) / H690–840 (with headrest)
Armrests (mm) W450 × H635–735

Note: Orders placed after 3pm or on weekends/holidays dispatch the next working day.

Vendor ErgoForge
Finish Black Fabric, Black Leather
Sku OP000099
Barcode 5055852204699

Frequently asked questions

Find solutions to your most common queries here. Our detailed answers cover everything from orders to returns and more.

How do I place an order?

To place an order, browse our products, select the desired item, choose your size and color if applicable, and click "add to cart." Once you're ready to purchase, click on the cart icon and proceed to checkout. You'll need to enter your shipping and payment details to complete the order.

How can I track my order status?

After placing your order, you’ll receive a confirmation email with a tracking number once your order has shipped. You can use this number on our "order tracking" page to see the status of your delivery. You can also track your order in the "My Account" section if you have an account with us.

What shipping options are available?

We keep delivery fast and simple. Most orders placed before 3 PM qualify for Next Day Delivery. For all other products, delivery will arrive within 1–4 business days. Every order includes a tracking number, so you can follow your shipment from dispatch to your door.

Can i change or cancel my order?

If you need to change or cancel your order, please contact us within 1 hour of placing the order. Once your order has been processed, we may not be able to make changes, but we’ll do our best to assist you.

What is your return and exchange policy?


We accept returns and exchanges within 14 days of delivery. Items must be in their original condition and packaging to qualify. To initiate a return, please email our support team at support@ergoforge.co.uk

How long does it take to process a return?

Once we receive your returned item, it typically takes 5-7 business days to process your return. You will receive a refund to your original payment method within 10 business days of processing.