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Senator QDOS High Back Executive Chair Design Justus Kolberg

The Senator QDOS high back executive chair designed by Justus Kolberg.

The Senator QDOS High back Executive chair has been created out of the persuit to deliver perfection.


£2,719.50 inc. VAT

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Available as made to order

Made for you in 4-6 weeks

Product Details

QDOS demands attention. Its striking form and an eye for detailing and simplistic clean lines are nothing but deceiving. Beneath the finest leather and a crisp aluminium frame is pure engineering innovation. ; its exoskeleton moulds and contours to your body meaning you get the utmost support whilst sat in a chair that demands prestige.

The tilt action is fully integrated into the engineering solution for the structural aluminium elements of the chair providing a fluid synchronised tilt. Controls to regulate the tension of the mechanism are incorporated into the forward arms of the under-seat giving the user ease to adjust upright lock and adjust the seat height.

The high back QDOS chair incorporates a height adjustable neck rest that has been designed to provide additional support whilst reclining.

Made In The UK with 56% recyclable content.


Aluminium structure incorporating seat frame arms mechanism and
back supports

Dynamic free-floating seat tilt mechanism complete with height
adjustment and locking upright

Aluminium arms with leather inlay to match seat + back

Height adjustable neck rest

60mm Black soft wheel castors with a chrome ring inlay

Aluminium 5 Star base

Sizing/Assembly & Warranty Information

  • Assembly
    Fully Assembled
  • Warranty
    5 Years
  • Seat Height Range
    445mm - 530mm
  • Seat Pad Dimensions
    510mm W x 420mm D
  • Overal Dimensions
    615mm W X 705mm D x 1285mm H
  • Country of Origin
    Made in the UK



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Delivery & Returns Information


Our standard delivery time on all orders FROM STOCK we aim to Deliver within 3-5 working days  (unless otherwise stated) MON- FRI  8AM TO 6PM and is  FREE OF CHARGE to mainland UK for all orders.

* Excludes the Scottish highlands which is chargeable.

If the item is ( Made to Order) you can find the lead time under the Add to Basket Button (these are as accurate as possible)

Products showing PRE ORDER are items we have coming back in to stock and the dates are on the product pages. When you buy a pre order item it is reserved and when it arrives with us we ship it on to you please allow 3 working days after date shown for delivery.

We also ship to NI, ROI and the Channel islands also Mainland Europe.

For more information, please visit our dedicated Delivery Information page.

Easy Returns

All items listed as in stock can be returned or exchanged easily. The item must be in the original packaging and in New Condition and unused! You have 14 days from the date the item was received. We can arrange the return for you.

Please advise of the order No, address and contact details in the email sent to logistics@officechairsuk.co.uk.

For more information, please visit our dedicated Returns, Exchange & Refunds page.

Qdos at a Glance

Qdos Features

1.Aluminium structure and base available in Polished Aluminium or black powder coat

2. Height adjustable neck rest

3. Stitch detailing

4. Arm pad Leather/Fabric to match seat + back

5. Integrated dynamic tilting seat recline with tension adjustment and upright lock


6. Flexible plastic seat and back membrane covered in CMHR moulded foam

7. Five star base with castors or four star base with glides

Meet The Designer

Justus Kolberg has been running his own design studio in Hamburg since 1997 after completing his studies in industrial design at the Muthesius Academy of Fine Arts and Design in Kiel in 1990. Justus has received numerous honors including the IF Hannover Product Design Award, the Red Dot Design Centrum NRW, the IDEA-Gold Industrial Design Excellence Award and the Japanese Good Design Award.