RH Extend 100 Ergonomic Office Chair - Medium Back - Medium Seat - Quick Ship in Black or Grey fabric

If you find this product for sale online at a lower price at a UK mainland competitor and sold with the same specifications, you can request a price match by calling 0800 731 7301 and we'll do our best to match it.

Flokk Quick Ship chairs are delivered within 7-10 working days.

RH Extend 100 has medium back and medium seat and comes with a silver lacquered aluminium base. It can also be enhanced with a range of options and accessories. Adjustment controls are easy to see, reach and understand, even while seated. RH Extend 100 has a mechanism that follows your slightest movement – regardless of your working position. RH Extend is a practical alternative when several people share the same chair.

Fabric finishes shown on images may differ from actual fabric specification

Product Features.

Adjust chair height
Adjust seat depth
Adjust backrest height
Unlock the dynamic tilt
Adjust tilt resistance
Adjust height of armrests
Adjust neckrest

  • Backrest

    W44cm x H51cm

  • Seat

    W46cm x D46.5-54.5cm (sliding seat)

  • Seat height


  • Max. user weight

    150 kg (23.5 stone)

  • Mechanism

    Lockable asynchronous mechanism

  • Plastic Trim


  • Base

    Silver lacquered aluminium

  • Castors

    Hard floor (Ø65mm), Soft floor (Ø65mm)

  • Armrests (optional)


  • Warranty

    10 years

  • Certification

    BS EN 1335

We charge a one-off fee of £15+VAT for all orders regardless of quantity, except sit/stand desks which have a one-off £70+VAT fee per order due to the size and weight. Our standard delivery covers the UK mainland (including Isle of Wight) only.

We aim to deliver your order within 5-7 days. Once you have placed your order we will contact you within 24 hours to confirm your delivery date. If your items are needed in a real hurry please get in touch and we may be able to speed things up for you.

Chairs are normally delivered within 4-5 weeks. Due to them being tailor-made, in a colour of your choice, chairs are non-refundable (unless faulty).

To ensure your desk arrives with you in perfect condition and doesn’t get damaged in transit we deliver them on a wooden pallet which you get to keep for free! Woop! You can turn it into all kinds of handy things for the home or office.  If this puts you off please contact our team as we may be able to arrange collection.


RH Extend 100 Ergonomic Office Chair – Quick Ship – Black/Grey



£818.64 (Ex VAT



Neckrest Options (2)

Choose your option

Coat Hanger Option (1)

Choose your option

Armrest Option (1)

Choose your option

Castors Options (2)

Choose your option