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RH Logic 400 Ergonomic Office Chair

£951.15 £1119.00ex. VAT

The RH Logic 400 ergonomic chair is an ideal high back posture chair for both rehabilitative and repetitive musculoskeletal injuries, as well as being well suited to 24/7 environments. The RH 400 has a high back that narrows towards the top for maximum arm movement, as well as including various adjustment features for individual comfort.

RH Armrests
Armrest Pads
RH Relax Arms
Neck Rest
XL Seat
Coccyx Cut Out
Memory Foam Seat
Coat Hanger
Extended Gas Stem
Optional Castors
Upgrade for 24/7 use
Fabric Colour
Price as configured

RH Logic 400 Ergonomic Office Chair Product Details

The RH Logic 400 ergonomic office chair includes an inflatable lumbar support as standard as well as a seat slide, independent back rest angle adjustment, seat height and arguably the best rocking action on the market.

The rocking action mechanism on the RH 400 has been designed to ensure that when leaning backward or forward, your feet always remain in contact with the floor, minimising the pressure on the underside of your thighs and aiding with blood circulation. Secondly, the back rest height remains constant, regardless of the seat angle to ensure constant support. 

The RH Logic 400 can be enhanced mith the multiple features below to ensure maximum comfort and support. We hold the RH 400 chairs in high stock levels to ensure fast, nationwide delivery. They are also available to try in our showroom in Leyland, Lancashire and come with a 10 year guarantee.

RH Logic 400 Ergonomic Office Chair Features

  • Balanced knee tilt float action
  • The counterbalanced action follows and supports your body (tension adjustable) and locks in any position
  • Inflatable lumbar pump
  • Independent back tilt
  • Back height adjustment
  • Sliding seat
  • Softer feel foam


  • Warranty: 10 Years or 5 years 24/7 use
  • Weight Limit (Stone): 23.5
  • Seat Height (cm): 41 - 53
  • Seat Width (cm): 46.5 (Std) | 48.5 (XL)
  • Seat Depth (cm): 40 - 50 (Std) | 44 - 54cm (XL)
  • Back Height (cm): 65 - 72.5
  • Back Width (cm): 44
  • Centre of lumbar curve (cm): 17 - 29.5
  • Mechanism: Floating Multi Tilt

Pose Evaluation Form

If you require one of our ergonomic chairs and are unsure which model and features you require then please complete our POSE Form below.

Pose Form

Delivery Information

For all delivery only stock orders, we aim to deliver the goods within 4 working days. Not all products shown on the website are held in stock or can be sent via courier ie desktops and therefore the delivery time of these goods may vary. We will keep you updated regularly with estimated delivery times on these goods.


Delivery charges below are for UK mainland only orders. For all other destinations please contact us for a quote or proceed to the checkout and enter your delivery information.

Accessories ordered on their own are charged at £5 + VAT per delivery - this offer is only available for internet orders. All orders including a boxed chair or desk (No Setup) are charged at £15 + VAT per order


The personal delivery and setup charges below are for deliveries to Mainland UK only.

Chair:  £50
Desk:  £50

If you order a Chair and a Desk together then only one £50 charge will apply.


We offer a two week trial period on the majority of products (exclusions do apply ie Software, Headsets etc) which starts from the day you receive your item(s). If you wish to return an item then simply email us at office@backcs.co.uk so we can provide a returns note and number. Upon receipt of the returned items we will issue a full refund excluding any outward delivery charges. Please contact us if you are unsure whether your item would be available on this two weeks return period.

Goods and packaging must be in their original condition and returned within business hours, carriage paid with the returns note enclosed.

If you are returning an item due to a fault or damage then please contact us and we will arrange for the collection of the item(s).

For further information on our returns policy please visit our Delivery & Returns page.

Product Video