RH Logic 400 Ergonomic Office Chair from Posturite
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RH Logic 400 (high back) Ergonomic Office Chair
RH Logic 400 (high back) Ergonomic Office Chair RH Logic 400 (high back) Ergonomic Office Chair RH Logic 400 (high back) Ergonomic Office Chair RH Logic 400 (high back) Ergonomic Office Chair Stock fabric colours Relax Wrist Rest (optional)

RH Logic 400 (high back) Ergonomic Office Chair

Price as configured: Ex VAT £869.00 Inc VAT £1,042.80

(13 reviews)

The RH Logic 400 is perfect for both remedial and preventative back care solutions, as well as 24/7 applications.

Based on the unique 'two-point principle' of upright posture and active sitting, the chair improves breathing and circulation, and stimulates the muscles. The one to one tilt action ensures that lower back support remains constant, whatever position the user sits in.

The RH Logic 400 has a high backrest and comes as standard with lumbar pump, seat slide, castors for carpeted floors, base in graphite aluminium and Gaja fabric.

The RH Logic 400 can also be enhanced with optional extras including armrests, extra large seat, neckrest and coccyx cut out seat.

We also offer a free chair set-up by one of our ergonomic consultants with this chair to help adjust the chair to your workstation and needs. To find out more read our Free Chair Set Up Procedure below in the delivery and returns section.

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Price as configured: Ex VAT £869.00 Inc VAT £1,042.80

Additional Information

  • Fully adjustable for seat height, back rake angle, back height, seat slide and lumbar support
  • Unique '2PP' principle ensures optimum support and blood circulation during dynamic sitting
  • Exchangeable seat and pack pads to increase longevity and reduce cost of ownership
  • Memory foam and Coccyx cut out seat pads available, as well as 3D armrests
  • ESD version is available
  • Environmental impact is traceable through EPD (Environmental Product Declaration)
Fabric colours
  • Available in black, navy blue and royal blue
  • 8S Class A Armrests - Black - Silver Frame. Adjustable in height and width. Rotating. Armrest height above seat 215-295 mm.
  • 8S Class A Armrests - Black - Black Frame. Adjustable in height and width. Rotating. Armrest height above seat 215-295 mm.
  • 8E Class A Armrests - Black - Silver Frame. Adjustable in height, depth and width. Armrest height above seat 215-295 mm.
  • Silver graphite 5X aluminium base (as standard)
  • Black 5X aluminium base
  • Castors for carpeted floors (as standard)
  • Castors for hard floors
Gas Stem
  • Standard Height Gas Stem (410-530 mm)
  • 4Q Standard Height Black Gas Stem - Same gas stem as standard, but all in black rather than silver
  • High gas stem B (480-610 mm) - suitable for taller users
  • Upgrade to Black High Gas Stem B (480-610 mm) - Same gas stem as the high gas stem, but all in black rather than silver
XL Seat
  • XL Seat - 485(w) x 515(d) mm - suitable for larger users
Coccyx cut-out seat
  • Coccyx relief recess cut out for injured coccyx
  • Height and depth adjustable
Memory foam seat
  • Memory foam seat pad for extra comfort
8R3D Relax armrest (single arm)
  • Adjustable height, depth and sideways position.
Seat width:
465 mm
Seat depth:
475 mm
Seat height:
410-530 mm
Seat sliding range:
60 mm
Backrest width:
445 mm
Backrest height:
620 mm
Maximum user weight:
150kg (23.5 stone)
10 year for 9 hour a day usage
5 year when used as a 24/7 chair
Contact us about your seating project

Need more than one chair? However big or small your project is, we have a dedicated service to support you. Not only will you get expert advice, trials, delivery and set-up, but you’ll also benefit from great discounts on bulk orders.

To request a no-obligation quote, or to discuss your requirements further, please fill out our contact form and we will get back to you as soon as possible.

Warehouse stock

This is an item we keep stock in our warehouse.

Delivery time

If the item is currently in stock we will process your order in 24 hours. Please allow up to 3-4 working days for delivery, though times will often be faster than this.

Chair returns

We offer a 30 day return policy on this item, providing the item is not damaged and standard options have been ordered. You must first phone the office to obtain a Returns Note and Number. The goods must be returned during business hours, carriage paid, in perfect condition in their original packaging, with the Returns Note enclosed.

For more detailed information on our returns policy and any right you have to return goods under the Consumer Contracts Regulations 2013, please visit our 'Returns and refunds' page, accessed from the footer.

Please note, non-standard options such as a Coccyx Cut-out or memory foam seat are non-returnable. For more information, contact us on +44 (0) 345 345 0010.

Free chair setup service

Upon receiving your chair, please email appointments@posturite.co.uk or call +44 (0) 345 345 0010 to arrange your complimentary chair setup.

92% of customers liked this product (13 Reviews)

DateScoreCustomer CommentPosturite Comment

Comfortable chair, firm seat. One control on the seat is supposed to firm up the tilting mechanism, however I can detect no difference in the tilt mechanism at any setting, I have had to get used to the default tilt performance. The guy that came to custom fit my chair told me this is because I had the seat squab at maximum extension, (which is where it is most comfortable). At this price you expect things to work as intended however you have the seat adjusted!


Good quality chair built as required


I already have this chair at work so I know how good it is for my back that I broke in 2 places and dislocated.




Very comfy chair that suits my needs.


Excellent build and service. They came out as agreed and on time to set up the chair for the individual with no problems.




Exactly wat my back needed! Superbly adjustable and can be tailored to suit the individaul, I like the fact that the seat height can be elevated "above standard" mass market chairs.


The employees who I've had to purchase these chairs for are already showing lessening signs of back issues. Don't know why we never had these chairs from the off.


Exactly what we wanted and very easy to adjust and control for the end user.

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