Kirn Black Home Office Chair Front
Kirn Office Chair with Lumbar Chair
Kirn Home Office Chair with Headrest
Kirn Office Chair 5 Year Warranty
Kirn Office Chair Control Details
Kirn Chair Home Office Lumbar Support Detail
Kirn Office Chairs Room Shot
Kirn Home Office Chair

Kirn Home Office Chair

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  • Delivery VanFree UK Mainland Delivery in 3-6 Working Days
Product Description

With a 125-year manufacturing history, designing an innovative chair for the home office remains a challenging endeavour. The primary design objective for the Kirn task chair was to strike a delicate balance between comfort, aesthetics, ergonomic adjustability and compliance with stringent international standards. Kirn, an innovative office chair from Orangebox, delivers on this design philosophy and embraces simplicity for three compelling reasons:

  1. User friendly with advanced ergonomics: Kirn prioritises user comfort and ease of use in shared workspaces and home offices alike. Its soft-touch suspension mesh offers a perfect blend of comfort and support. Controls are intuitively placed and colour-coded for straightforward operation and allow you to find your ideal sitting position quickly and easily. The Kirn home office chair can also be customised with an air-cell lumbar support and multi-adjustable arms, catering to your individual preferences.

  2. Innovative Seat Mechanism: Kirn introduces an ingenious approach by replacing traditional under-seat mechanisms with lightweight springs. This not only enhances the chair's visual and material lightness but also simplifies its setup. The seat, back, and arms are seamlessly integrated, reducing material usage and creating a more streamlined and contemporary appearance.

  3. Environmental Responsibility: Kirn is constructed using Econamid®, an eco-conscious choice. This recycled plastic material significantly reduces CO2 emissions—by an impressive 97% compared to virgin plastic. Beyond material selection, Kirn's design prioritises resource efficiency, utilising recycled materials wherever feasible.

In summary, Kirn represents a harmonious fusion of sustainability, comfort, innovation, and adaptability, setting new standards for contemporary task chairs.

For more details of the adjustable functions of this chair, we recommend watching the Kirn user guide video.

Key Features & Measurements
    • Model Name: Kirn Task Chair
    • Manufacturer: Orangebox (UK)
    • Assembly Type: Delivered fully assembled
    • Warranty: 5 years
    • Mesh Colour Options: Charcoal (dark grey) or Smoke (light grey)
    • Plastic Trim Colour Options: Black or White
    • Control Lever Colour Options: Grey or Yellow
    • Arm Type: 2D Height adjustable (100mm) and invertible with gel arm pad as standard. Fully rotatable 4D arms can be added as an optional extra.
    • Seat Actions: Adjustable seat depth (70mm) and height adjustment (415-585mm) as standard
    • Seat Back: Breathable mesh with 20 degree synchronised recline and automatic weight tensioner. 
    • Lower Back Support: Built in mesh lumbar support as standard. Optional height and depth adjustable lumbar system with 100mm height adjustment available in black or white.
    • Headrest: Optional mesh headrest is colour matched to seat colour
    • Chair Base: 5 star wheeled based in textured black or textured white 
    • Wheel Options: Available with wheels or fixed glider feet 
    • Max User Weight: 150KG / 23.5 Stone (Recommended)
    • Dimensions (WxDxH): 708x640x1050mm
    • Item Code: KIRN-HBA
    Delivery and Returns Policy

    Delivery Policy


    • Free delivery options
    • Where do you deliver?
    • How long will my delivery take to arrive?
    • Is there a way to track my order?
    • Delivery access requirements
    • My delivery has not arrived, what should I do?
    • How to report missing or damaged items

    Free Delivery options

    All products come with free delivery to mainland UK.

    Quick Ship or stocked office chairs and accessories are delivered by courier in 3 to 6 working days to a ground floor entrance or hallway. Made to order chairs are delivered fully assembled and free of charge in around 4-6 weeks depending on the model chosen and the manufacturer.

    Stocked office desks, office storage and other larger items come with free room of choice delivery in 3 to 6 working days depending on the model and manufacturer chosen. You will receive notice of the intended delivery date by email.

    Where do you deliver?

    We currently deliver to Mainland UK only which excludes Northern Ireland, the Highlands and any offshore islands.

    How long will my delivery take to arrive?

    We aim to deliver stocked or Quick Ship items within 3-6 working days on any order placed before 14:00pm. If you place an order after 14:00pm, on a weekend or bank holiday your order will be processed on the next working day. Made to order items are delivered in 4 to 6 weeks depending on the model and manufacturer chosen.

    How do I track my order?

    Orders placed before 14:00pm will receive an order confirmation the same day with an indicated day of delivery. We can give you an estimated 2 hour time window for your delivery on request. Please email or call us on 0345 3405324.

    Delivery access requirements

    We require access for a 7.5 tonne vehicle and notice should be given in advance if there are any special access requirements. If we are unable to deliver your item due to insufficient access, it may be returned to us and further delivery charges will be made to redeliver your items.

    What should I do if my delivery doesn’t arrive?

    If your goods have not arrived on the indicated delivery day, please email or call us on 0345 3405324. We will contact the courier on your behalf and provide a resolution as quickly as possible, normally the same working day.

    How to report missing or damaged items

    If you have any damaged or missing items, please refer to our Returns Policy where full details can be found.

    Returns Policy


    • How to cancel an order
    • 30 day return policy (stocked items)
    • Made to order returns
    • How to report missing or damaged items
    • Reporting a fault with a product
    • Incorrect items received
    • Warranty coverage and claims
    • When will my refund arrive?

    How to cancel an order

    You can cancel your order by telephone, email or live chat. If your order hasn’t left the factory or production of made to order items has not been started, there will be no cost incurred to you and a full refund will be issued with funds clearing in your bank account in 2-3 working days. If your order has already left us and you have taken or refused delivery of the item, then please refer to the “30 day return policy (stocked items)” section below.

    30 day return policy (stocked items)

    You have 30 days in which to return an unwanted item to us. We can only accept an item that is unused and in its original, unopened packaging. Any item that has damage or open packaging will be returned to the customer. Returned goods will be inspected for damage and a 25% restocking and collection charge will be levied against the value of the original items.

    Made to order returns

    Any products manufactured by Orangebox are made to order only and cannot be returned as they are made specifically for the customer on request. The name of the product manufacturer is in the "key features and measurements" section on any product page. Damaged items will be repaired and replaced as per our standard damage policy in the next section.

    How to report missing or damaged items

    If any parts of your order are missing or damaged, please look up the part numbers on the assembly instructions and email them to If the replacement parts are in stock, you will normally receive them within 1-2 working days. If not in stock we will contact you with a delivery date.

    Reporting a fault with a product

    If you have a technical fault with your product please report it by email, live chat or telephone within 48 hours of delivery and we will provide a replacement part or unit. You may also be covered by the manufacturer’s warranty covered below.

    Incorrect items received

    If you receive incorrect items, please notify our customer services team by telephone, email or live chat within 48 hours. We will arrange for a courier to collect the incorrect items and either replace what is missing in 1-2 working days or advise of a delivery date if the parts are not in stock.

    Warranty coverage and claims

    All products are guaranteed against manufacturing defects, except for upholstery, castors and mechanisms which are subject to usage related wear and tear. The warranty is effective from the day the product leaves the factory and the manufacturer reserves the right not to apply the warranty in cases of inappropriate use or when a product has been tampered with by a third party or interventions by non-authorised personnel. All complaints concerning the goods must be made in writing and the company shall undertake to repair any product or part of a product that proves to be faulty. Warranty claims can be made directly to Fenstone Group Ltd or to the product manufacturer, which can be found on the “essential product information” tab on any product page.

    When will my refund arrive?

    Once approved a refund should be in your bank account in 2-3 working days. If it has not arrived, please contact us and we will be happy to assist you.