FAQ’s

The Humanscale Freedom is designed with “passive ergonomics,” meaning it automatically adjusts its recline resistance based on your body weight. Once you set the initial manual adjustments for your height and size, you shouldn’t need to change them again. You can set your height based on these adjustments:

• Seat Height: While seated, lift the lever on the right side of the seat cushion. Position the chair so your feet are flat on the floor and your thighs are parallel to it.
• Seat Depth: Pull the lever or tab located under the front edge of the seat and slide the seat forward or backward. Leave at least two inches of space between the front of the seat and the back of your knees.
• Backrest Height: While seated, grip the lower corners of the backrest with both hands. Squeeze the handle on the right side and slide the backrest up or down to align the lumbar support with the curve of your lower back.
• Armrest Height: Tilt the front of the armrests upward to unlock them. Move them to your desired height—both arms move together in unison—and release them to lock them back into place.
• Headrest Height (if equipped): Simply grasp the headrest with both hands and slide it up or down until it comfortably supports your neck. It is designed to automatically move out of the way when you sit upright.

The Humanscale Freedom Chair is covered by a 15 year warranty on most of its components. Fabrics, cushions, arm pads and castors have a 5 year warranty, whilst the frame, cylinder, base and mechanism have the full 15 years worth of cover. In terms of usage, the warranty covers up to 8 hours of continuous use of the chair per day.

The Humanscale Freedom chair was designed by legendary industrial designer Niels Diffrient in 1999. Often referred to as the “father of ergonomics,” Diffrient designed the chair to automatically adapt to the user’s body weight, eliminating the need for manual tension adjustments, knobs, or levers.

The key distinction between the Humanscale Freedom and the Freedom Task chair lies in the headrest. The standard Freedom model usually includes a headrest and is built for relaxation and reclined comfort, whereas the Freedom Task version has a lower back design aimed at more active, desk-based work. While both feature the same weight-responsive recline system, the Task chair is better suited to maintaining an upright posture during focused typing.

Absolutely. If you’re looking to purchase a large quantity of Humanscale Monitor Arms, contact us with your enquiry. We’ll help you determine everything you need from specifications (M10, M8.1 or M2.1), to accessories, monitor fixing plates and more. Just let us know how many desks and displays you need to accommodate and we’ll help you work out the ideal solution.

A monitor arm is an adjustable mounting system that secures a computer screen to a desk or wall, replacing the fixed stand that typically comes with a monitor. It allows the display to be raised, tilted and rotated so it can be positioned at a comfortable viewing height and distance, helping to reduce strain on the neck and eyes while also creating more usable desk space. Most monitor arms use a clamping mechanism and either gas-spring or mechanical support to hold one or more monitors securely in place.

Humanscale monitor arms are backed by a 10 year warranty period. This demonstrates Humanscale’s confidence and commitment to durability.

Yes. Humanscale offers single, dual, triple and even quadruple monitor arm configurations. This is ideal for professionals who multitask, work with large datasets, or require multiple applications open at once.

Humanscale monitor arms are typically installed using either a desk clamp or a grommet mount. A desk clamp attaches securely to the edge of the desk without drilling, while a grommet mount fits through a pre-drilled hole in the desk. Both installation options are designed to be straightforward and usually take only a few minutes with basic tools.

Humanscale monitor arms support monitors with standard VESA mounting patterns (typically 75x75mm or 100x100mm). Each model also has a specific weight range it can support, so it’s important to check that your monitor falls within the recommended weight limits. If your monitor does not have a VESA mount, adapter plates are often available.

Absolutely! Humanscale monitor arms (M2.1, M8.1, and M10) are the best in class solution for users seeking durable, ergonomic, and stable support for heavy or ultrawide monitors. Their weight-compensating design allows smooth, tool-free adjustments, offering more reliability than cheaper alternatives. Made from high-quality metal and aluminium, they combine long-lasting build quality with a minimalist look and integrated cable management. Features like Smart Stop technology and quick-release VESA plates make them versatile and easy to use, suitable for both traditional and sit-stand desks.

Humanscale monitor arms, including the 2.1, are engineered for long-term use with high-quality materials. They typically come with a 10-year warranty on mechanics, reflecting the brand’s confidence in durability and reliability.

Yes. Every new Herman Miller Aeron chair purchased from an official supplier like Office Chairs UK comes backed by a comprehensive 12-year manufacturer’s guarantee. This extensive warranty covers 24/7 continuous use and includes both parts and labour. Crucially, it covers the key moving and structural parts of the chair, including the gas lift cylinder, castors, tilt mechanism, frame, and even the 8Z Pellicle mesh suspension fabric.

The Aeron is available in several sophisticated finishes designed to seamlessly blend with any executive suite or home office aesthetic. These include Graphite (the iconic dark grey/black look), Onyx (a deep, ultra-matte true black), Mineral (a light, airy off-white/grey ideal for modern, bright environments), and Carbon (a sleek neutral tone). For an elevated, high-end aesthetic, you can also opt for a Polished Aluminium frame and base finish.

The Aeron features a proprietary, cutting-edge textile called 8Z Pellicle. This advanced fabric blend is composed of 56% elastomeric fibers and 44% polyester. The elastomeric elements allow the mesh to stretch and dynamically shift with your movements, while the polyester provides immense durability. It boasts an exceptional Wyzenbeek abrasion rating of 200,000 double rubs—making it ready for heavy-duty, commercial-grade use—while remaining entirely PFAS-free, PVC-free, and breathable.

PostureFit SL is Herman Miller’s premier, adjustable lumbar support system. It consists of two individual, flexible pads that automatically adapt to your back. The lower pad stabilizes the base of your spine (the sacrum), while the upper pad supports the natural inward curve of your lower back (the lumbar region). By reinforcing these critical areas, PostureFit SL prevents slouching, reduces spinal fatigue, and encourages a healthy, active posture during long sitting sessions.

The Aeron Remastered is a comprehensive update of the original 1994 Classic Aeron, redesigned alongside co-designer Don Chadwick. Key improvements include an upgraded 8Z Pellicle mesh suspension, which features eight distinct zones of varying tension for superior pressure distribution. It also features a more responsive tilt mechanism, a lighter footprint utilizing sustainable ocean-bound plastics, and advanced PostureFit SL lumbar support, which independently stabilizes both the sacrum and the lumbar region.

Unlike most office chairs, the Herman Miller Aeron is designed in three distinct sizes to provide a custom-tailored ergonomic fit:

• Size A (Small): Optimized for smaller frames, generally accommodating individuals up to 5’2″ (157 cm) tall and up to 130 lbs (59 kg).

• Size B (Medium): The most popular and versatile choice, engineered to fit the vast majority of the adult population (ranging roughly between 5’2″ and 6’2″).

• Size C (Large): Designed for taller or broader individuals, supporting users up to 6’6″ (198 cm) and up to 300 lbs (136 kg). To find your perfect match, we highly recommend consulting the Aeron Size Chart found in our buying guide before purchasing.

The MillerKnoll collective was formed in 2021 when Herman Miller officially acquired its chief historic competitor, Knoll, in a landmark merger. This union brought together two of the world’s most influential modern design brands under one collective banner. Today, MillerKnoll operates as a powerful global platform of design brands, continuing the historic legacy of innovation, workplace ergonomics, and mid-century modern design heritage established over the last century.

While Herman Miller produced innovative office systems (such as the Action Office system in the 1960s), its major pivot into specialized, high-performance ergonomic seating accelerated in the late 20th century. The defining moment in this transition occurred in 1994 with the release of the Aeron Chair, designed by Bill Stumpf and Don Chadwick. Rejecting traditional foam and leather upholstery in favor of a breathable mesh suspension, the Aeron revolutionized workplace health and became the company’s bestselling product of all time.

In the 1950s, the Swiss furniture company Vitra became Herman Miller’s official licensee in continental Europe. This partnership deepened into a joint venture known as Herman Miller AG. When the formal partnership dissolved in 1984, an agreement was reached allowing Vitra to retain the exclusive production and distribution rights for historic mid-century designs (by the Eameses, George Nelson, and Isamu Noguchi) across Europe and the Middle East. Meanwhile, Herman Miller maintained global rights elsewhere, which is why classic Eames furniture is sold under the Vitra brand name in the UK today.

Throughout the 20th century, Herman Miller partnered with legendary designers who shaped mid-century modern aesthetics and ergonomic engineering. Key historic figures include:

• Gilbert Rohde: The designer who initially steered the company away from traditional furniture toward modernism in the 1930s.

• George Nelson: Appointed as the first design director, he brought in seminal talents and designed iconic mid-century pieces.

• Charles and Ray Eames: Renowned for their groundbreaking molded plywood, fiberglass, and lounge chairs.

• Alexander Girard & Isamu Noguchi: Masters of textile design and sculptural furniture, respectively.

• Bill Stumpf & Don Chadwick: The revolutionary duo who co-designed the world-famous Aeron Chair in 1994.

The roots of Herman Miller date back to 1905, when it was originally founded as the Star Furniture Company in Zeeland, Michigan. In its earliest years, the company specialized exclusively in manufacturing highly detailed, traditional, and ornate wooden bedroom furniture suites. It wasn’t until the 1930s that the company transitioned away from historical reproductions to become a pioneer of industrial modernist design.

Herman Miller was a successful Michigan businessman who helped finance his son-in-law, D.J. De Pree, to purchase a majority stake in the Michigan Star Furniture Company in 1923. Although Herman Miller was the primary investor, he never actually worked for the company or participated in its daily operations. D.J. De Pree renamed the business the Herman Miller Furniture Company as a gesture of gratitude and respect toward his father-in-law.

Yes they all brand new and genuine , we buy all the products direct form the manufacturers including the stock we keep. If you are still unsure we are happy to provide the manufacturers details so you verify us and the products.

We have spent a lot of time making sure that our website and our client’s information is 100% secure. We have recently upgraded our site to HTTPS  (https://www.officechairsuk.co.uk/we-are-100-secure/) as shown in the address bar on your browser. This is the new google standard for security. Below we have put some industry information about this type of security for your perusal.

What is HTTPS?

This is a way to encrypt information sent between you and the web server. This means that your logins, payment and address details are safe and will not be able to be accessed by third parties.

Most of the chairs are fully assembled there are some product exceptions (eg desk and tables)  this information is found on all product pages under sizing/assembly & warranty information.

Herman Miller Castors

Carpet Castors (BB) Will work fine on all carpeted services

Multi Floor Castors (C7) Are designed to work on all services and roll freely

Multi Floor Castors (C9) Are designed to work on all surfaces have a braking system which allows the chair to roll slowly when you are not sitting on it .

DC1 (Aeron Chair) Designed specifically for the Aeron Chair only and will work on all surfaces have a braking system which allows the chair to roll slowly when you are not sitting on it .

All Other Manufacturers Castors

Carpet Castors will work fine on all carpeted services

Hard Floor Castors Are designed to work on all services and roll freely

Glides Are a fixed option and the chair will not move at all ( You would have to lift the chair to move it ) mainly used on draughtsman and meeting chairs.

What Castors will work on Carpet protection mats?

Carpet castors will work equally as well as hard floor castors. Select what ever the floor is under the mat so if you have a carpet select carpet castors, then you can you use the chairs if the mat is not in place.

Yes, we will need an email confirmation (Sales@officechairsuk.co.uk) please within 24 hours from placing the order

Of course, we are open to everybody and all orders no matter of size are very important to us.

Yes, Simply add the delivery address during the order process and will deliver for you no problem.

We can deliver outside the UK Mainland information on the charges and VAT is calculated during the checkout process.

Our Incoterms of Sale for orders with a delivery address in the EU are Delivered at Place (DAP). This means that your order may be subject to Import Duty Fees and VAT in your country.

BUT DURING THE ORDER PROCESS YOUR ORDER WILL BE ZERO RATED AND UK TAX(VAT) WILL NOT BE CHARGED.

THE DELIVERY CHARGE IS CALCULATED AT THE CHECKOUT ONCE THE ADDRESS IS ENTERED

IF YOU WANT MORE THAN ONE PRODUCT DELIVERED OUTSIDE THE UK CONTACT US VIA EMAIL FOR A PRICE AS THE WEBSITE WILL MULTIPLY THE CHARGE BY HOW MANY PRODUCTS ARE IN THE BASKET

sales@officechairsuk.co.uk

PLEASE CHECK YOUR COUNTRY’S OWN VAT AND CUSTOMS IMPORT DUTY SO YOU ARE AWARE WHAT FEES WILL BE PAYABLE.

If you would like to return an item.

If the item is damaged or faulty, we will collect it for Free.

If you have had a change of heart or the product is not suitable you can make a simple and easy return or exchange .

We do expect that you have sat in the chair to see if it is suitable.

RETURNING ITEMS FROM STOCK MUST BE IN THE CONDITION THEY WERE RECEIVED AND IN ALL THE ORIGINAL PACKAGING. ( Without all of the Original packaging we can’t take anything back as it is needed not only for re sale but for transportation)

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 and we would deduct any return shipping cost from the refund. Generally the cost for us to arrange a chair return ( Uk mainland) will be £25 plus vat, smaller items eg monitor arms will be £10 Plus vat we can deduct it from your refund.

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

Once the goods are back with us and checked a refund be issued please allow for the banking system to process the money back to you.

If you originally selected to pay an additional charge for quick delivery we will only refund the price paid for the item and not the enhanced delivery charge.

Made to Order / Bespoke items cannot be returned please refer to our T&C’s

If you have any damage on delivery or if the item is faulty please contact us asap. Could you please email us the following information:

Your order number, the address where the item is located, photographs of any damage or a description of what is wrong.

Please send this email to Logistics@officechairsuk.co.uk

Our Family Business was established in 1971 and is still family run.

• All prices shown are nett of discount which may vary depending on the brand or product. We make every effort to monitor the market weekly to make sure we are competitive as possible on all products.
• Please ask us if your potential order qualifies for additional discount depending on quantity. You can call our sales team on 0345 600 1917 or email sales@officechairsuk.co.uk and we can discuss what discount level may be available. We are very happy to either provide you with a written quotation or alternatively a discount code to be entered at the checkout! 
• From time to time we do run promotions which can be seen on the product pages and in promotional ad boxes.

Most of the chairs are fully assembled there are some product exceptions (eg desk and tables)  this information is found on all product pages under sizing/assembly & warranty information.

Yes, Simply add the delivery address during the order process and will deliver for you no problem.

We can deliver outside the UK Mainland information on the charges and VAT is calculated during the checkout process.

Our Incoterms of Sale for orders with a delivery address in the EU are Delivered at Place (DAP). This means that your order may be subject to Import Duty Fees and VAT in your country.

BUT DURING THE ORDER PROCESS YOUR ORDER WILL BE ZERO RATED AND UK TAX(VAT) WILL NOT BE CHARGED.

THE DELIVERY CHARGE IS CALCULATED AT THE CHECKOUT ONCE THE ADDRESS IS ENTERED

IF YOU WANT MORE THAN ONE PRODUCT DELIVERED OUTSIDE THE UK CONTACT US VIA EMAIL FOR A PRICE AS THE WEBSITE WILL MULTIPLY THE CHARGE BY HOW MANY PRODUCTS ARE IN THE BASKET

sales@officechairsuk.co.uk

PLEASE CHECK YOUR COUNTRY’S OWN VAT AND CUSTOMS IMPORT DUTY SO YOU ARE AWARE WHAT FEES WILL BE PAYABLE.

If you would like to return an item.

If the item is damaged or faulty, we will collect it for Free.

If you have had a change of heart or the product is not suitable you can make a simple and easy return or exchange .

We do expect that you have sat in the chair to see if it is suitable.

RETURNING ITEMS FROM STOCK MUST BE IN THE CONDITION THEY WERE RECEIVED AND IN ALL THE ORIGINAL PACKAGING. ( Without all of the Original packaging we can’t take anything back as it is needed not only for re sale but for transportation)

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 and we would deduct any return shipping cost from the refund. Generally the cost for us to arrange a chair return ( Uk mainland) will be £25 plus vat, smaller items eg monitor arms will be £10 Plus vat we can deduct it from your refund.

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

Once the goods are back with us and checked a refund be issued please allow for the banking system to process the money back to you.

If you originally selected to pay an additional charge for quick delivery we will only refund the price paid for the item and not the enhanced delivery charge.

Made to Order / Bespoke items cannot be returned please refer to our T&C’s

If you have any damage on delivery or if the item is faulty please contact us asap. Could you please email us the following information:

Your order number, the address where the item is located, photographs of any damage or a description of what is wrong.

Please send this email to Logistics@officechairsuk.co.uk

All Our products carry a manufacturers warranty which may vary in length depending on the brand and product, this can be easily found on the product pages under the sizing and warranty information.

Should you have an issue please email logistics@officechairsuk.co.uk

We would like the following information if possible:-

1. A brief description of the issue
2. Your order number
3. The address where the product is and a phone no
4. A picture of the label from under the chair ( don’t worry if there is not a a label)
5. Any other pictures or a video would be helpful