You’re 6’2″, your knees are jammed against the underside of your desk, and the “ergonomic” chair your office provided gives out at the lumbar region somewhere around your lower ribs. Sound familiar? Standard office chairs are built for people around 5’6″ to 5’10”, which means anyone over six foot is either perching on the edge or sliding down until their spine resembles a question mark. The fix isn’t just buying a bigger chair — it’s knowing which measurements actually matter and which “tall person” labels are just marketing.
In This Article
- Why Standard Chairs Fail Tall People
- The Measurements That Actually Matter
- Our Top Pick for Most Tall People
- Best Desk Chairs for Tall People Compared
- How to Set Up Your Chair When You’re Tall
- Standing Desk and Chair Combinations for Tall Users
- Budget Options Under £300
- What About Gaming Chairs?
- Where to Buy in the UK
- Frequently Asked Questions
Why Standard Chairs Fail Tall People
Most office chairs have a seat depth of 42-46cm, a backrest height of 50-55cm, and a maximum seat height of around 50cm. If your legs are longer than average, the seat pan cuts into the backs of your knees — creating pressure that causes numbness after an hour. The backrest stops mid-back instead of supporting your shoulder blades, and the headrest (if there is one) pushes your head forward rather than cradling it.
The Knock-On Effect
It’s not just discomfort. A chair that’s too small forces compensatory postures — leaning forward, crossing legs, slouching — that compound into genuine back problems over months. The Health and Safety Executive recommends that display screen equipment should be adjustable to suit the individual user, and that explicitly includes chair sizing.
Who Counts as “Tall”?
For chair sizing purposes, if you’re over 5’11” (180cm), most standard office chairs won’t adjust far enough. Over 6’2″ (188cm) and you’ll definitely need a chair marketed specifically at taller users. Over 6’5″ (196cm) and your options narrow considerably — but they exist.
The Measurements That Actually Matter
Ignore marketing labels like “XL” or “Big & Tall” — they often just mean a wider seat for heavier users, not a taller backrest or deeper seat pan. Here’s what to check:
Seat Height Range
You need a chair that goes high enough for your thighs to be parallel to the floor with feet flat. For someone 6’2″, that’s typically 50-54cm seat height. For 6’4″+, you need 54-58cm. Most standard chairs top out at 50-52cm.
Seat Depth
The distance from the front edge to the backrest. You want at least 48cm, ideally 50-52cm for taller users. Too shallow and your thighs hang off the edge. Too deep and you can’t use the backrest without the front edge digging into your knees.
Backrest Height
Measure from the seat pan to the top of the backrest. For proper upper back and shoulder support, you need at least 65cm. A headrest adds another 15-20cm, which is essential for anyone wanting to recline occasionally without their head dropping backward.
Weight Capacity
Taller people tend to be heavier — not always, but chair engineers factor this in. A chair rated to 120kg will have sturdier components (gas lift, base, castors) than one rated to 100kg. Even if you weigh 85kg, the higher-rated chair will feel more solid.
Our Top Pick for Most Tall People
BASETBL C051B Heavy Duty Big & Tall — best overall for genuinely tall users
The BASETBL C051B is the strongest fit here because its useful dimensions are published rather than hidden behind a vague “big and tall” label. The seat adjusts from 49 to 57cm high, measures 55cm deep and 60cm wide, and sits in front of a 78cm backrest. That combination gives long thighs and a tall torso more room than a standard task chair. The 200kg stated capacity is reassuring, but the height and depth measurements are the real reason it leads this list.
It is a large faux-leather executive chair with an adjustable headrest, padded arms, a retractable footrest and a 90-120° recline. The trade-offs are equally clear: it weighs about 27kg, takes up substantial floor space and will feel oversized for a smaller user. Measure your desk clearance and the space between your desk legs before ordering. Our guide to comfortable desk chairs under £500 explains the wider buying trade-offs.
If you prefer breathable mesh or need finer ergonomic adjustment, the TONFARY Fary819 is the better alternative. If you are only just over average height, the cheaper SIHOO M18 may fit, but its own manufacturer recommends it for users no taller than 180cm.
Best Desk Chairs for Tall People Compared
BASETBL C051B — Best Overall for Very Tall Users
- Best for: long-legged users who need a genuinely high, deep and wide seat
- Seat height: 49-57cm
- Seat depth: 55cm
- Backrest height: 78cm, plus adjustable headrest
- Weight capacity: 200kg stated maximum
- Main drawback: bulky 27kg executive-chair build
- Where to buy: Amazon UK
The BASETBL is the clearest choice for someone around 188cm or taller because it reaches 57cm at the seat and provides a full 55cm of thigh support. Do not buy it only because of the 200kg rating: plenty of wide heavy-duty chairs still sit too low. Buy it because its seat height, depth and 78cm backrest all support the same tall-user brief.
TONFARY Fary819 — Best Adjustable Mesh Chair
- Best for: tall users who prefer breathable mesh and adjustable seat depth
- Seat height: about 45-55cm
- Seat depth: about 50cm, with a 5cm slider
- Backrest: high mesh back with adjustable headrest
- Weight capacity: 150kg stated maximum
- Main drawback: less established UK support than long-running office-chair brands
- Where to buy: Amazon UK
The Fary819 is the most ergonomic of the four. Its seat slider matters for long thighs, while the adjustable lumbar support, 3D armrests and headrest give you more ways to place support where a taller body actually needs it. The listing describes a fit range up to roughly 192cm, but treat that as a guide rather than a guarantee: leg-to-torso proportions vary, so compare the 55cm maximum seat height and 50cm seat depth with your current chair.
SIHOO M18 — Best Budget Option for Moderately Tall Users
- Best for: users up to about 180cm who want a proven budget ergonomic chair
- Seat height: about 44-54cm
- Seat depth: about 45.5cm
- Backrest: mesh with adjustable lumbar support and headrest
- Weight capacity: 136kg stated maximum
- Main drawback: not a convincing fit for genuinely tall or long-legged users
- Where to buy: Amazon UK
The M18 is often marketed as “big and tall”, but SIHOO’s own UK product page says it works best for people between 150 and 180cm. That makes it a sensible value chair for someone at the lower edge of this article’s audience, not a recommendation for a 193cm user. Its adjustable lumbar support and headrest are useful, but the fixed 45.5cm seat depth is the limiting measurement.
IWMH Executive Chair — Best Heavy-Duty Budget Option
- Best for: heavier or broader users who prioritise a 181kg rating and padded executive-chair feel
- Overall dimensions: about 74 x 74 x 115cm
- Backrest: high padded back with lumbar support
- Weight capacity: 181kg stated maximum
- Armrests: padded and flip up for desk clearance
- Main drawback: the listing does not publish enough seat-height and seat-depth detail to prove a very-tall fit
- Where to buy: Amazon UK
The IWMH is here for weight capacity and width, not because “big and tall” automatically means long-leg friendly. Its high back, padded seat and flip-up arms make it a practical lower-cost executive chair, but buyers over 188cm should ask the seller for the exact seat-height range and usable seat depth before ordering. If those measurements are not confirmed, choose the BASETBL instead.
How to Set Up Your Chair When You’re Tall
Buying the right chair is half the job. Setting it up incorrectly wastes the investment. You might also find our Monitor Size Guide: What Size Do You Need for Your Desk? guide useful here. You might also find our Monitor Size Guide: What Size Do You Need for Your Desk? guide useful here.
Step-by-Step Setup
- Set seat height so your feet are flat on the floor and thighs parallel. Knees should be at roughly 90 degrees.
- Adjust seat depth so there’s a 2-3 finger gap between the front edge and the back of your knees. This prevents circulation issues.
- Position the lumbar support at your natural lower back curve — for most tall people, this is higher than the default position. Slide it up until it sits snugly in the hollow of your spine.
- Set armrest height so your elbows rest at 90 degrees without hunching your shoulders up or letting them sag.
- Adjust the headrest (if fitted) so it cradles the base of your skull, not pushes against the back of your head.
- Tilt tension should be firm enough that you don’t flop backward when you lean, but loose enough that reclining doesn’t require effort.
The Desk Height Problem
Here’s what catches people out: if your chair is set high enough for your legs, your desk might now be too low. Standard UK desks are 72-75cm high. At a proper seat height for someone 6’2″+, your thighs might not fit underneath. This is where height-adjustable standing desks earn their keep — not just for standing, but for dialling in the exact sitting height too.
Standing Desk and Chair Combinations for Tall Users
If you’re over 6’2″, a sit-stand desk solves the mismatch between chair height and desk height that plagues tall people with fixed desks. Set the desk to your ideal seated height (which might be 78-82cm rather than the standard 72-75cm), then raise it further for standing breaks.
Best Combinations
- BASETBL C051B + a low-start sit-stand desk: the 49-57cm seat range suits long legs, while the adjustable desk prevents your thighs hitting a standard low desktop.
- TONFARY Fary819 + FlexiSpot E7: the chair’s seat-depth adjustment and the desk’s broad height range make this the more adaptable mesh setup.
- SIHOO M18 + compact sit-stand desk: a lower-cost combination for users near 180cm, but not the right pairing for someone well over 6 foot.
A sit-stand desk does not rescue a chair whose seat is too shallow or whose lumbar support lands in the wrong place. Set the chair first, then bring the desktop to your elbows. That avoids the common standing desk mistakes caused by forcing your body to fit a fixed surface.
Budget Options Under £300
What You Sacrifice
At this price, expect one or two of: fixed seat depth, basic armrests, a shorter warranty, thinner foam or less-established after-sales support. The key measurements should still be right. Do not compromise on seat height, usable depth or backrest position just to save money.
Worth Considering
- SIHOO M18: the safest budget choice for users up to about 180cm; established model, adjustable lumbar support, but too shallow for many genuinely tall users.
- IWMH Executive Chair: useful when a 181kg rating and padded width matter most; confirm seat height and depth with the seller before buying for long legs.
- TONFARY Fary819: worth stretching for when its live price falls below £300, because the adjustable seat depth is more valuable to tall users than cosmetic extras.
Amazon prices and vouchers move frequently, so use the buttons above for the current total rather than relying on an old crossed-out price. A cheap chair that cannot place your feet, knees and lumbar support correctly is not a bargain.
What About Gaming Chairs?
Most gaming chairs marketed as “XL” or “big and tall” focus on width and weight capacity rather than the dimensions tall people actually need. The real test is seat height, usable depth, backrest position and armrest range. Side bolsters and a large capacity number do not fix a short seat pan.
The Exceptions
The BASETBL C051B is the closest gaming-style option in this refreshed list, with a deep 55cm seat, 57cm maximum height, recline and retractable footrest. Its plain black executive shape also looks less out of place on work calls than a racing bucket chair.
Even then, choose it for the published dimensions rather than the gaming features. The footrest and recline are extras; the 49-57cm seat range and 78cm backrest are what make it useful for a tall desk user.
Where to Buy in the UK
Try Before You Buy
You may not find every model in a showroom, but it is still worth sitting in several office chairs at IKEA, John Lewis or a specialist ergonomic showroom first. Record the seat height, depth and backrest position that feel right, then compare those measurements with the published dimensions of the chair you plan to buy.
Online Retailers
- Amazon UK: carries all four exact products in this guide; check the named seller, delivery date and returns wording before payment.
- Manufacturer websites: useful for checking dimensions and intended user ranges even when you buy elsewhere.
- Refurbished-office specialists: a sensible alternative when you want a premium ergonomic brand and a written refurbishment warranty.
Keep the packaging until you have assembled and adjusted the chair. A returns policy is only useful if you can comply with the seller’s condition and collection requirements, and a large chair can be awkward and expensive to send back.
Frequently Asked Questions
What chair height do I need if I’m 6 foot 2? Start around 50-54cm, then adjust until your feet are flat and your thighs are roughly parallel to the floor. Your leg proportions matter more than height alone, so use the chair’s range rather than one fixed number.
Which chair in this guide is best for a very tall person? The BASETBL C051B is the strongest fit because it combines a 49-57cm seat-height range, 55cm seat depth and 78cm backrest. The TONFARY Fary819 is the better mesh alternative when adjustable seat depth matters.
Is the SIHOO M18 suitable for someone over 6 foot? SIHOO says the M18 works best for users between 150 and 180cm, so it is not our choice for someone well over 6 foot. It remains a good-value ergonomic chair for users near the lower edge of the tall range.
Does a high weight capacity mean a chair suits tall users? No. Weight capacity describes load, not leg or torso fit. Check maximum seat height, usable seat depth and backrest or headrest position separately.
Do I need a footrest if I’m tall? Usually no. Tall users more often need extra seat and desk height. A footrest is useful only when the chair must sit higher than your feet can comfortably reach or when a fixed desk forces a compromise.