Best Office Chair for Tall People in Australia
If you are 185cm or taller, most office chairs run out of adjustment before you run out of leg. The fix is not a “big and tall” label — it is three checkable numbers: a seat height range that tops out around 55cm or more, a backrest and headrest tall enough (or height-adjustable enough) to land where your spine and neck actually are, and a weight rating with honest margin. Measured against those numbers, the strongest picks in Desk One's ergonomic range are the Apex Ergo (seat height 48–56cm), the Ergo Supreme (43.5–59cm) and the Ergo Pro (46–55cm, rated to 150kg). This guide explains why each number matters and where the rest of the range fits.
Why standard chairs come up short for tall users
A chair sized for the average frame fails a tall body in predictable ways. If the seat cannot rise far enough, your knees sit above your hips and your weight rolls back onto the tailbone. If the backrest is short, its lumbar curve presses into the mid-back instead of the lower back, and the headrest — where fitted — catches the neck rather than cradling the head. And if the seat pan is shallow relative to your thigh length, the front edge stops supporting the leg well short of the knee. None of this is about comfort preferences; it is geometry, and it is why the checklist below is all measurements.
Seat height: the first number to check
Seat height is the spec that disqualifies most chairs fastest. The top of the gas lift range is what matters: a chair that reaches 50cm suits most users to around 190cm, and taller users benefit from more. In Desk One's range, the Ergo Supreme has the highest ceiling at 43.5–59cm, the Apex Ergo runs 48–56cm — notably, its 48cm minimum is also the highest floor in the range, a chair genuinely built to sit tall — and the Ergo Pro covers 46–55cm. By contrast, the entry-tier task chairs run 39–49cm, which is precisely the mirror image of this guide: those ranges are ideal for smaller frames, as covered in our office chairs for petite users guide.
Backrest and headrest: support that lands where you are
Once the seat is right, the backrest decides whether the chair supports a long torso or just sits behind it. The Apex Ergo takes the most direct approach in the range: its entire backrest, lumbar support included, adjusts in height from 61cm to 68cm, with a U-shaped headrest that rides a further 13–21cm above the backrest and a total chair height of up to 135.5cm. The Ergo Supreme stands 119–139cm overall, with a headrest that rotates through 60 degrees and a lumbar system adjustable across up to 20cm of height. The Ergo Pro reaches 131cm with its height- and angle-adjustable U-shaped headrest atop a spine-mirroring arc backrest. If you are weighing tall-back designs against shorter ones more generally, our high-back vs mid-back guide covers that decision on its own.
Seat depth and armrests: the long-limb details
Longer thighs need a deeper effective seat, otherwise the pan ends mid-thigh and the front edge does nothing. Seat-depth adjustment solves this properly: the Apex Ergo's seat slides across a 42–44.5cm range, and the Prime, Grid and Ultra Flex in the premium tier all include sliding seat-depth adjustment as well. Long forearms make armrest travel matter too: the Apex Ergo and Ergo Pro use 3D armrests (height, depth and lateral adjustment), while the Prime, Grid, Ultra Flex and Ultra step up to 4D. Fixed armrests, common on entry chairs, are the first thing tall users notice going wrong — usually as shoulders hitching up to reach a rest that sits too low.
Weight rating and build
Height usually brings weight, and the rating printed on the listing is the honest signal that frame, base and gas lift were tested together. Three chairs in the range are rated to 150kg: the Apex Ergo, the Ergo Pro and the Ergo Plus — the Apex on a 70cm-wide polished aluminium base, the Ergo Pro on an aluminium alloy base. Most of the rest of the range carries 120–135kg ratings. If capacity is your primary spec rather than height, our 150kg heavy-duty chair guide goes deeper on build quality at that rating.
The tall-friendly picks, side by side
| Model | Seat height | Overall height | Weight rating | Why it suits tall users |
|---|---|---|---|---|
| Apex Ergo | 48–56cm | 113–135.5cm | 150kg | Height-adjustable backrest (61–68cm), headrest 13–21cm above it, sliding seat depth |
| Ergo Supreme | 43.5–59cm | 119–139cm | Not stated | Tallest seat-height ceiling in the range; lumbar adjustable across up to 20cm; built-in footrest |
| Ergo Pro | 46–55cm | 114.5–131cm (with headrest) | 150kg | Spine-arc high back with adjustable U-shaped headrest; BIFMA certified |
| Ergo Plus | 44–50cm | 116.5–122.5cm | 150kg | Dual lumbar pads that keep contact through the full 95–152° recline |
Of the four, the Apex Ergo is the most complete answer for very tall users because it moves the support to you rather than asking you to fit the chair; the Ergo Supreme wins on outright seat height; and the Ergo Pro is the value pick with flagship geometry. The executive range also runs tall — several leather models pair high backs with integrated headrests — though with less granular adjustment than the mesh line.
Do not forget the desk
A chair raised to 55cm only works if the desk above it cooperates — fixed-height desks force tall users into exactly the hunch a tall chair prevents. If you are sorting the whole workstation, our standing desks for tall people guide covers the desk half of the equation, including which frames extend far enough for users over 190cm.
Frequently Asked Questions
What seat height does a tall person need in an office chair?
As a rule of thumb, your seat height should let your feet sit flat with knees at roughly desk-chair height rather than above your hips. Users around 185cm and over typically need a seat that reaches 50cm or more at the top of its range. Desk One's Apex Ergo reaches 56cm and the Ergo Supreme reaches 59cm.
Which Desk One chairs suit users over 190cm?
The Apex Ergo (seat height 48-56cm, backrest height adjustable 61-68cm, total height up to 135.5cm) and the Ergo Supreme (seat height 43.5-59cm, overall height up to 139cm) offer the most headroom in the range. The Ergo Pro also runs tall, at up to 131cm with its adjustable U-shaped headrest.
Is a high back or a tall seat height more important for tall users?
Seat height first: if your knees sit above your hips, no backrest can fix your posture at the desk. Once the seat is right, backrest height decides whether the lumbar curve and headrest land where your body actually is - which is why the Apex Ergo's 61-68cm height-adjustable backrest is so useful for long torsos.
What weight rating should tall users look for?
Taller users are often heavier simply through frame size, so the stated rating matters. Desk One's Apex Ergo, Ergo Pro and Ergo Plus are all rated to 150kg, against the 120-135kg ratings common elsewhere in the range.
Is seat-depth adjustment worth it for tall users?
Yes - longer thighs need a deeper effective seat so the front edge supports the leg without pressing behind the knee. The Apex Ergo's seat slides across a 42-44.5cm depth range, and the Prime, Grid and Ultra Flex also include seat-depth adjustment.
What if I am at the other end of the height scale?
The same logic runs in reverse: shorter users need a low minimum seat height rather than a high maximum, which is exactly what Desk One's entry task chairs with 39-49cm ranges provide. Our separate guide to office chairs for petite users covers that end of the scale in detail.
