An RH chair arrives with nine adjustments on it, and most of them are on levers you cannot see from the seated position until somebody shows you where they are. The chairs are built so that every lever carries a pictogram and sits where a seated hand can find it — which is RH's answer to the usual reason an expensive chair disappoints, that it gets adjusted once in the first week and then left on its factory setting for six years.
This is the order to work through them in. It is not our order: it is the sequence RH prints on the instruction card that ships in the box, and there is a logic to it. Each adjustment sets the reference point for the next one. Set the seat height last and you have to redo the armrests. Set the armrests first and you will set them twice.
It covers the RH New Logic 220 and the RH Mereo 300 and Mereo 220 — the three RH task chairs we hold in Sydney. The controls are the same family on all three; where a published figure differs between them, both are given. If you are still deciding which of them to buy rather than how to set one up, our RH chairs buying guide is the one to read first.
Before you start: find the levers
Sit in the chair, push it back from the desk and run your hand under the front right of the seat, then under the left. On a New Logic 220 you will find a cluster of three levers under the seat and a pump at the back of the backrest. Every one is marked with a pictogram of what it does. Spend thirty seconds finding all of them before you change anything — the single biggest cause of a badly set-up chair is somebody discovering the fourth lever in month three.
Have the desk at its working height before you start, and if it is a sit-stand desk, set it to the seated height. The whole sequence below is measured against the desk.
Step 1. Seat height
Everything else references this, so it goes first. Sit back in the chair with your feet flat on the floor and raise or lower the seat until your thighs are roughly level and your forearms come to the desk without your shoulders lifting. If the desk is fixed and too high for you — common in older Sydney fit-outs — set the chair for your arms and put a footrest under your feet rather than dropping the seat and working with your shoulders up.
RH offers the Mereo and the New Logic on more than one gas stem, and the range you get depends on the stem your chair was ordered with. Ring us on 02 9640 0642 and we will measure the chair on the showroom floor and confirm the range for your exact order in writing.
Step 2. Backrest height
The whole backrest moves up and down on both families, which is the adjustment people most often do not know exists. Raise or lower it so the fullest part of the back support sits at the small of your back rather than above or below it.
Published ranges, measured from the seat: 581 to 681 mm on the New Logic 220, and 564 to 642 mm on the Mereo 220 and 300. The backrests themselves are 620 mm high on the New Logic and 630 mm on both Mereos.
Step 3. The lumbar pump
With the backrest at the right height, set how far forward the support comes. On the New Logic 220 the lumbar support adjusts 135 to 233 mm above the seat; on the Mereo, 132 to 210 mm. Work it in small increments and sit against it for a minute between changes. More is not better — you are matching the shape of your own back, not pushing against it.
Step 4. Seat depth
Now the seat slide. Slide the seat until there is roughly a two-finger to four-finger gap between the front edge of the seat and the back of your knees. Too deep and you will perch forward and lose the backrest you just set; too shallow and the seat carries your weight on too little of your thigh.
This is where the New Logic pulls ahead of most chairs in its class. Its slide gives an effective seat depth of 400 to 499 mm on a seat 442 mm wide and 477 mm deep. The Mereo gives 403 to 483 mm on a seat 410 mm wide and 465 mm deep. Both are a genuine 80 to 99 mm of travel, which is what a shared desk needs if two people of different heights use the same chair across a day.
Seat depth is the measurement people look at last and the one that most often decides whether a chair works. Our guide to office chairs and pregnancy goes through why, for anyone whose measurements are changing week to week.
Step 5. Unlock the dynamic tilt
Find the tilt lever and open it. Both families use a tilt that is infinitely adjustable and will lock in any position, and RH's advice is to leave it unlocked so the chair follows you as you move. Lock it when you have a task that genuinely needs you still, and release it again afterwards.
This is the step most people skip, usually because the chair arrived locked and they assumed that was how it was meant to be. A locked tilt turns an active chair into a fixed one.
Step 6. Backrest angle
Separate from the tilt, and on its own lever: the angle of the back relative to the seat. The New Logic 220 adjusts through 19° and the Mereo through 23.7°. Set it so you are supported when you sit back to read or think, without having to come forward off the backrest to reach the keyboard.
Step 7. Tilt resistance
Then set how much push it takes to tip the chair back. This is the adjustment that most obviously depends on body weight, and it is worth resetting if the chair changes hands. Wind it up until you can recline with a light, deliberate push and the chair returns under you rather than dropping away.
Step 8. The armrests
Arms come near the end because they follow everything else: seat height, seat depth and backrest angle all move where your elbows end up. On the New Logic 220 the armrests adjust in height, width, depth and rotation.
The width figure is the one worth knowing. The New Logic 220's armrests set 318 to 515 mm apart — 197 mm of adjustment, the widest range on any chair we sell, and the narrowest setting as well at 318 mm. The Mereo's optional 8T armrests run 355 to 510 mm. Height above the seat is 199 to 315 mm on the New Logic and 195 to 310 mm on the Mereo.
Set them so your forearms rest level without your shoulders rising, then bring them in or out until they are under your elbows where your elbows naturally fall — not where the chair left them. If the gap between the armrests is the measurement that has to give in your case, the New Logic is the chair in this range to ask about.
Step 9. The neckrest
Last, and only if your chair has one. The neckrest adjusts for height and depth on both families. Set it to meet the back of your head when you are reclined rather than when you are upright — it is there for the reclined position, and set for upright it will push your head forward all day.
The published figures, side by side
All from Flokk's own factsheets for the two families.
| Measurement | New Logic 220 | Mereo 220 | Mereo 300 |
|---|---|---|---|
| Seat width | 442 mm | 410 mm | 410 mm |
| Seat depth | 477 mm | 465 mm | 465 mm |
| Seat depth with slide | 400–499 mm | 403–483 mm | 403–483 mm |
| Seat angle adjustment | +8.6° / −15.5° | +7.7°–16° | +7.7°–16° |
| Backrest height | 620 mm | 630 mm | 630 mm |
| Backrest width | 433 mm | 365 mm | 400 mm |
| Backrest height above seat | 581–681 mm | 564–642 mm | 564–642 mm |
| Lumbar support above seat | 135–233 mm | 132–210 mm | 132–210 mm |
| Back angle adjustment | 19° | 23.7° | 23.7° |
| Armrest height above seat | 199–315 mm | 195–310 mm | 195–310 mm |
| Distance between armrests | 318–515 mm | 355–510 mm | 355–510 mm |
| Base diameter | 680 mm | 680 mm | 680 mm |
Which of the three suits you
The New Logic 220 is the executive chair of the range and the one to specify when the armrest gap or the seat slide is the measurement that has to give. It comes with a standard or an extra-large seat; the standard seat is what we hold. It is the chair for a long, seated day at one desk.
The Mereo 300 is the everyday task chair, with a flat square backrest 400 mm wide. It is the one to choose if you are broad across the shoulders or you simply prefer upright support to a back that wraps in around you. Developers ask us about it more than any other RH chair, and our guide to the best office chair for programmers and developers in Australia sets out why.
The Mereo 220 is the same chair with a curved back 365 mm wide. We hold it in the smallest numbers of the three at any given moment, so ring us rather than assuming there is one on the shelf.
If your site runs shifts around the clock, none of these three is the right answer and the RH Secur24 in our 24/7 chairs collection is — that is a different guarantee and a different chair. Tell us the shift pattern and we will point you at the right one.
What they cost in Australia
Checked live on 28 September 2026.
- RH New Logic 220 — $3,251.70 with the standard seat, in Select or Capture fabric. In stock.
- RH Mereo 300 — $2,157.00 in Black, $2,329.00 in Black Paloma leather. Both in stock.
- RH Mereo 220 — limited; ring first for the current finish and price.
All three carry Flokk's ten-year guarantee at normal use of up to nine hours a day, for users up to 150 kg, assessed and handled by us in Sydney. Full terms are on our warranty page, and they sit in addition to your rights under the Australian Consumer Law. Our guide to office chair weight ratings in Australia explains how to read a figure like that properly.
How it fits the rest of the desk
A chair set up properly will show you that the monitor is in the wrong place. Once the seat height is set by your forearms rather than your eyes, the screen usually needs to come up. A CBS Flo Single monitor arm at $279.00 or an Ollin at $314.00 will take the screen to where your eyes already are, and both are in stock.
Go through the nine steps again a week after you first set the chair up. Something will have moved, and the second pass is the one that sticks.
The full range is in our RH collection, alongside every other brand in our task chairs collection, and you can sit in all of it at our Pyrmont showroom by appointment.
Frequently asked questions
What order should I adjust an RH chair in?
RH publishes the order on the instruction card that ships with the chair: seat height first, then backrest height, then the lumbar pump, then seat depth, then unlock the dynamic tilt, then backrest angle, then tilt resistance, then the armrests, and the neckrest last. Each step sets the reference point for the one after it, which is why working through them in order takes about five minutes and working through them at random can take weeks.
Should I lock the tilt on an RH chair?
RH's advice is to leave it unlocked. The tilt on both the New Logic and the Mereo is infinitely adjustable and will lock in any position, but it is designed to be left open so the chair follows you as you shift. Lock it when you need to sit still for a fixed task, then release it again.
How wide do the armrests on an RH New Logic 220 go?
Flokk publishes a distance between the armrests of 318 to 515 mm on the New Logic 220, which is 197 mm of width adjustment. That is the widest armrest range on any chair we sell, and the narrowest setting as well at 318 mm. The armrests also adjust 199 to 315 mm above the seat.
What is the seat depth range on an RH Mereo 300?
The Mereo 300 has a seat slide giving an effective seat depth of 403 to 483 mm, on a seat 465 mm deep and 410 mm wide. The RH New Logic 220 slides further, 400 to 499 mm, on a 442 mm wide seat.
What is the difference between the RH Mereo 220 and the Mereo 300?
The mechanism, the seat and every adjustment range are the same. The difference is the shape of the back. The Mereo 220 has a curved backrest 365 mm wide that wraps in around you; the Mereo 300 has a flat square backrest 400 mm wide. Both are 630 mm high. Choose the 300 if you are broad across the shoulders or prefer upright support to a back that curves in.
Does the RH New Logic 220 come in more than one seat size?
Yes. It is offered with a standard seat or an extra-large seat. The standard seat is what we hold in Sydney; the extra-large is an order-in. Ring us before you set your heart on the extra-large so we can tell you the current lead time.
Which RH chair has the widest armrest adjustment?
The New Logic 220, at 318 to 515 mm apart. The Mereo 220 and Mereo 300 take their optional 8T armrests from 355 to 510 mm. If the gap between the armrests is the measurement that has to give, the New Logic is the chair.
What does the RH warranty cover?
Flokk provides a ten-year guarantee on RH chairs in normal use for up to nine hours a day, for users up to 150 kg. Chair Dinkum is the exclusive Australian distributor for the Flokk group, so claims are assessed and handled by us in Sydney rather than routed offshore. This guarantee is in addition to your rights under the Australian Consumer Law. Our goods come with guarantees that cannot be excluded under the Australian Consumer Law.
Can I sit in an RH chair in Sydney before I buy one?
Yes. The range is at our Pyrmont showroom and you can sit in it by appointment. If you are specifying for a floor rather than a desk, bring the schedule and we will work through it with you.
References
- Flokk, RH Logic 200/220 instruction card (ENG)
- Flokk, RH Logic 200 & 220 factsheet (RH_Logic_200_220_factsheet_EN.pdf and RH_Logic_200_220_factsheet_English.pdf)
- Flokk, RH Mereo factsheet (RH_Mereo_Factsheet_ENG.pdf)
- Flokk, warranties and product quality
- Prices and stock checked against our live catalogue on 28 September 2026.
