Why Your Chair’s Adjustment Order Decides the Fit

Same chair, two fits. Two people set up the identical chair, one comfortable and one sore, and the difference is not the chair or even which settings they chose, but the order they chose them in. Adjust the parts out of sequence and each change undoes the last, so you set the lumbar to support a posture that the seat height then shifts, and tune the armrests to a height the seat depth then changes. The chair moves through every adjustment and still does not fit, because the order was wrong.

The reason is that the adjustments depend on each other in one direction. Where you sit is set from the ground up: the seat height decides your foot contact and knee angle, which decides your pelvis position, which decides where the lumbar should meet your back and where the armrests should catch your elbows. Set in that order, each adjustment builds on a settled foundation; set in any other, the later changes move the foundation the earlier ones assumed. An ergonomic chair is only as good as the order it is set in, and the ergonomic guidance from bodies like the Canadian Centre for Occupational Health and Safety has long put seat height first and armrests last for exactly this reason, a sequence still reflected in 2026 setup guides.

A chair only fits if it is adjusted in the order its parts depend on. In my testing, the most common cause of a good chair feeling wrong was not a missing feature but a setup done in the wrong sequence, lumbar first, height last, so nothing held. Understanding why the adjustment order decides the fit is what turns a chair full of levers into a chair that actually fits the body sitting in it.

Why Seat Height Sets Everything Below It

Seat height comes first because it decides the position of everything beneath you, and everything beneath you decides the rest. When you set the height so your feet rest flat and your knees sit at about a right angle, you fix the foundation the whole posture is built on: the feet are anchored, the pelvis is level, and the body has a stable base to sit up from. Set the height wrong and the feet dangle or the knees rise, tilting the pelvis and unsettling everything above it, so no later adjustment can compensate for a base that is itself off.

This is why seat height cannot be set last or skipped. Every adjustment above it, the lumbar, the armrests, the recline, is set relative to where the pelvis and spine sit, and the seat height is what places them. Change the height after setting the lumbar and the lumbar no longer meets the curve it was set to; change it after the armrests and the elbows no longer fall where the arms were set. The height is the foundation, so it has to be poured first, which is the logic the whole sequence follows, as laid out in how to set up your ergonomic chair properly in under 20 minutes.

Why the Desk Height Is Part of the Same Step

Seat height does not stand alone, because it has to be set against the desk, which is why the desk belongs in the same early step. The right seat height puts your feet flat and knees square, but it also has to leave your forearms level with the desk for typing, and those two requirements can conflict if the desk is fixed. When the desk is too high, raising the seat to meet it lifts the feet off the floor, which is why a footrest or a height-adjustable desk enters here, to resolve the conflict at the foundation rather than papering over it higher up. Setting the seat and desk relationship together, early, prevents a mismatch that no lumbar or armrest setting can fix, which is the relationship worked through in the ideal desk height based on your height.

The Right Order, Step by Step

Because each step depends on the one before, the sequence itself is the method. The table below sets out the order, what to adjust at each step, and why it has to come where it does.

Step	Adjust	Why it comes here
1	Seat height and desk	Sets foot contact, knee angle, the whole foundation
2	Seat depth	Fixes thigh support and the gap behind the knees, once height is set
3	Backrest and lumbar	Meets the spine only after the pelvis is placed
4	Recline tension	Tuned to the settled, supported posture
5	Armrests	Catch the elbows last, once the body has stopped moving

Read down the table and the dependency is clear: each step assumes the ones above it are fixed, so doing them out of order forces a redo. Seat depth needs the height set to judge the gap behind the knees; the lumbar needs the pelvis placed to meet the curve; the armrests need the whole posture settled to catch the elbows where they actually fall. The order is not a preference but the only sequence in which the steps do not undo each other, and the chair’s range of adjustment is best judged by working through it, which the chair walkthroughs on YouTube show more clearly than a settings list does.

Why Doing It Out of Order Feels Like a Bad Chair

The reason a wrong-order setup gets blamed on the chair is that the result feels like a chair that cannot fit. You set the lumbar and it feels right, then you fix the height and it feels wrong, and without seeing that the height moved the lumbar, you conclude the chair’s lumbar is poor. Each later adjustment quietly spoils an earlier one, so the chair seems to resist fitting no matter how much you fiddle, and the natural conclusion is that the chair is the problem. In truth the parts are fine and the sequence is wrong, which is why a chair that felt unfittable often comes good the moment it is set from the ground up. A good chair set in the wrong order can feel worse than a basic chair set right.

When the Order Matters Most

In fairness, the order matters more for some chairs and bodies than others, and it is worth saying when. On a simple chair with few adjustments, the sequence barely matters, because there is little to undo, and on a body that sits near the average the default settings are close enough that order is forgiving. The sequence becomes decisive on a highly adjustable chair, where many interdependent settings can be set against each other, and on a body away from the average, tall, short, long in the torso, where the settings have to be moved far from default and a wrong order compounds. So the more adjustable the chair and the further the body from average, the more the order decides the fit.

This is exactly when a premium office chair with a full set of adjustments rewards being set in sequence, because every extra lever is another thing a wrong order can spoil.

The range of ergonomic desk chairs for home and office in Australia is best matched to a body by someone who sets each chair up in the right order, since only then does its real fit show.

Common Mistakes

The first mistake is starting with the lumbar or the armrests. These are the last steps, because they depend on where the pelvis and body settle, which the seat height decides. Set them first and the seat height will move the body out from under them.

The second is setting the seat height without the desk. The two have to be resolved together, since meeting the desk can lift the feet off the floor. A footrest or a height-adjustable desk belongs at the foundation, not as a fix higher up.

The third is blaming the chair when a wrong-order setup feels bad. Each later adjustment quietly spoils an earlier one, so the chair seems unable to fit. The parts are usually fine and the sequence is wrong, which is why setting from the ground up often fixes it.

The fourth is fiddling endlessly without restarting in order. Once the adjustments have been set against each other, small tweaks cannot recover the fit, because the foundation is off. The fix is to start again at seat height and work up, not to keep adjusting from a bad base.

The fifth is assuming order does not matter on any chair. It matters most on a highly adjustable chair and a body away from the average, where settings move far from default and a wrong order compounds. The more there is to adjust, the more the sequence decides the result.

Conclusion

Your chair’s adjustment order decides the fit because the adjustments depend on each other in one direction, from the ground up. The seat height sets your foot contact, knee angle, and pelvis position, which decide where the lumbar should meet your back and where the armrests should catch your elbows, so setting height first gives every later step a settled foundation. Set in any other order, the later changes move the foundation the earlier ones assumed, and the chair passes through every adjustment without ever fitting.

Set from the bottom up: seat height and desk first, then seat depth, then the backrest and lumbar, then recline tension, and the armrests last. Each step assumes the ones before it are fixed, so this is the only sequence in which the steps do not undo each other. A good chair set in the wrong order can feel worse than a basic chair set right, which is why a chair that seems unfittable so often comes good the moment it is set in sequence. The fit was never only in the settings; it was in the order they were set.

Frequently Asked Questions

What order should I adjust my office chair in?

From the ground up: seat height and desk first, then seat depth, then the backrest and lumbar support, then recline tension, and the armrests last. Each step depends on the ones before it, since the seat height sets your pelvis position, which decides where the lumbar and armrests should go. This bottom-up order is the sequence in which the adjustments do not undo each other.

Why does seat height come first?

Because it sets the foundation everything else is built on. The seat height decides your foot contact and knee angle, which set your pelvis position and the whole posture above it. Every later adjustment, the lumbar and armrests, is set relative to where the pelvis sits, so if you change the height afterward, it moves the body out from under the settings you already made.

Why does my good chair still feel uncomfortable?

Often because it was set up in the wrong order. If you set the lumbar or armrests first and the seat height last, the height shifts your body out from under the earlier settings, so nothing holds and the chair feels unable to fit. The parts are usually fine and the sequence is wrong, which is why setting it again from the ground up frequently fixes the discomfort.

Should I adjust the desk height too?

Yes, together with the seat height, because the two interact. The right seat height puts your feet flat and knees square, but it also has to leave your forearms level with the desk, and those can conflict if the desk is fixed. If meeting the desk lifts your feet off the floor, add a footrest or use a height-adjustable desk, resolving the conflict at the foundation rather than higher up.

Why are the armrests set last?

Because they have to catch your elbows where your arms actually fall, and that is only fixed once the whole posture has settled. Your seat height, depth, and lumbar all move where your torso and arms sit, so setting the armrests before those are done means setting them to a position that later changes. Adjusting them last, once the body has stopped moving, is the only way they land right.

Does adjustment order matter on every chair?

It matters most on a highly adjustable chair and for a body away from the average. On a simple chair with few settings there is little to undo, and an average body sits close to the defaults. The sequence becomes decisive when many interdependent settings can be set against each other and the body needs them moved far from default, where a wrong order compounds into a poor fit.