How to Buy an Office Chair: What Really Matters
A feature-by-feature guide to how an ergonomic chair fits your body, matched to the way you sit and to your budget, with the warning signs of a poor buy.
Start with lumbar support that moves up and down, then check that seat depth suits the length of your thighs and that the armrests adjust in height. Brand names and looks come after those adjustments. Once the chair arrives, set it up in the right order. If you already know which chairs you are comparing, skip to Section 7 or try the SeatedLab Chair Finder.
This guide is for you if
- You are buying your first ergonomic office chair
- You want to understand which features matter before comparing specific models
- You sit for most of the workday and want a chair that supports that
- You are unsure how much to spend or whether to buy new or refurbished
Not for you if
- You already know which two or three chairs you are deciding between (see the Best Office Chairs hub instead)
- You need a specialized medical or bariatric chair
- You sit only occasionally and do not experience discomfort
In This Guide
Price says little about fit, which depends on how each adjustment range compares with your height, thigh length and weight.
Section 1: What Really Matters in an Ergonomic Chair
Lumbar Support
Lumbar support sits at the lower back’s inward curve. Adjustable lumbar support lets you move the pad to your own curve, and a fixed pad helps only if it happens to land in the right place. Height travel is the figure to compare: on the Steelcase Think, the lumbar moves from 5.25 to 10.25 inches from the seat.
Seat Depth
The seat pan should leave roughly two to three fingers of space between its front edge and the backs of your knees. A seat that is too deep pushes you away from the backrest, and one that is too shallow leaves your thighs unsupported. Seat depth adjustment ranges vary by model: the Steelcase Think’s slider runs from 15.75 to 18.75 inches, and the Series 2 slider gives 2.5 inches of travel.
Seat Height
Your feet should rest flat on the floor with your knees at roughly a 90-degree angle. Compare the published height range with your own measurements before buying. The Herman Miller Cosm ranges from 14.8 to 21.4 inches according to Herman Miller’s specs page, and the Steelcase Series 1 from 15.5 to 20 inches.
Backrest Height and Shape
Backrest height sets how much of your back the chair contacts, so taller sitters should compare it. Steelcase lists the Gesture’s back at about 24 inches from the seat, and the Leap V1 Highback extends the Leap V1 backrest for upper-back and shoulder coverage. The tall-sitter roundup is Best Ergonomic Chairs for Tall People.
Armrest Adjustability
Armrests should support your forearms without pushing your shoulders up. Height adjustment is the minimum, and width and pivot adjustment add control during keyboard and mouse work. The Steelcase Gesture’s arms are 360-degree, with height, width, pivot and depth adjustment.
Recline and Tilt
For long sessions, look for recline with adjustable tension and a lock you can set. The Steelcase Think reclines from 96 to 120 degrees with an upright lock, while the Herman Miller Cosm’s automatic tilt has no tension dial and no recline lock.
Section 2: Headrests, Seat Materials and Brand Names
Headrests
A headrest matters only if you lean back far enough to rest your head, for example on long calls. Decide before ordering, because some headrests cannot be added later: the Steelcase Gesture’s optional headrest is factory-installed only. The Series 2 also lists an optional headrest, though it cannot be fitted at the same time as the optional coat hanger.
Suspension vs. Foam
Seat construction differs by chair. The Aeron’s seat is 8Z Pellicle elastomeric suspension with no foam cushion. The Steelcase Series 2 uses high-density foam with flexible edges and adaptive bolstering, and the Steelcase Amia’s adaptive foam seat is softer than the Leap’s.
Sizing Within a Model
The Aeron is sold in three sizes with seat depth fixed by size: 16 inches on size A, 17 on size B and 18.5 on size C. An Aeron in the wrong size has no seat depth adjustment to fall back on. The Herman Miller vs Steelcase page compares the two brands across their full product lines.
Section 3: How to Think About Budget
Warranty length is one published difference between price tiers: 7 years on the Branch Ergonomic Chair, 12 years on the Herman Miller Aeron, and Steelcase Limited Lifetime coverage on the Gesture.
| Budget Range | What You Get | Best For | Watch Out For |
|---|---|---|---|
| Under $300 | Chairs that vary widely in adjustment range and warranty, so the published specs are the comparison point | Part-time use, secondary workspaces, or a first purchase | Listings that mention adjustability without printing a seat height range or lumbar travel. Check both before buying |
| $300 to $500 | Chairs such as the Branch Ergonomic Chair ($369 direct, 7-year warranty, 8 adjustment points) and the Steelcase Series 1 (~$499, 12-year warranty, 4D arms) | Full-time workers on a tighter budget | Warranty coverage on mechanisms, and weight capacity: 275 lb on the Branch Ergonomic Chair, 400 lb on the Series 1 |
| $500 to $900 | Most remanufactured Steelcase chairs and the remanufactured Aeron Classic, plus new Steelcase models such as the Series 2 (~$724) | Full-time workers who want a Herman Miller or Steelcase frame below the new price. A remanufactured Aeron Classic or Leap V2 falls in this range | Dealers that give no written warranty. Crandall Office backs its remanufactured chairs with a 12-year parts warranty and free returns |
| $900 and up | New Herman Miller chairs and Steelcase’s higher-end models such as the Leap V2 and Gesture, which carry 12-year warranties or Steelcase Limited Lifetime coverage | Buyers who spend most of the workday in the chair and want full manufacturer warranties | Buying without sitting in the chair first. A showroom visit helps where one is available |
Section 4: Finding the Right Chair for Your Sitting Style
You sit relatively still in one position
The Aeron comes in sizes A, B and C, each with a fixed seat depth, so sizing comes first. Its seat is 8Z Pellicle elastomeric suspension with no foam cushion. Configured with PostureFit SL, it supports the sacral region, and its optional tilt limiter holds the back at one of three positions: fully upright, mid-recline or full recline.
You shift postures constantly throughout the day
The Leap V2 pairs a LiveBack backrest with a height-adjustable lumbar and a separate firmness dial. A 5-position tilt lock with tension control sets how freely the back reclines.
You work across multiple devices throughout the day
If your hands move between a keyboard and a phone or tablet for much of the day, the range of arm adjustment is the spec to compare. The Gesture’s arms adjust in height, width, pivot and depth.
You want the backrest tuned to your spine
Herman Miller describes the Embody’s BackFit adjustment as letting you fine-tune the chair to your spine, after which the back adapts to your movement. The seat and back use what Herman Miller calls Pixelated Support, seat depth adjusts from 15 to 18 inches, and a fully adjustable arms option is offered.
You are open to a remanufactured chair
Crandall Office remanufactures the Leap V2 with its 12-year warranty. The remanufactured Aeron there is the Aeron Classic, the pre-2016 design, so check its specs separately from the current Aeron’s.
If you are still narrowing down your options, the SeatedLab Chair Finder walks you through a few quick questions to match you with specific chairs. For picks sorted by price, start with Best Office Chairs Under $1,000. Lower budgets have their own roundups in Best Office Chairs Under $500 and Best Office Chairs Under $300.
Section 5: How Long Office Chairs Last
Herman Miller covers the Aeron for 12 years of three-shift use. Steelcase covers the Gesture’s structural parts for life and its mechanism, cylinders, arm caps, foam and casters for 12 years. The Branch Ergonomic Chair carries a 7-year warranty, and the Secretlab Titan Evo carries 3 years, extendable to 5.
How Long Do Office Chairs Last covers what wears out and when to replace a chair.
Section 6: Chairs Reviewed on SeatedLab
Herman Miller Aeron
Sold in sizes A, B and C, each with a fixed seat depth. The seat is 8Z Pellicle suspension with no foam cushion, and the PostureFit SL configuration supports the sacral region.
Read the full review →Configure the Aeron at Herman Miller →
Steelcase Leap V2
A LiveBack backrest with a lumbar that has separate height and firmness controls. Crandall remanufactures it with a 12-year warranty.
Read the full review →Steelcase Leap V2 on Amazon (~$1,499) →
Remanufactured from Crandall →
Steelcase Gesture
The 360-degree arms adjust in height, width, pivot and depth. The seat depth slider runs from 15.75 to 18.5 inches, and the chair is rated for 400 lb.
Read the full review →Steelcase Gesture on Amazon (~$1,611) →
Remanufactured from Crandall →
Herman Miller Embody
Rated for 300 lb, with seat depth adjustable from 15 to 18 inches. Buying direct keeps Herman Miller’s 12-year warranty, which holds only through Herman Miller and its authorized resellers.
Read the full review →Configure the Embody at Herman Miller →
Branch Ergonomic Chair
3D arms and a height-adjustable lumbar. It carries a 7-year warranty and is rated for 275 lb, so heavier sitters should look at the 400 lb Steelcase chairs instead.
Read the full review →Branch Ergonomic Chair Pro review →
Secretlab Titan Evo
The Regular size is rated for a 285 lb maximum load, with recline from 85 to 165 degrees and a tilt lock. The warranty is 3 years, extendable to 5.
Read the full review →Secretlab Titan Evo on Amazon (~$669) →
Section 7: Head-to-Head Comparisons
Chair Comparisons
- Herman Miller Aeron vs Embody
- Herman Miller Aeron vs Steelcase Leap V2
- Herman Miller Aeron vs Steelcase Gesture
- Herman Miller Embody vs Steelcase Leap V2
- Herman Miller Embody vs Steelcase Gesture
- Steelcase Leap V2 vs Gesture
- Herman Miller Cosm vs Aeron
- Herman Miller Cosm vs Embody
- Secretlab Titan Evo vs Aeron
- Branch vs HON Ignition 2.0
- Branch vs Steelcase Series 1
- Aeron vs Gesture vs Titan Evo (three-way)
- Aeron vs Gesture vs Titan Evo vs Embody (four-way)
- Herman Miller vs Steelcase: Full Brand Comparison
Worth-It Guides
Buying Guides
- Should I Buy a Refurbished Office Chair?
- How Long Do Office Chairs Last?
- Office Chair vs Gaming Chair
- Office Chair Lumbar Support: What Actually Works
- Office Chair Seat Depth: How to Get It Right
- Best Office Chairs (2026): All Categories
- Best Office Chairs for Back Pain
- Best Office Chairs for Tailbone Pain
- Best Ergonomic Chairs for Tall People
- Best Office Chairs for Small Frames
- Best Office Chairs for Big and Tall
Section 8: Red Flags to Avoid
No seat depth adjustment
A fixed seat pan fits only the thigh lengths it was sized for. The Aeron fixes seat depth by size (16 inches on size A, 17 on B, 18.5 on C), and the Herman Miller Cosm has one fixed 15.9-inch seat.
Lumbar support that cannot move up and down
A fixed lumbar pad supports only the sitters whose lower-back curve it happens to meet. Check that the lumbar moves in height and compare the travel: the Gesture’s optional lumbar add-on has a 4-inch height range, and the Leap V2’s lumbar adjusts in height with a separate firmness dial.
Short warranties
Published warranties in this guide range from 3 years on the Secretlab Titan Evo (extendable to 5) and 7 years on the Branch Ergonomic Chair to 12 years on Herman Miller chairs, and the Gesture carries Steelcase Limited Lifetime coverage, with its terms in Section 5. Compare the term and the parts it covers.
Weight capacity that barely covers you
Listed capacities range from 275 lb on the Branch Ergonomic Chair and 300 lb on the Embody to 350 lb on the Herman Miller Cosm and 400 lb on the Steelcase chairs in this guide. The Aeron’s capacity depends on size, from 300 lb on size A to 400 lb on size C. Compare the rating with your weight before buying.
Heavily discounted “premium” chairs from unknown sellers
A chair sold as a Herman Miller or Steelcase at a price far below remanufactured rates calls for a closer look at the seller. Buy a new Herman Miller from Herman Miller or an authorized reseller, since its 12-year warranty holds only there, and buy remanufactured from a dealer that backs its work with a written warranty, such as Crandall Office.
No return window
Fit can take days of use to judge, so check the return terms before buying. Branch accepts returns within 30 days of delivery and deducts a flat $40 return shipping fee per chair, and Crandall Office offers free returns on its remanufactured chairs.
Frequently Asked Questions
The Bottom Line
Fit the chair to your body first, then narrow the shortlist by sitting style and budget using Sections 3 and 4. The recline angle guide covers how far a chair reclines within a working range. To compare specific chairs, the Best Office Chairs (2026) hub lists picks by category, and the Chair Finder matches chairs to your answers.