Data table

Heavy-Duty Ergonomic Chairs (350+ lb Capacity)

11 of the 30 chairs carry a manufacturer-rated weight capacity of 350 lbs or more.

11 rows · Updated 2026-07-20 · Click a column to sort

Chairs rated by their manufacturer for 350 lbs or more, from Herman Miller Aeron and Steelcase's 400 lb-rated Leap, Gesture, Series 1/2 and Think to Secretlab's 395 lb-rated Titan Evo.

		Manufacturer-published maximum user weight	99 = manufacturer's "limited lifetime" warranty, not a literal year count		Manually adjustable lumbar support; auto-flexing "always-on" lumbar (no user control) counts as false	Fixed, height-only, 2D/3D/4D/5D (4D = height, width, depth, pivot; 5D adds pad-width), or none; config-dependent chairs show the top available option (see basis)	Manufacturer's own claim of ANSI/BIFMA X5.1 compliance — not independently registry-verified (see provenance)	Current MSRP, July 2026, base configuration/fabric unless noted in basis
Steelcase Leap V2	Steelcase	400 lbs	99 years	✓	✓	4D	✓	$1099
Steelcase Gesture	Steelcase	400 lbs	99 years	✓	✓	4D	✓	$2412
Steelcase Series 1	Steelcase	400 lbs	99 years	—	✓	height-only	✓	$530
Steelcase Series 2	Steelcase	400 lbs	99 years	—	✓	4D	✓	$747
Steelcase Think	Steelcase	400 lbs	99 years	—	✓	4D	✓	$1742
Secretlab Titan Evo 2022	Secretlab	395 lbs	5 years	—	✓	4D	—	$549
Herman Miller Aeron	Herman Miller	350 lbs	12 years	—	✓	4D	✓	$2150
Herman Miller Sayl	Herman Miller	350 lbs	12 years	✓	✓	4D	✓	$980
Herman Miller Mirra 2	Herman Miller	350 lbs	12 years	✓	✓	4D	✓	$1312
Haworth Fern	Haworth	350 lbs	12 years	—	—	4D	✓	$1099
Herman Miller Aeron (Remastered, size B)	Herman Miller	350 lbs	12 years	—	✓	4D	✓	$2150

About this data

This is a filtered view of Ergonomic Office Chair Specs (30 rows). Specs are transcribed from each manufacturer's own product/spec pages (Herman Miller, Steelcase, Haworth, HON, Branch, Autonomous, Secretlab, Sihoo, IKEA, Staples/Union & Scale) as cited per row in `basis`. We attempted to use the ANSI/BIFMA X5.1 Compliant Products registry (bifmacompliant.org) as an independent certification spine per the research thesis; the domain is parked (GoDaddy lander, no product database) and bifma.org returns a Cloudflare bot-challenge to automated fetches, so no independent registry lookup was possible this session. `bifmaCertified` therefore reflects each manufacturer's own claim of ANSI/BIFMA X5.1 testing/compliance as stated on its product page, flagged as a claim rather than a registry-verified fact. Weight capacity and warranty figures came directly from manufacturer spec tables. Full live re-check 2026-07-20: every row was checked against its manufacturer's current page (one sub-agent per chair; full record in data/sources/chairs-verification-2026-07-20.md). 15 rows corrected and marked "re-verified live 2026-07-20" in their basis, 1 verified clean; 11 rows could not be reached (bot walls, 429s, broken CMS pages — Haworth, Sihoo, Staples, X-Chair, Secretlab Titan Evo, HON Ignition) and keep their original medium-confidence values, flagged per row; 3 products appear discontinued (Autonomous ErgoChair Plus, HON Exposure, Flexispot BS8 Pro) and are flagged in basis, kept as historical rows. priceUsd records the current list/MSRP figure; temporary sale prices observed at check time are noted in basis instead.