SIHOO M56C vs Steelcase Series 1
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
$364.01
lower starting price for SIHOO M56C than Steelcase Series 1 at the brand stores
Differences at a glance
Sources
- Sihoo M56C Ergonomic Office Chair - Full Back Support with Cotton Seat Cushion – Official US Sihoo Store ↗Checked Oct 13, 2026
- Understanding and Specifying Steelcase Series 1 Work Chairs (Seating Specification Guide, February 2024) ↗Checked Sep 29, 2026
- Steelcase Series 1 cut sheet (Item #25-0000121 02/25) ↗Checked Sep 29, 2026
- Steelcase Series 1 product page (steelcase.com) ↗Checked Sep 29, 2026
- US Steelcase Store (price) ↗Checked Sep 29, 2026
SIHOO M56CSteelcase Series 1
- Price
- $184.99$549 – $750
- Seat depth
- 17.1 in (≈ 43.4 cm)15.5"D to 17.75"D (functional seat depth)
- Load capacity
- 300 lb (≈ 136 kg)400 lb (181.4 kg); 300 lb (136.1 kg)
- Recline
- Maximum tilt angle of 125° (reclining lock with 1 position)Weight-activated synchro tilt; comfort dial with upright back lock, boost setting and weight-activated full recline
- Arms
- Armrests adjustable up and down4D arms (standard), height-adjustable arms or armless
- Headrest
- Headrest moves up and down and tiltsOptional headrest; adjusts 3.25" vertically
- Lumbar support
- Ultra-wide dynamic lumbar support: a flexible elastic plate that moves with the backrest (no manual adjustment listed)Adjustable lumbar is standard; fixed lumbar is available (3D Microknit Back only)
- Warranty
- 3 yearsLimited Lifetime Warranty; 12-year, multi-shift, 24/7 parts and labor
Questions
Which is cheaper, the SIHOO M56C or the Steelcase Series 1?
The SIHOO M56C is cheaper to start: $184.99 versus $549 for the Steelcase Series 1 at the brand stores (Oct 2026).
Which has a headrest?
Both: the SIHOO M56C as standard and the Steelcase Series 1 as an option.




