SIHOO M18 Ergonomic Office Chair with Dual-Adjustable Lumbar Support
Category: Chairs
Key specschecked 2026-10-17
- Lumbar support
- Lumbar support adjusts vertically and horizontally
- Armrest adjustment
- Adjustable armrests (up and down)
- Recline
- Maximum 126° recline angle
Where to buy
Specifications
Each value below was read from SIHOO's own pages (checked 2026-10-17); the Source column links to that page.
| Spec | Value | Source |
|---|---|---|
| Max load | 330 lbs | sihoo.com |
| Recline | Maximum 126° recline angle | sihoo.com |
| Lumbar support | Lumbar support adjusts vertically and horizontally | sihoo.com |
| Armrest adjustment | Adjustable armrests (up and down) | sihoo.com |
| Headrest adjustment | Moves 3.9" up and down and pivots 45° | sihoo.com |
| Seat depth | 17.91" | sihoo.com |
| Seat width | 20.08" max hip width | sihoo.com |
| Dimensions | 28"W x 27"D x 44"-51"H | sihoo.com |
| Weight | 37.1 lbs | sihoo.com |
| Materials | Polyester mesh fabric; steel, aluminum & nylon framing parts; polypropylene back/headrest framing; cushion chair padding | sihoo.com |
| Warranty | 3 years | sihoo.com |
How it compares in Chairs
A count of the checked models that state a comparable value, from the same values as the table above. It is not a score.
- Max load 330 lbs — Higher weight rating than 5 of 17 other checked models; level with 3
Related buyer guides
Compare alongside other category alternatives for specific use cases.
Looking for personalized gear matches?
Take our 4-question quiz to find equipment scored for your exact operating system and workflow.