Wilkhahn AT vs SIHOO M18
Side by side from official specifications, sourced prices and User Insights. No written comparison exists for this pair yet.
Differences at a glance
Sources
- Wilkhahn AT / AT Mesh digital brochure (EN) ↗Checked Sep 29, 2026
- M18 Classic Ergonomischer Bürostuhl – SIHOO DE official store ↗Checked Oct 16, 2026
- Sihoo M18 Ergonomic Office Chair – Official US Sihoo Store ↗Checked Sep 29, 2026
- Wilkhahn Guarantee Policy (publication date January 1, 2024) ↗Checked Sep 29, 2026
- Wilkhahn Online Shop (Germany) (price) ↗Checked Sep 29, 2026
Wilkhahn ATSIHOO M18
- Price
- From €831$289.99 – $299.99
- Seat height
- 40–53 cm (15.7–20.9 in); 42–53 cm (16.5–20.9 in); 43–61 cm (16.9–24.0 in); 65–77 cm (25.6–30.3 in)44–54 cm
- Seat depth
- 43 cm (16.9 in); 39–45 cm (15.4–17.7 in)17.91 in (≈ 45.5 cm)
- Load capacity
- 45–140 kg (99–309 lb)330 lb (≈ 150 kg)
- Recline
- Seat tilt 12°, backrest up to 26°; optional 3D forward tilt up to 5°; sideways tilt up to 12°Maximum 126° recline angle
- Arms
- Optional armrests: 1D height-adjustable by 100 mm in ten positions; 3D adds 50 mm depth and 25 mm width; 4D also pivots 25°Adjustable armrests (Up and down)
- Headrest
- Optional upholstered headrest, height-adjustable by 6 cm in 6 positions, depth adjustable up to 5 cm; adds 15 to 25 cm to total heightHeadrest moves 3.9" up and down and pivots 45°
- Lumbar support
- Height-adjustable lumbar support, ten lockable positions, up to 60 mm; Optional lumbar support, height-adjustable by 6 cm in six positions, optional depth adjustment up to 1.5 cmLumbar support adjusts vertically and horizontally
- Warranty
- 5 years (star bases, seat and backrest frames and shells, mechanisms); 2 years (gas lifts, casters, glides, armrest function, fabrics, upholstery)3 years
Questions
Which has a headrest?
Both: the Wilkhahn AT as an option and the SIHOO M18 as standard.
What do owners mention most?
Back support for the Wilkhahn AT, and price and value for the SIHOO M18, based on review summaries.
Swap in a similar chair
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More comparisons
- Wilkhahn AT vs Herman Miller Aeron Load capacity: 45–140 kg on Wilkhahn AT; 300 / 350 / 400 lb on Herman Miller Aeron.
- SIHOO M18 vs Herman Miller Aeron Arms: Adjustable armrests on SIHOO M18; Arm height 7.5–11.5 in on Herman Miller Aeron.
- SIHOO M18 vs Ticova Ergonomic Office Chair Ticova and SIHOO M18 both offer mesh backs and cushioned seats.
- SIHOO M18 vs Branch Ergonomic Chair Arms: Adjustable armrests on SIHOO M18; 3D removable armrests on Branch Ergonomic Chair.
- SIHOO M18 vs FlexiSpot OC3 Arms: Adjustable armrests on SIHOO M18; 2D on FlexiSpot OC3.



