OverviewModular side and conference chairs for a variety of workplace settings. Steelcase Series®M is a family of chairs designed for meeting rooms, private offices, classrooms and collaborative spaces, offering configurable shells, bases and upholstery to match spatial and programmatic requirements.
Key benefits & designSeries®M uses a circular, modular approach: shells, seat and back upholstery, and bases can be independently swapped to extend service life and adapt to changing needs. The configurable options support interior design coherence and operational flexibility for architects, facility managers and procurement teams.
Features & functionality- Modular construction: swappable shells, upholstery and bases for easy updates and extended product life
- Multiple base options (examples shown in product range): 4-Leg, 4-Star, 5-Star, Sled, Cantilever — supporting different use cases and floor types
- Over 120 possible combinations across bases, shells, cushions and accessories
- Fast assembly and disassembly: designed for quick part swaps (under 2 minutes for first-time assembly or part replacement)
- Stackable option: 4-leg chairs stack for compact storage and rapid room reconfiguration
- Upholster and reupholster: seat and back cushions are available and replaceable for comfort updates or aesthetic refresh
- Optional armrests, writing tablet and castors to support collaborative, classroom and meeting-room uses
- Designed for circularity: upholstery is removable without glue or staples to enable disassembly, reuse and material recovery
ApplicationsSuitable for meeting rooms, private offices, collaborative areas, workcafés, training rooms and classrooms. Configurable options (writing tablets, armrests, castors, stackability) allow the family to support active learning, flexible meeting layouts and office rejuvenation.
SustainabilityEngineered for longevity and circularity with recyclable materials, swappable components and upholstery designed for disassembly to reduce landfill and support material recovery initiatives.
Standard + Optional Elements- Standard: plastic shell (back and seat), glides
- Optional: armrests, writing tablet, castors, back cushion, seat cushion
Specifications- Denomination: Series M family of side and conference chairs
- Seat Height: 4-Leg, Sled, Cantilever, 4-Star: 435 mm; 5-Star: 400–520 mm
- Seat Depth: 480 mm
- Seat Width: 425 mm
- Back Height from Seat: 420 mm
- Armrest Height from Seat: 230 mm
- Plastic Shell (Back and Seat) colour examples: Seagull, Black
- Back Cushions: examples include Atlantic, 3D Microknit
- Seat Cushion options (examples): Era, Medley, Mica, Atlantic, Renewed Loop, Step, Step Melange
- Bases available: 4-Leg, 4-Star, 5-Star, Sled, Cantilever
- Assembly: designed for quick assembly and disassembly for serviceability and part replacement
- Stacking: 4-leg chairs are stackable for storage
- Designed for circularity: recyclable materials and upholstery removable without glue or staples
- Global availability (regions indicated on product page): Africa, Europe, Middle East