Steelcase Series®M | Office Side Chairs

Modular. Versatile. Quick to revamp. Built to last.

Steelcase Series® M is a family of office side chairs and conference chairs you can rely on — for today and tomorrow.

Modular Seating for Every Space

5 bases. Hard-working features. Over 120 possible combinations. Steelcase Series M complements the Series 1 and Series 2 task chairs with a multi-functional design that enriches any environment.

Choose a sleek shell or add upholstery. Opt for armrests or integrate writing tablets. There’s an option for every space, from meeting rooms and private offices to rejuvenation areas and classrooms.

With Series M, you can equip your entire workspace using a single family of chairs.

Contemporary Chairs for Evolving Needs

Steelcase Series M side chairs stand out with their circular design, which promotes long-term usability. Swap shells, upholstery, or bases anytime with minimal effort. Replace the parts that no longer serve your goals while keeping what works.

These chairs make it easy to refresh their look. Whether you’re planning a full workspace redesign or wish to switch from a collaborative chair to a visitor chair, they adapt to the evolving needs of a growing office.

They are built to last, so you can work smarter.

High-Performing Features for Modern Chairs

Thoughtfully crafted to live in harmony with the space it sits in, Steelcase Series M merges comfort with choice. Tailor your seating experience to match your preferred work styles, space requirements, or desired aesthetic — it’s all in the features you pick.

Assemble and Disassemble
Designed for quick assembly and disassembly, this chair is ready to welcome guests in less than 2 minutes — whether it’s the first time you’re assembling it or you’re swapping parts.

Stack and Unstack
4-leg chairs are stackable, pairing easy storage with quick access. Keep these chairs conveniently out of your way — they’ll sit within close reach if needed.

Upholster and Reupholster
Seat and back cushions are available for all Steelcase Series M chairs for extra comfort. Add, remove, or swap upholstery whenever you want — now or in the future.

Versatile Chairs for Modern Workspaces

With Steelcase Series M, there is a chair for every occasion. Enjoy infinite space planning opportunities with a modular seating family that pairs seamlessly with Series 1 and Series 2 to maintain a unified task and collaborative seating experience in your space.

Open Collaboration

The comfortable design of our collaborative chairs enhances both in-person and virtual interactions. They follow the natural curvature of the body, encouraging people to connect, share ideas, or brainstorm for a few minutes or a few hours in whatever workspace they find themselves in.

Office Rejuvenation

With a wide range of bases, shells, and accessories, Series M side chairs are an ideal choice for lounge areas, workcafés, and transitional spaces. People can take well-deserved breaks in an environment that looks and feels good.

Active Learning

Writing tablets, armrests, and castors — paired with the stackable option — empower a life of learning. Series M is perfectly suited to serve as classroom chairs in order to support both formal and informal activities, making them suitable for auditoriums, library spaces, training rooms, workshop areas, and more.

Private Meetings

The thoughtful design of Series M visitor chairs provides comfort and style for private offices. They help guests feel at ease, whether for brief discussions or longer meetings, ensuring every interaction is productive and welcoming.

Adaptable Design for Evolving Space

Built for longevity, adaptability, and circularity, Steelcase Series M is a sustainable seating solution designed to endure and support spaces that evolve over time. Its modular design is intentionally engineered to keep the product in use and out of the landfill.

• No glue or staples in back and seat upholstery allows for easy disassembly, reuse, and material recovery at end of use
• Recyclable materials support a circular lifecycle, ensuring components can be reintegrated responsibly
• Swappable parts, such as bases and seat shells, eliminate the need for a full chair replacement

Crafted with flexibility in mind, Series M adapts as spaces and needs change, extending product life while minimizing environmental impact.