Side + Guest Chairs

Montara650 Seating 

by Coalesse
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    Infused with comfort and craft, the Montara650 collection’s sculpted seating pairs with simple pedestal tables, filling informal spaces with café-style character tailored the way you want it. Simple. Social. Refined.

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    The Coalesse Design Group collaborated with Spain’s Lievore Altherr Molina to create the refined Montara650 collection - classically casual infused with comfort and craft. Highly customizable, Montara650 fills informal spaces with café-style character. Warm and appealing, Montara650 evokes practical luxury at an affordable price point.

    • 4-leg chair available with loop arms or armless
    • Sled base chair available with cantilever arms or armless
    • Armless sled base stool in counter and bar height
    • Plywood shell in 5 new oak finishes
    • Refined upholstery options: upholstered seat, ¾ upholstery (chair only) or full upholstery
    • Frame available in 10 paint and Chrome finishes
    • Chairs stack up to 6 high

    For full details on Montara650 seating,


    Life Cycle
    LEED Contribution




    We believe the only way to provide the best office furniture solutions is to ensure they’re the best products for the environment. That’s why every step of the way – through design, manufacturing, delivery and product lifecycle – we consider the impact of our work on people and on the environment and uncover opportunities to make things better.

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    7 %

    Up to

    recycled content by weight

    70 %

    Up to

    recyclable by weight

    Life Cycle

    Life Cycle


    Up to 70% recyclable by weight, depending on the options selected

    Made of up to 7% recycled content


    This phase comprises all production and assembly processes taking place at Steelcase or at their suppliers and sub-suppliers.

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    This phase includes downstream transports. Lightweight and delivered stacked. Made in North America


    During the use phase of the product – the longest phase of the life cycle – no significant environmental impacts occur.

    LEED Contribution

    LEED Contribution

    Steelcase supports the U.S. Green Building Council’s LEED certification system with products that can contribute to LEED Building Design + Construction (BD&C), LEED Interior Design + Construction (ID&C), or LEED Operations + Maintenance (O&M) certification criteria.

    Since the USGBC and its certification partner, GBCI, evaluate each project individually, the role our products play in achieving LEED certification is unique to each project

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    • Recycled content
    • Materials reuse
    • Regional materials
    • Low-emitting materials
    • Interior life cycle impact reduction
    • Design for flexibility
    • Daylight and views
    • Sourcing of Raw Materials
    • Quality Views
    • Planning
    • Environmentally Preferable finishes and furnishings
    • Social equity in the supply chain



    Certifications can help you choose products that are environmentally sustainable and just right for your project. Montara650 Seating has achieved the following certifications:

    SCS Indoor Air Advantage Certified

    ANSI/BIFMA level Certified
    Level 2

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