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Office Master 7878MX Maxwell Big & Tall 24-7 Intensive Use Task Chair

  • $691.92
  • Ships within 2-4 weeks

  • Customizations Total: $0.00

    Perfectly suited for users of large and extra- tall statures. 450 lbs max.

    The Office Master 7878MX Maxwell Intensive-Use Task Chair is constructed from heavy-duty components and wider-body supporting 24" seat cushions. This remarkable mid-high back chair provides a 450 lb. weight capacity and is 24/7 rated; Maxwell is built to endure! New slim-look design features a less intimidating look without sacrificing any support or comfort.

    Large 24'' wide seat features resilient high density foam combined with a 10 layer plywood support and a steel seat plate reinforcement. Mid-high 23" back supports taller users. The all-around extra heavy-duty components offer peace of mind and genuine support and comfort.

    7878MX Maxwell heavy-duty control mechanism includes ergonomic features such as seat depth adjustment (seat slider), rocking tilt and tilting backrest.

    Relatively slim, tapered backrest contour blends in with other seating, including Office Master’s PT and IUHD series chairs.

    Optional equipment available includes a wide variety of Arms, Cylinder, Casters, and Adjustable Lumbar available. See below for more detailed information.

    A wide variety of 5 fabric grades as well as leather available with hundreds of fabric/color options. See link to Fabric and Color catalog below:


    Chair Adjustments:

    NOTE: The above video demonstrates general adjustment capabilities which may vary depending on the model of the chair. The actual functions & appearance of your chair may differ from the video & illustration shown above. For a list of actual capabilities, please see the Features & Benefits list below or call 877-374-6872 for kind assistance. 

    Features & Benefits:

    • Rated for 24/7 Intensive-use
    • Easy back height adjustment
    • Pneumatic lift
    • Tilting backrest
    • Rocking tilt
    • Seat depth adjustment accommodates individual leg length
    • Tension knob adjusts seat to individual preference
    • Fabric panel back
    • Executive trim-back design
    • Dual-tone oversized casters
    • Optional Adjustable Lumbar:


    • Seat Height Range: 18" - 23"
    • Back Dimensions: 18" w x 23" h
    • Seat Dimensions: 24" w x 17" - 19.5" d
    • Overall Width: 28"
    • Overall Height: 42.5" - 50.5"
    • Weight Capacity: 450 lbs
    • 7 year Limited Warranty 


    Note: Arm height adjustment ranges shown in the pdf below are affected when the DCS Memory Foam seat option is added to your chair. Subtract 1.5" from what's shown when DCS seat is added. For example, an arm height range of 9" - 12" will be 7.5" - 10.5" when DCS seat is added (all measurements are approx.).




    Note: Seat height adjustment ranges shown below are affected when the DCS Memory Foam seat option is added to your chair. Add 1.5" to what is shown below when DCS seat is added. For example, a seat height range of 17" - 22" will be 18.5" - 23.5" when DCS seat is added (all measurements are approx.).

    • 5" Black Heavy Duty - Seat height range: 18" - 23"
    • 4" Black Heavy Duty - Seat height range: 17" - 21"
    • 6" Black Heavy Duty - Seat height range: 19" - 25"

      Seat Slider (standard):

      • SLD - Seat depth adjuster, for that perfect fit of back and seat.

      Fabric Panel Back (standard):

      • Matching fabric applied onto outer back shell (add'l charge for grade 5 Comfortknit fabric)

      • Scratch-resistant & extra-durable Ballistic Nylon applied onto outer backshell (add'l charge)


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