Built2Last Marathon Series

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A proven favorite, the Marathon Series was designed to provide the ultimate contour fit with integrated lumbar and thoracic spinal support, and extensive personal adjustments. This is the Built2Last flagship multipurpose task chair, the Marathon has been specifically engineered to support virtually all users between the 5th and 95th percentiles. Classic stitching details compliment the choice of six available seat sizes, with High Resiliency or Energy Absorbing foam options. The same care to stitching is applied to the sculpted back, which is available in two sizes. Choose the “fixed lumbar” option and your Marathon chair comes with an enhanced lumbar support that is soft, yet supportive.

BUILT2LAST™ mechanisms have been customized to ensure that the tilt ranges and back angles match perfectly with our proprietary J-Bar designs to achieve proper ergonomic range and seat to back relationships. Adjustable arm bracket mounts are welded directly to our controls to ensure their strength and exact location.

Call 503.643.3018 or email questions@harrisworksystems.com for a custom fitting and detailed quote.

***Shipping times and pricing depends on options selected***    

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Backrest Width: mid – 19½ high – 19½”

Backrest Height: mid – 19½” high – 22½”Seat Depth (REG): 20 ½”

Seat Width (REG): 20¼”

Seat Height Range: 16½” – 21¾”(#3 mechanism + GL135)

Weight: 46 lbs

Cube: 7.8 feet³C.O.M.

Fabric: 1¾ yards


  • Mid Back – height adjustable in ½” increments
  • Standard model ships without arms
  • Original (REG) seat pan with HR foam and an integrated seat depth adjuster
  • GL 135 – 5¼” stroke – gas lift
  • Black 24” five star nylon base
  • Black 26” five star nylon base included with LSP and XSP seat pan options
  • Twin wheel hooded carpet casters (CC)


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