Humanscale Diffrient Smart Drafting Chair

Seat cushion is contoured to reduce pressure points
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When you're ready for a serious seating upgrade, the Humanscale Diffrient Smart Drafting Chair is up to the task of changing the way you sit forever.

This ergonomic drafting chair comes packed with form-sensing mesh technology in the back seat panel that forms to your body for the utmost in back support, and an intuitive recline mechanism that senses and shifts with your weight, delivering the ideal amount of lumbar support where you need it.

The Humanscale Diffrient Smart Drafting Chair comes standard with an 18" adjustable foot ring, or upgrade to a 21" model to provide ample support when at a drafting height.


  • Seat cushion is contoured to reduce pressure points
  • Tri-panel, nonstretch mesh back fits more than 95% of the population
  • Form-sensing mesh technology forms around your body's unique shape
  • Available with high performance arms that move laterally and side to side
  • Intuitive recline feature that adjusts to your body weight
  • Seat depth adjuster featuring waterfall seat edge design


Chair height 40" - 48" H
Adjustable armrest height 6" - 10" H
Seat height 16" - 21" H
Seat depth 16" - 19" D
Weight capacity 300 lbs

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Choose from a variety of arm options available on your Diffrient Smart Drafting Chair:

  • No armrests
  • Fixed height armrests with a durable Duron foam
  • Fixed height armrests with a durable Duron foam covered with upholstery to match your seat cushion
  • Height-adjustable armrests with a Duron arm pad
  • Height-adjustable armrests with a Duron arm pad upholstered to match your seat cushion
  • 4D adjustable armrests with a Duron arm pad
  • 4D adjustable armrests with a Duron arm pad with matching upholstery

Our recommendation: Most people will benefit from having adjustable arms


Frame Color

The frame of the Humanscale Diffrient Smart Drafting Chair is available in three colors:

  • Black frame with black trim (standard)
  • Dark Gray Frame with Brushed Aluminum Trim
  • Black Frame with Brushed Aluminum Trim

Back Mesh

The backrest of the Humanscale Diffrient Smart Drafting Chair is available in the following mesh styles. Please note that certain meshes may cause a longer lead time than others. To check lead time on a certain configuration, please give us a call at 1-800-531-3746 before placing your order.


Dash is one of the newest meshes available in the Humanscale line. It is characterized by its strength and durability.

Monofilament Stripe

The luminous quality of each individual monofilament strand creates a translucent effect, while also providing strength and durability.

Silver Check

This brilliant weave of monofilament strands and silver-coated yarns offers resiliency combined with a low abrasion factor.


Pinstripe offers a simple stripe pattern in a variety of enlivening colors.


Catena offers a unique pattern in a variety of modern colors.


Seat Fabric

Corde 4 - Grade 1

Constructed from cotton, Corde 4 includes a four-way stretch and a small, modular weave. The result is a dimensionally ribbed surface on the face of the fabric that remains soft to the touch.

Lotus - Grade 1

This four-way stretch textile is water repellant and easy to clean, making it an ideal textile for healthcare and hospitality environments. Its polyurethane finish with nylon backing boasts a soft texture while offering exceptional durability. It exceeds all standards for contract upholstery and healthcare tests.

Sensuede - Grade 3

Sensuede was developed to be the best and most luxurious engineered suede available. The faux suede's soft touch comes from the use of breathable and wrinkle resistant recycled microfibers that are finer than a human hair but are extra-strong, resulting in a very resilient fabric. This material also was selected because of its environmentally sensitive content and manufacturing process.

Bizon Leather - Grade 1

Bizon is a durable, water-resistant leather suitable for a wide range of applications. The combination of a special retannage and technically-advanced finishing process results in a leather that is not only water-resistant but also practical for applications that require a durable finish.

Cervo Leather - Grade 3

Cervo is chromium tanned and aniline dyed. The unique tannage approximates the rich luxurious suppleness of deer skin. The clarity and depth of the aniline dyes provide a distinct beauty enhancing all the natural characteristics. Cervo is thicker than the other naked leathers in our collection. Specialized milling adds additional character providing a soft pebble grain texture unmatched by any other leather in its class.


Box Stitching Color

Choose from a variety of different color box stitchings for your chair. This option is only available for leather upholstery.


Seat Height

The Humanscale Diffrient Smart Drafting Chair is available with an 18'' or 21'' footring.



The Humanscale Diffrient Smart Drafting Chair is available with your choice of standard casters or soft casters for hard floors.

Standard Hard Casters 2 1/2" double-wheeled for carpeted floors
Soft Casters 2 1/2" soft double-wheeled for hard floors


The Humandscale Diffrient Smart Drafting Chair can be ordered with either standard plastic components or CAL 133 compliant components.

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This product comes standard with a 15-year warranty.

Return Information

  • Return windows close 30 days after you receive your item.
  • You are responsible for obtaining a Return Merchandise Authorization, the cost of shipping, and potential restocking fees, if the item has been opened.
  • To start a return, or to view the full returns policy, click here.
Your Price
$1,049.00 List Price: $1,345.00* The list price is the same as the MSRP (Manufacturer's Suggested Retail Price). It may not necessarily be the price at which the product is sold.
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