Humanscale Diffrient Occasional Multipurpose Side Chair

The Diffrient Occasional Multipurpose Side Chair delivers more ergonomic seating to offices everywhere

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Communal meeting spaces deserve supportive seating, too. With the Humanscale Diffrient Occasional Multipurpose Side Chair in your corner, you can enjoy more comfortable meetings with one quick seating switch up.

Sit happy while you brainstorm and collaborate thanks to the chair's Form-Sensing Mesh Technology, which provides automatic lumbar support for different types of users. The chair's reliable, linear backrest is adaptive to different sitters' body types, so you can be sure employees and guests alike will have a supremely supportive guest seating experience with the Diffrient Occasional Multipurpose Side Chair.

These chairs are stackable up to 5 chairs, so storing them is easy when the meeting is over. This is shockingly supportive side seating at its finest. This is the Humanscale Diffrient Occasional Multipurpose Side Chair.


  • Stackable side chair suits a variety of office environments
  • Chair responds and adapts to the contours of your body
  • Strong, linear backrest in constructed out of non-stretch mesh
  • Form-Sensing Mesh Technology delivers automatic lumbar support
  • Cantilever base with additional flex in the frame for unmatched comfort
  • Durable urethane arms resist damage, even when moved and stacked
  • Made with safe, high-quality, long-lasting materials

The Design Story

Neils Diffrient drew his inspiration of design from tailors, who use a three-dimensional approach when designing men's clothing. Designed with the perfect fit in mind, the Occasional mesh chair has a back that automatically fits the user. A keen eye on detail, each step in its creation was carefully considered. It has functionality, as well as beautiful design, and the welded joints are smooth and clean, appealing to the eyes. This resulted in raising the standard for multi-use seating.

"I keep thinking, 'how much simpler can this be?' and this was the end result."

Niels Diffrient, Designer


Overall dimensions 23.23" W x 21.19" D x 36.68" H
Weight 21.5 lbs
Weight capacity 300 lbs
Warranty Textiles: 5 years
All other components: 15 years





The Diffrient Occasional Chair is available in three models to match Humanscale's existing lineup of Diffrient task chairs: Liberty, Smart, or World. The backrest of each Occasional Chair is styled to match the Diffrient lineup of task chairs to create a cohesive look for your office. An Occasional Chair is a great choice for guest or conference room seating.


Frame Color

The frame of the Humanscale Diffrient Occasional Chair is available in multiple colors. If you order the Liberty model, choose between a black frame with black trim, a silver frame with gray trim, or a Chrome 3 frame with black or gray trim. The Diffrient Smart Occasional Chair is available in the following color choices: a black frame with black trim, a silver frame with dark gray trim, or a Chrome 3 frame with black or dark gray trim. The World model is only available with a black frame and black trim or a silver frame and gray trim.


Backrest Mesh

The backrest of the Humanscale Diffrient Occasional 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

Fourtis - Grade 1

Inspired by the Latin word fortis, meaning strong, this fabric is the ultimate ratio of durability and flexibility thanks to a unique weave of two-blended colors, and offering a four-way stretch.

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.

Ticino Leather - Grade 1

Ticino is a semi-aniline dyed leather available in a variety of rich colors inspired by nature. It is a top, corrected grain leather to create a more natural aesthetic and ensure the leather remains as unique as the hide itself.

Corvara Leather - Grade 3

Corvara is a semi-aniline dyed leather that offers a smooth, silky feel and ultimate durability. It is a top, full grain leather that is embossed lightly for a consistent, uniform grain structure.



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


Humanscale Terms and Conditions

Due to manufacturer policy, this item cannot be returned once received nor canceled once ordered.
Please contact us if you have any questions about the Humanscale products we offer, or about the no return policy on Humanscale items.

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Warranty Policy

Visit Humanscale for the warranty policy for this particular product.

Return Policy

Humanscale products cannot be returned.

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