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designed by Todd Bracher
The Red Dot-Award winning Trea teams a timeless, clean aesthetic with high-performance function. Created in collaboration with visionary designer Todd Bracher, Trea offers intuitive comfort by mimicking the instinctive recline of the human body and embracing the sitter in a supportive shell.


These best-selling configurations are also available for expedited delivery.

About Trea™

Trea can be adapted for both office and home interiors. The chair’s four-star, cantilever or four-leg bases are interchangeable, so Trea can be customized for different environments and uses while maintaining visual consistency throughout a space.


Trea is engineered with a unique solid state recline mechanism that offers the sitter 12 degrees of movement. The chair’s overall modular design makes it easy to upgrade and maintain each of its components, minimizing the environmental impact.

Ergonomic Comfort

Trea’s waterfall-edge seat reduces impact to the back of the knees. A contoured backrest gently pivots to follow the natural point of hip rotation, cradling the body’s curves for lumbar support. The sitter can move freely and comfortably, without adjusting any mechanisms or dials.


Inspired by simple, natural forms, the Trea chair features a sophisticated design that embodies versatility. Functionally flawless and aesthetically pure, Trea offers the most comfort with the least amount of effort, providing stylish support in any space.

Customer Reviews

We ordered a few for our home, perfect for dining room areas too!
Olivia S.     3 months ago

Design Story

“I wanted to design a multipurpose chair with a visual simplicity and unique recline mechanism that would allow it to be used anywhere and by anyone.”

Todd Bracher, Designer

As the line between home and office blurs, workplace design is increasingly informed by residential design. Visionary Designer Todd Bracher’s response to this new era is Trea. While creating this unique multipurpose chair, he investigated how nature had solved the problem of integrated articulation. He was inspired by the lobster shell: an exoskeleton that moves in harmony with the living organism it protects. By following the cues of this natural design, he arrived at a solution that perfectly responds to the human body’s desire to move and recline, without knobs, dials, and levers: a groundbreaking “solid state” recline mechanism that adapts seamlessly and intuitively to sitters of all sizes. The final product is a universal chair that speaks a design language at once modern and timeless.


Footprint 724mm (28.5”)
Chair Weight - Four-leg base 9kg (20 lbs.)
Chair Weight - Cantilever base 9.9kg (21.75 lbs.)
Chair Weight - Four-star base 9.3kg (20.5 lbs.)
Backrest Recline 12 degrees
User Weight 45.4kg - 136kg (100 lbs. - 300 lbs.)
User Height 152cm - 193cm (5’0”- 6’4”)
Warranty 15 years
Warranty - Fabric, Cushions & Arm Pads 5 years
Footprint 28.5” (724mm) 
Chair Weight - Four-leg base 20 lbs. (9kg) 
Chair Weight - Cantilever base 21.75 lbs. (9.9kg)
Chair Weight - Four-star base 20.5 lbs. (9.3kg) 
Backrest Recline 12 degrees
User Weight 100 lbs. - 300 lbs. (45.4kg - 136kg) 
User Height 5’0”- 6’4” (152cm - 193cm) 
Warranty 15 years 24/7
Warranty - Fabric, Cushions & Arm Pads 5 years

Environmental Story

Humanscale products are designed with a constant and genuine focus on their environmental impact at every stage of their development. For us, the best designs in the world achieve more with less, and sustainability is the natural result of this focus.

Made from highly durable parts, the Trea chair was built to last. Its solid state recline mechanism does not use an erodible metal spring, ensuring the chair will perform as well on day one as it will on day 1,000. Due to its robust construction, it will not need to be replaced frequently, thereby minimizing landfill and offering a comfortable sitting experience for many years.


Shell: White or Gray

Base Finishes: White Powder, Polished Aluminum (four-star base only)

Seat: Available with or without seat pad

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