Humanscale Trea Guest Chair

$510.00 Sale Save $329.00
Seat Fabric Parma Red
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*Ships in: 1–4 weeks depending on your selected options.

Humanscale Trea Guest Chair is a modern commercial guest/conference chair offered in 4-leg (glides/casters), cantilever (glides), and 4-star (glides/casters) configurations.

Trea is the rare guest chair that doesn’t look like “extra seating.” It’s crisp, modern, and lightweight in all the right ways—perfect for conference rooms, meeting spaces, reception areas, and collaboration zones where you want the room to feel designed (not just furnished).

This page is for the Trea Guest Chair family, which includes:
4-Leg guest chair (glides or casters)
Cantilever guest chair (glides only)
4-Star guest chair (glides or casters)

We’re keeping the online version clean and easy to order. If you need add-ons like arms, seat/back pads, specialty glides/casters, or expanded finish options, contact KCOD and we’ll spec it correctly.

Key Features

• Three guest chair bases to match the room’s vibe and function (4-leg, cantilever, 4-star)
• Mobile or stationary options depending on base (casters available on 4-leg and 4-star)
• Minimal, design-forward silhouette that works in modern offices
• Great for conference rooms, touchdown spaces, reception, and collaborative areas
• Commercial-grade build designed for real daily use

Specifications

• Brand: Humanscale
• Product Type: Guest / conference / collaboration chair (multiple base styles)
• Base Styles Offered: 4-Leg, Cantilever, 4-Star
• Mobility Options: Glides or Casters (varies by base; cantilever is glides only)
• Best Use: Conference rooms, meeting spaces, reception, lounge-adjacent collaboration areas

Seat Depth:
• 18.5 in (470 mm)

Seat Height:
• Four-Leg: 18.38 in (465 mm)
• Cantilever: 18.38 in (465 mm)
• Four-Star: 18.25 in (463 mm)

Seat Width:
• 20.27 in (515 mm)

Backrest Height:
• 15.75 in (400 mm)

Backrest Width:
• 22 in (560 mm)

Overall Height:
• Four-Leg: 32 in (813 mm)
• Cantilever: 32 in (813 mm)
• Four-Star: 31.8 in (811 mm)

Base Diameter:
• Four-Leg: 28.5 in (724 mm)
• Cantilever: 26 in (660 mm)
• Four-Star: 29 in (737 mm)

Chair Weight:
• Four-Leg: 20 lbs (9 kg)
• Cantilever: 21.75 lbs (9.9 kg)
• Four-Star: 20.5 lbs (9.3 kg)

Recline:
• 12° Solid-State Recline (no adjustments required)

Construction:
• Molded back and seat shells
• White shell standard
• Optional upholstered seat pad (Corde 4, Gingko, Fourtis, Reflect)

Configured Model Details

  • Shell Finish: White molded performance shell
  • Seat Pad Options: Corde 4 textiles (Black, Peacock, Parma Red) or no seat pad
  • Base Options: Four-leg guest, cantilever guest, four-star task, or stool with foot ring
  • Casters/Glides: Available based on base type
  • Warranty: 15-year commercial use

Recommended Configurations

Most customers choose:

  • Four-leg or four-star base in White
  • Corde 4 upholstered seat pad (Black or Peacock)
  • Standard glides (guest/task environments)
  • Foot-ring base for café and counter-height seating

These combinations offer the best balance of comfort, durability, and cohesive visual design.

Best For

  • Conference rooms and collaborative meeting spaces
  • Guest seating in private offices or open-plan environments
  • Training rooms, cafés, and multifunctional spaces
  • Modern home offices needing flexible, design-forward seating
  • Organizations using uniform, high-performance interior standards

Who Should NOT Choose the Trea Chair

Trea may not be ideal for users who need long-duration ergonomic task seating with full recline depth or advanced adjustability—those users may prefer the Humanscale Freedom or Liberty chairs.

Why Professionals Choose the Trea Chair

Professionals choose Trea for its elegant simplicity, effortless movement, and architectural design language that scales seamlessly across an entire workspace. The chair’s solid-state recline keeps users supported through natural shifts in posture, while its sculpted shell and optional seat pad deliver comfort that feels tailored without requiring adjustment.

As a unified seating family, Trea allows designers and organizations to maintain a consistent aesthetic from private offices to cafés, training rooms, lounges, and collaborative areas. Its durability, versatility, and award-winning design make it a trusted choice for commercial, hospitality, educational, and hybrid work environments.

Trea vs. Freedom vs. Liberty

Trea Chair:
Best for multipurpose settings, short-to-medium duration seating, and design-forward environments needing consistent styling across multiple spaces.

Freedom Chair:
Premium ergonomic task seating with automatic recline, sculpted cushions, and optional headrest—ideal for long-duration work.

Liberty Chair:
Mesh-based task seating with Form-Sensing Mesh and exceptional breathability—ideal for shared desks, hybrid spaces, and lightweight task work.

See all Humanscale options →

Your Trusted Humanscale Dealer in Kansas City

Kansas City Office Design is an authorized Humanscale dealer offering full product expertise, finish guidance, commercial warranty support, and turnkey project assistance. We support companies throughout Overland Park, Olathe, Lee’s Summit, Liberty, North Kansas City, and the greater Midwest.

Complete Your Setup

About Humanscale

Humanscale is a global leader in ergonomic workplace solutions known for intuitive, high-performance seating and sustainability-driven engineering. The Trea Chair embodies their commitment to comfort, movement, and long-term durability.

Local Support & Installation

We provide white-glove delivery and installation throughout the Kansas City metro. Our team ensures your Trea chairs are properly specified, finished, and integrated into your workspace.

Elevate comfort, movement, and visual consistency with the Humanscale Trea Chair—modern multipurpose seating designed for forward-thinking work environments.

Humanscale Trea Chair Warranty

Humanscale provides a 15-year warranty on the Trea Chair’s structural and mechanical components, covering the solid-state recline mechanism, molded shell, base, and internal hardware. This ensures long-term performance in commercial offices, conference rooms, cafés, and multipurpose environments.

The Trea Chair’s upholstery, foam seat pad (if selected), and arm pads (if applicable) are covered under a 5-year materials warranty, consistent with all Humanscale seating.

What’s Covered

  • 15 Years
    - Molded shell structure
    - Solid-state recline mechanism
    - Four-leg, cantilever, task or stool base
    - Internal movement components
    - Structural hardware and support frame
  • 5 Years
    - Seat pad upholstery (Corde 4 or other textiles if specified)
    - Foam seat pad
    - Arm pads (if applicable)
    - Casters or glides

Not Covered

  • Normal wear and tear
  • Damage caused by misuse, neglect, or improper installation
  • Transit or handling damage after delivery
  • Modifications or repairs by non-authorized personnel
  • Use outside Humanscale’s installation and operating guidelines

Ships in: 1–4 weeks depending on your selected options.

Every item is made to order based on your configuration and ships directly from the manufacturer. Because of this custom production process, this product is final sale once the order is placed.

We currently cannot ship to Alaska, Hawaii, Puerto Rico, or P.O. Boxes.

Shipping Method (Chairs + Small Items)
Orders of 1–2 chairs typically ship via standard parcel (UPS/FedEx). Orders of 3+ chairs typically ship via LTL freight.

Shipping Method (Desks, Tables + Large Items)
Desks, tables, and larger/heavier items typically ship via LTL freight.

Freight Delivery (LTL) Expectations
Freight deliveries are curbside. An adult must be present to receive the delivery and assist with unloading. Liftgate, call-ahead, and inside delivery aren’t included unless requested (and may add cost).

Delivery Timing
Delivery timelines may vary based on the items in your order. For the most accurate estimate, please refer to the shipping details shown at checkout.

Residential + Limited Access Deliveries
If your delivery location is residential or doesn’t have a dock/forklift, we’ll reach out to confirm the best delivery method. If needed, we can arrange liftgate or inside delivery for an additional charge.

Kansas City Area
For local Kansas City customers, white-glove delivery and installation are available on request.

Frequently Asked Questions

The Trea Chair is backed by a 5–15 year warranty based on configuration, covering commercial use.

WHAT PEOPLE LOVE ABOUT IT

“Looks clean and modern—doesn’t clutter the room.”

“Cantilever base makes the space feel more architectural.”

“4-star swivel is perfect for conference rooms.”

“Easy to spec across multiple rooms.”