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RFM Seating Trademark BT Big & Tall Ergonomic Task Chair

SKU: TRADEMARK 2500 - BT26 Task/BT28 Task
Custom Made
Your Price

Your Price

$788.00+
MSRP: $1,450.00+
Was: $1,450.00+
(You save $662.00 )
Condition:
New
Availability:
Customizable — Ships in 3–4 Weeks
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Heavy-duty ergonomic task chair with thoracic, kidney, and lumbar support, designed for Big & Tall users up to 400 lbs.

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Description

The Trademark BT Big & Tall Ergonomic Task Chair delivers advanced spinal support, heavy-duty performance, and refined upholstered styling, making it ideal for professional environments that demand comfort, durability, and posture control.

The Trademark series combines thoracic ridge support, kidney support, and lumbar shaping into one unified ergonomic back system that cradles the spine and promotes healthy posture throughout long workdays. This carefully engineered support structure allows the chair to adapt naturally to the body while maintaining firm, consistent stability.

Designed for versatility, the Trademark series is available in multiple back heights and seat sizes, allowing it to function as a task chair, conference chair, Big & Tall chair, multi-shift chair, or stool configuration. Its sleek upholstered styling makes it equally suited for executive offices, healthcare environments, education, and commercial workspaces.

The Trademark BT model is engineered to accommodate users up to 400 lbs with a reinforced base, heavy-duty casters, and precision control mechanisms. Whether paired with a matching side chair or used independently, the Trademark BT delivers reliable comfort and professional performance — all day long.

Key Features & Benefits

  • Advanced multi-function mechanism — ratchet back with heavy-duty infinite tilt lock (50-control) and extended easy-access cylinder paddle
  • Ratchet back height adjustment — lift back to desired position to lock automatically; lift fully to reset
  • Back angle adjustment — pull paddle up to free-float, push down to lock recline angle
  • Pneumatic seat height adjustment — lift paddle while seated to lower, lift while standing to raise
  • Synchro infinite seat angle — smooth rocking motion with 3° forward tilt capability
  • Infinite tilt lock screw system — precision screw paddle eliminates tilt slippage
  • Tension control knob — clockwise to increase resistance, counter-clockwise to decrease
  • Thoracic ridge, kidney, and lumbar support — triple-zone spinal contouring
  • Big & Tall rated to 400 lbs — heavy-duty base and casters
  • Multiple back sizes available — medium and manager high back options
  • Multiple seat sizes — flat and tractor seat choices
  • Commercial-grade upholstery
  • Optional air lumbar and articulating headrest upgrades
  • Designed for task, conference, and multi-shift use

 

 
Backrest Height
  • Mid-Back: 20"
  • High Back: 24"
Backrest Width 19"
Standard Seat size 24" W x 20" D (plus three more seat size options available)
Seat Height (Floor to Top of Seat) 18..5" to 22" (with 100 mm cylinder)
Upgrade Options
  • Air Lumbar Support
  • Articulating Headrest

Seat Fabric Colors:

About Meridian fabric - Proudly knit in North America, supporting our local communities. Teknit is our unique knitting process that produces dimensional form-fitting fabric covers and suspension parts that improve the ergonomics, comfort, and design.

Meridian Grade D - Click to see Meridian Grade D Fabric color swatches

About Brisa fabric - It looks and feels like Leather. Brisa® | Original - a handcrafted, revolutionary innovation – is the world’s first breathable performance fabric. Its breakthrough ventilation system elevates comfort and produces a stunning, softly textured aesthetic for a best-of-both-worlds experience. Also featuring unique sound absorption properties.

Brisa Grade G - Click to see Brisa Grade G Fabric color swatches

The colors you see on your computer monitor or mobile device should only be used as a guide and may not be absolute.

 
Model Trademark BT Big & Tall Ergonomic Task Chair
Color Options Multiple upholstery colors available
Fits Height: 5'2"–6'6"
Weight: ≤ 400 lbs
Seat Depth: 20"
Neck Support Optional articulating headrest upgrade
Seat Cushion 11-ply seat shell with molded polyurethane foam
Back Support Thoracic ridge, kidney support, and lumbar contouring
Mechanism Heavy-duty multi-function infinite tilt lock with ratchet back adjustment
Seat Height Range 19½" – 22¾" (100mm cylinder)
Base & Casters 27"–28" reinforced nylon base with 70mm heavy-duty casters
Safety Standard Meets CAL 117-2013 flammability requirements

Frequently Asked Questions

Q: What makes the Trademark BT different from standard task chairs?

A: The Trademark BT combines thoracic ridge, kidney, and lumbar support in one ergonomic back system and is rated for users up to 400 lbs.

Q: Is this chair suitable for Big & Tall users?

A: Yes. It is specifically engineered for Big & Tall users with a reinforced base, heavy-duty casters, and high-capacity structure.

Q: What type of tilt mechanism does it use?

A: It features a heavy-duty multi-function infinite tilt lock mechanism with ratchet back height control.

Q: Can the chair be customized?

A: Yes. You can select different back heights, seat sizes, arm styles, upholstery options, lumbar support, and headrest upgrades.

Q: Is this chair good for long workdays?

A: Absolutely. Its spinal support system and full adjustability are designed for extended daily sitting.

Q: What environments is the Trademark BT best for?

A: It is ideal for offices, healthcare, education, conference rooms, and multi-shift commercial environments.

Specification

The Trademark BT Big & Tall Ergonomic Task Chair delivers advanced spinal support, heavy-duty performance, and refined upholstered styling, making it ideal for professional environments that demand comfort, durability, and posture control.

The Trademark series combines thoracic ridge support, kidney support, and lumbar shaping into one unified ergonomic back system that cradles the spine and promotes healthy posture throughout long workdays. This carefully engineered support structure allows the chair to adapt naturally to the body while maintaining firm, consistent stability.

Designed for versatility, the Trademark series is available in multiple back heights and seat sizes, allowing it to function as a task chair, conference chair, Big & Tall chair, multi-shift chair, or stool configuration. Its sleek upholstered styling makes it equally suited for executive offices, healthcare environments, education, and commercial workspaces.

The Trademark BT model is engineered to accommodate users up to 400 lbs with a reinforced base, heavy-duty casters, and precision control mechanisms. Whether paired with a matching side chair or used independently, the Trademark BT delivers reliable comfort and professional performance — all day long.

Key Features & Benefits

  • Advanced multi-function mechanism — ratchet back with heavy-duty infinite tilt lock (50-control) and extended easy-access cylinder paddle
  • Ratchet back height adjustment — lift back to desired position to lock automatically; lift fully to reset
  • Back angle adjustment — pull paddle up to free-float, push down to lock recline angle
  • Pneumatic seat height adjustment — lift paddle while seated to lower, lift while standing to raise
  • Synchro infinite seat angle — smooth rocking motion with 3° forward tilt capability
  • Infinite tilt lock screw system — precision screw paddle eliminates tilt slippage
  • Tension control knob — clockwise to increase resistance, counter-clockwise to decrease
  • Thoracic ridge, kidney, and lumbar support — triple-zone spinal contouring
  • Big & Tall rated to 400 lbs — heavy-duty base and casters
  • Multiple back sizes available — medium and manager high back options
  • Multiple seat sizes — flat and tractor seat choices
  • Commercial-grade upholstery
  • Optional air lumbar and articulating headrest upgrades
  • Designed for task, conference, and multi-shift use

 

 
Backrest Height
  • Mid-Back: 20"
  • High Back: 24"
Backrest Width 19"
Standard Seat size 24" W x 20" D (plus three more seat size options available)
Seat Height (Floor to Top of Seat) 18..5" to 22" (with 100 mm cylinder)
Upgrade Options
  • Air Lumbar Support
  • Articulating Headrest

Seat Fabric Colors:

About Meridian fabric - Proudly knit in North America, supporting our local communities. Teknit is our unique knitting process that produces dimensional form-fitting fabric covers and suspension parts that improve the ergonomics, comfort, and design.

Meridian Grade D - Click to see Meridian Grade D Fabric color swatches

About Brisa fabric - It looks and feels like Leather. Brisa® | Original - a handcrafted, revolutionary innovation – is the world’s first breathable performance fabric. Its breakthrough ventilation system elevates comfort and produces a stunning, softly textured aesthetic for a best-of-both-worlds experience. Also featuring unique sound absorption properties.

Brisa Grade G - Click to see Brisa Grade G Fabric color swatches

The colors you see on your computer monitor or mobile device should only be used as a guide and may not be absolute.

 
Model Trademark BT Big & Tall Ergonomic Task Chair
Color Options Multiple upholstery colors available
Fits Height: 5'2"–6'6"
Weight: ≤ 400 lbs
Seat Depth: 20"
Neck Support Optional articulating headrest upgrade
Seat Cushion 11-ply seat shell with molded polyurethane foam
Back Support Thoracic ridge, kidney support, and lumbar contouring
Mechanism Heavy-duty multi-function infinite tilt lock with ratchet back adjustment
Seat Height Range 19½" – 22¾" (100mm cylinder)
Base & Casters 27"–28" reinforced nylon base with 70mm heavy-duty casters
Safety Standard Meets CAL 117-2013 flammability requirements

Frequently Asked Questions

Q: What makes the Trademark BT different from standard task chairs?

A: The Trademark BT combines thoracic ridge, kidney, and lumbar support in one ergonomic back system and is rated for users up to 400 lbs.

Q: Is this chair suitable for Big & Tall users?

A: Yes. It is specifically engineered for Big & Tall users with a reinforced base, heavy-duty casters, and high-capacity structure.

Q: What type of tilt mechanism does it use?

A: It features a heavy-duty multi-function infinite tilt lock mechanism with ratchet back height control.

Q: Can the chair be customized?

A: Yes. You can select different back heights, seat sizes, arm styles, upholstery options, lumbar support, and headrest upgrades.

Q: Is this chair good for long workdays?

A: Absolutely. Its spinal support system and full adjustability are designed for extended daily sitting.

Q: What environments is the Trademark BT best for?

A: It is ideal for offices, healthcare, education, conference rooms, and multi-shift commercial environments.

Warranty

All Big and Tall chairs: Lifetime warranty on cylinder, 7 years on all other parts.

Faq

The Trademark BT Big & Tall Ergonomic Task Chair delivers advanced spinal support, heavy-duty performance, and refined upholstered styling, making it ideal for professional environments that demand comfort, durability, and posture control.

The Trademark series combines thoracic ridge support, kidney support, and lumbar shaping into one unified ergonomic back system that cradles the spine and promotes healthy posture throughout long workdays. This carefully engineered support structure allows the chair to adapt naturally to the body while maintaining firm, consistent stability.

Designed for versatility, the Trademark series is available in multiple back heights and seat sizes, allowing it to function as a task chair, conference chair, Big & Tall chair, multi-shift chair, or stool configuration. Its sleek upholstered styling makes it equally suited for executive offices, healthcare environments, education, and commercial workspaces.

The Trademark BT model is engineered to accommodate users up to 400 lbs with a reinforced base, heavy-duty casters, and precision control mechanisms. Whether paired with a matching side chair or used independently, the Trademark BT delivers reliable comfort and professional performance — all day long.

Key Features & Benefits

  • Advanced multi-function mechanism — ratchet back with heavy-duty infinite tilt lock (50-control) and extended easy-access cylinder paddle
  • Ratchet back height adjustment — lift back to desired position to lock automatically; lift fully to reset
  • Back angle adjustment — pull paddle up to free-float, push down to lock recline angle
  • Pneumatic seat height adjustment — lift paddle while seated to lower, lift while standing to raise
  • Synchro infinite seat angle — smooth rocking motion with 3° forward tilt capability
  • Infinite tilt lock screw system — precision screw paddle eliminates tilt slippage
  • Tension control knob — clockwise to increase resistance, counter-clockwise to decrease
  • Thoracic ridge, kidney, and lumbar support — triple-zone spinal contouring
  • Big & Tall rated to 400 lbs — heavy-duty base and casters
  • Multiple back sizes available — medium and manager high back options
  • Multiple seat sizes — flat and tractor seat choices
  • Commercial-grade upholstery
  • Optional air lumbar and articulating headrest upgrades
  • Designed for task, conference, and multi-shift use

 

 
Backrest Height
  • Mid-Back: 20"
  • High Back: 24"
Backrest Width 19"
Standard Seat size 24" W x 20" D (plus three more seat size options available)
Seat Height (Floor to Top of Seat) 18..5" to 22" (with 100 mm cylinder)
Upgrade Options
  • Air Lumbar Support
  • Articulating Headrest

Seat Fabric Colors:

About Meridian fabric - Proudly knit in North America, supporting our local communities. Teknit is our unique knitting process that produces dimensional form-fitting fabric covers and suspension parts that improve the ergonomics, comfort, and design.

Meridian Grade D - Click to see Meridian Grade D Fabric color swatches

About Brisa fabric - It looks and feels like Leather. Brisa® | Original - a handcrafted, revolutionary innovation – is the world’s first breathable performance fabric. Its breakthrough ventilation system elevates comfort and produces a stunning, softly textured aesthetic for a best-of-both-worlds experience. Also featuring unique sound absorption properties.

Brisa Grade G - Click to see Brisa Grade G Fabric color swatches

The colors you see on your computer monitor or mobile device should only be used as a guide and may not be absolute.

 
Model Trademark BT Big & Tall Ergonomic Task Chair
Color Options Multiple upholstery colors available
Fits Height: 5'2"–6'6"
Weight: ≤ 400 lbs
Seat Depth: 20"
Neck Support Optional articulating headrest upgrade
Seat Cushion 11-ply seat shell with molded polyurethane foam
Back Support Thoracic ridge, kidney support, and lumbar contouring
Mechanism Heavy-duty multi-function infinite tilt lock with ratchet back adjustment
Seat Height Range 19½" – 22¾" (100mm cylinder)
Base & Casters 27"–28" reinforced nylon base with 70mm heavy-duty casters
Safety Standard Meets CAL 117-2013 flammability requirements

Frequently Asked Questions

Q: What makes the Trademark BT different from standard task chairs?

A: The Trademark BT combines thoracic ridge, kidney, and lumbar support in one ergonomic back system and is rated for users up to 400 lbs.

Q: Is this chair suitable for Big & Tall users?

A: Yes. It is specifically engineered for Big & Tall users with a reinforced base, heavy-duty casters, and high-capacity structure.

Q: What type of tilt mechanism does it use?

A: It features a heavy-duty multi-function infinite tilt lock mechanism with ratchet back height control.

Q: Can the chair be customized?

A: Yes. You can select different back heights, seat sizes, arm styles, upholstery options, lumbar support, and headrest upgrades.

Q: Is this chair good for long workdays?

A: Absolutely. Its spinal support system and full adjustability are designed for extended daily sitting.

Q: What environments is the Trademark BT best for?

A: It is ideal for offices, healthcare, education, conference rooms, and multi-shift commercial environments.

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