Designed for professional environments that require elevated seating, this Medium Back Twin Lever Draughtsman Chair delivers ergonomic support, durability and everyday reliability. Ideal for workshops, laboratories, retail counters, studios, classrooms and standing-height desks.

Why you Choose this Chair

✔ Supports staff comfortably for 5–8 hour shifts
✔ Adjustable for multi-user environments
✔ Certified to recognised European seating standards
✔ Durable for commercial and industrial use
✔ Suitable for counters, labs and drafting tables

Key Features

• Twin lever mechanism for independent seat and back adjustment

• Posture-curved seat with waterfall front to reduce leg pressure

• Contoured backrest with integrated lumbar support

• Back height adjustment

• Back rake and tilt adjustment

• Robust gas lift seat height adjustment (490–800mm)

• Height-adjustable chrome foot ring (set anywhere on gas lift)

• Black 5-star base with glides

• Suitable for 5–8 hours recommended use

• 1 Year Warranty

Product Description

The Medium Back Twin Lever Task Operator Chair is designed to deliver ergonomic comfort, professional durability and reliable daily performance in busy office and commercial environments.

Our trusty twin lever task operator chair features a posture-curved seat with waterfall front, helping to reduce pressure on the backs of the legs and promote healthier sitting posture throughout the working day. An under-seat skirt provides a clean, professional finish while protecting internal components.

The contoured medium-height backrest is sculpted with integrated lumbar support, offering essential lower back stability for users working 5–8 hours per day.

Certified to BS EN 1335 Level 3, this chair meets recognised European standards for safety, strength and ergonomic performance — making it ideal for professional workplaces, education settings and shared office environments.

A robust gas lift ensures smooth and effortless seat height adjustment, allowing users to customise their seating position easily. The twin lever mechanism provides independent control of:

• Seat height

• Back height

• Back rake

• Back tilt

Finished with a durable black 5-star base, the chair offers reliable stability for everyday commercial use.

Product Specifications

• Fabric Options:

  • Black Fabric

  • Blue Fabric

  • Red Fabric

  • Green Fabric

  • Grey Fabric 

• Vinyl Option:

  • Black Vinyl (Easy-clean, wipeable surface – ideal for labs & healthcare)

• Seat Width: 470mm

• Seat Depth: 445mm

• Seat Height: 490–800mm

• Back Width: 450mm

• Back Height: 490–570mm

• Weight Capacity: 110kg

• Base Finish: Black/Chrome

• Usage: 5–8 Hours Recommended

• Warranty: 1 Year

Frequently Asked Questions (FAQ)

1. Is this chair suitable for all-day use?

It is recommended for 5–8 hours of daily use, making it ideal for standard commercial working shifts.

2. What is the maximum height of the seat?

The seat height adjusts from 490mm to 800mm, making it suitable for elevated workstations and drafting tables.

3. What is the difference between fabric and vinyl?

Fabric provides breathable comfort for office and classroom environments.
Black vinyl offers a wipe-clean, hygienic surface suitable for laboratories, healthcare and industrial settings.

4. Does the chair have lumbar support?

Yes. The backrest is contoured with integrated lumbar support to promote healthy posture.

5. Is the foot ring adjustable?

Yes. The chrome foot ring is height adjustable and can be positioned at any point on the gas lift for optimal leg support.

6. What standard is this chair certified to?

This chair is certified to BS EN 1335 Level 3, a recognised European office seating standard for strength, durability and ergonomic safety.

7. What is the weight capacity?

The maximum recommended user weight is 110kg.

8. Does it come with a warranty?

Yes. The chair includes a 1 Year Warranty.

9. Is this chair suitable for multiple users?

Yes. The adjustable seat height, back height and tilt controls make it suitable for shared work environments.

10. Does the base have castors?

This model comes with glides as standard. (Castor options may be available upon request.)