Sterling Medium Back Draughtsman Chair | Infinite Lock | Height Adjustable Back & Arms

Sterling Medium Back Draughtsman Task Chair with Hi-Rise Kit

The Sterling is a versatile medium back draughtsman task chair featuring a hi-rise seat height range of 610–860mm — making it ideal for standing-height desks, lab benches, drawing boards, and counter-height workstations across the UK. With an infinite lock mechanism, permanent contact backrest, and height adjustable back, it offers genuine ergonomic flexibility for extended use.

Available in Black Fabric, Blue Fabric, Charcoal Fabric, and Black Bonded Leather as standard, with a wide range of bespoke seat fabric colours to order. Back colour can be matched or specified in black. Arms available as none, fixed loop, height adjustable, or height adjustable and folding — all removable.

Availability

• Black Fabric, Blue Fabric, Charcoal Fabric, Black Leather — in stock, available for immediate despatch across the UK
• Bespoke colours (Bergamot Cherry, Ginseng Chilli, Maringa Teal, Myrrh Green, Senna Yellow, Stevia Blue, Tabasco Orange, Tansy Purple and more) — made to order, approximately 2 weeks lead time

Key Features

• ✦ Gas Height Adjustment — hi-rise seat height range 610–860mm for elevated workstations
• ✦ Adjustable or Free Float Back — permanent contact backrest follows user movement
• ✦ Infinite Lock Mechanism — lock the backrest in any preferred recline position
• ✦ Tilt Tension Adjustment — personalise recline resistance to user weight
• ✦ Height Adjustable Backrest — position the back panel for optimal lumbar support
• ✦ Fixed Armrests — loop arms option for consistent everyday support (removable)
• ✦ Height Adjustable Armrests — height adjustable or height adjustable and folding arms available (removable)
• Upholstered in fabric or bonded leather
• Metal and plastic frame construction
• Maximum weight capacity: 125kg
• Recommended usage: up to 8 hours per day
• Self-assembly required

Specifications

• Overall dimensions: W600 × D600 × H1090mm
• Seat: W490 × D410mm, hi-rise height adjustable 610–860mm
• Back: W440 × H530–560mm (medium back)
• Arms: height adjustable 745–820mm (where included)
• Product weight: from 20.7kg

Guarantees

• Mechanical components: 3 years
• Fabric and foam: 1 year

Test Certifications

• ANSI/BIFMA X5.1-2017
• BS 7176 Low Hazard; EN 1021-1; EN 1021-2
• Foam: BS 5852 Ignition Source 5 (Crib 5); EN 1021-1; EN 1021-2
• Fabric: BS 7176 Low Hazard; EN 1021-1; EN 1021-2

Ideal For

Standing-height desks, laboratory benches, drawing boards, counter-height workstations, and elevated task environments across the UK. Suitable for multi-unit contract specification and single-seat procurement alike.