What bench height does the A3 suit?

The A3 is a desk-height chair. Its seat adjusts from 460mm to 600mm, which suits desk-height workstations and offices. If you’re not sure, send us your bench height and we’ll confirm the right model.

What is the weight capacity of the A3?

The A3 is fitted with a 20-stone gas strut, which is approximately 127 kg.

What is the A3, and where is it best used?

The A3 is an operator office chair upholstered in Xtreme Fabric (100% recycled) or wipe-clean Vinyl, with a high-back backrest and 2-lever seat-height and back-rake adjustment. It suits offices, control rooms and desk-based workstations alongside the lab.

Can I have feet or castors on the A3?

The A3 comes with standard castors as standard. Lock on/off castors are available for a price uplift. Soft-tyre castors are recommended for hard or vinyl flooring; please also consider the safety requirements of your working environment when choosing castors.

What guarantee and delivery apply to the A3?

UK mainland delivery is included in the price. Delivery to the Scottish Highlands and Northern Ireland is quoted on request. Every chair comes with a 5-year guarantee against normal wear and tear from the date of delivery, used under normal conditions during a conventional working day. In a shift or 24/7 working environment the guarantee is 2 years from the date of delivery. Purchase orders accepted from schools, colleges, universities, NHS trusts, government organisations and registered businesses. VAT invoice supplied. On finance systems we may appear as Mark Finn Lab Furniture or Lab Tables.

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High-Back Operator Chair for Labs (A3)

Sale price: £191.18
Regular price
Regular price: £191.18
Unit price: per

-0%

Not sure of the height? See the bench height guide →

Price excludes VAT. VAT invoice supplied on request. UK mainland delivery included.

Product variants

✔ Purchase orders accepted
✔ VAT invoice supplied
✔ 5 year guarantees
✔ Same-day quote response

We may be set up on your finance system as Mark Finn Lab Furniture or Lab Tables.

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Specifications

Model number	A3
Chair type	High-back operator office chair
Seat dimensions	520 mm wide × 520 mm deep
Overall height	1000–1130 mm
Seat height adjustment	460–600 mm
Base dimensions	620 × 620 mm
Weight capacity	20 stone / 127 kg
Gas lift	20-stone-rated gas strut
Seat material	Xtreme Fabric (100% recycled) or Vinyl
Base options	Standard castors as standard; lock on/off castors incur a price uplift
Mechanism	2-lever seat-height and back-rake adjustment
Guarantee	5 years (2 years in shift / 24-7 use)
Delivery	UK mainland included. Scottish Highlands & Northern Ireland on request.

Description

The A3 is a high-back operator chair for the seated areas of a lab — the taller-backed partner to the A1, for write-up desks, reporting stations and lab offices where staff want fuller back support through the day. Purchased over 1,196 times to date.

Specify a high back where staff sit at a standard desk for most of the day. For a medium back, see the A1; for a 900 mm standing bench you need a bench-height lab chair instead — the lab chair height guide confirms which class fits.

Seat materials

Two options, both included in the price. Xtreme Fabric (100% recycled) is the more comfortable choice for longer seated spells. Vinyl wipes clean and suits shared stations and busier benches. See the full colour and materials range.

Castors

Supplied with standard castors. Soft-tyre castors are recommended for shiny or hard floors. Lock on/off castors are available at a price uplift where the chair needs to stay in position.

Accessories

Available to order with a synchro mechanism (seat and back move together for long seated work), a seat slide (adjusts seat depth for taller or shorter users), adjustable arms, ring arms (better where fixed arms would foul the bench), lumbar support or seat tilt. Priced individually — see the accessories page or ask on your quote.

Who buys from us

The A3 is supplied to UK testing and scientific organisations including Socotec and Cefas. UK Lab Chairs has supplied laboratory and technical seating since 1986 to the University of Oxford, Dyson, Moderna and Guy’s & St Thomas’ NHS.

Ordering

Purchase orders accepted, VAT invoice supplied. Volume pricing from 4 units. Delivery included to mainland Britain. UK support and spares available — we have been supplying laboratory and technical seating since 1986.

Frequently Asked Questions

What bench height does the A3 suit?: The A3 is a desk-height chair. Its seat adjusts from 460mm to 600mm, which suits desk-height workstations and offices. If you’re not sure, send us your bench height and we’ll confirm the right model.
What is the weight capacity of the A3?: The A3 is fitted with a 20-stone gas strut, which is approximately 127 kg.
What is the A3, and where is it best used?: The A3 is an operator office chair upholstered in Xtreme Fabric (100% recycled) or wipe-clean Vinyl, with a high-back backrest and 2-lever seat-height and back-rake adjustment. It suits offices, control rooms and desk-based workstations alongside the lab.
Can I have feet or castors on the A3?: The A3 comes with standard castors as standard. Lock on/off castors are available for a price uplift. Soft-tyre castors are recommended for hard or vinyl flooring; please also consider the safety requirements of your working environment when choosing castors.
What guarantee and delivery apply to the A3?: UK mainland delivery is included in the price. Delivery to the Scottish Highlands and Northern Ireland is quoted on request. Every chair comes with a 5-year guarantee against normal wear and tear from the date of delivery, used under normal conditions during a conventional working day. In a shift or 24/7 working environment the guarantee is 2 years from the date of delivery. Purchase orders accepted from schools, colleges, universities, NHS trusts, government organisations and registered businesses. VAT invoice supplied. On finance systems we may appear as Mark Finn Lab Furniture or Lab Tables.