What bench height does the OF320 suit?

The OF320 is a desk-height chair. Its seat adjusts from 470mm 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 OF320?

The OF320 is fitted with a 20-stone gas strut, which is approximately 127 kg.

What is the OF320, and where is it best used?

The OF320 is an operator office chair upholstered in Xtreme Fabric (100% recycled), with a mesh 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 OF320?

The OF320 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 OF320?

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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Mesh-Back Office Chair for Labs (OF320)

Sale price: £379.60
Regular price
Regular price: £379.60
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	OF320
Chair type	Mesh-back office chair
Seat dimensions	475 mm wide × 450 mm deep
Overall height	1150–1270 mm
Seat height adjustment	470–600 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) only
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 OF320 is a mesh-back office chair for laboratory environments — a breathable, fully adjustable desk chair for the offices, data rooms and reporting stations attached to the lab. Purchased over 1,674 times to date.

Specify a mesh back where rooms run warm or staff sit all day. For an upholstered back, see the high-back A3 or medium-back A1; for bench work, a bench-height lab chair is the correct class — check the lab chair height guide.

Back and seat

A breathable mesh back keeps air moving through long seated sessions, over an upholstered seat. See the materials and colours page for options.

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.

Accessories

Available to order with a synchro mechanism (seat and back move together for long seated work), a seat slide (adjusts seat depth), adjustable arms, ring arms or seat tilt. Priced individually — see the accessories page or ask on your quote.

Who uses the OF320

Supplied to hospital and utility laboratories at Leicester Royal Infirmary and Wessex Water Services. UK Lab Chairs has supplied laboratory and technical seating since 1986 to the University of Oxford, Dyson, Moderna and McLaren Racing.

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 OF320 suit?: The OF320 is a desk-height chair. Its seat adjusts from 470mm 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 OF320?: The OF320 is fitted with a 20-stone gas strut, which is approximately 127 kg.
What is the OF320, and where is it best used?: The OF320 is an operator office chair upholstered in Xtreme Fabric (100% recycled), with a mesh 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 OF320?: The OF320 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 OF320?: 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.