Inclass Unnia Armchair with Trestle Swivel Base

Inclass Unnia Armchair with Trestle Swivel Base

The Unnia Armchair with Trestle Swivel Base, created by British designer Simon Pengelly, has been produced by world renown Inclass to offer a wide variety of colours and finishes which can be combined across the seat and back where desired.

Unnia is a versatile and extensive collection of chairs with a unique mix and match concept of colours and finishes. In addition, the collection offers chairs with a range of bases and frames that increase possibilities for customisation and allow a broad spectrum of use in all kinds of spaces, settings and decorative styles. The result is essentially a collection of highly customisable chairs. Minimum order quantity of four chairs – any combination.

Inclass - Blue - B33 (NCS2010-R90B) swatch for Olson and Baker
Inclass - Green - V14 (NCS6030-G70Y) swatch for Olson and Baker
Inclass - Grey - M56 (NCS7005-Y80R) swatch for Olson and Baker
Inclass - White - WO1 swatch for Olson and Baker
Inclass - Yellow - Y42 (NC S2060-Y20R) swatch for Olson and Baker
SKU: I-INC-10321 Categories: , , , ,

Made for you in just six to eight weeks
Free shipping to UK

Brand: Inclass
Designer: Simon Pengelly

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Height: 80.5cm x Width: 56.5cm x Depth: 50cm

Seat Height: 46cm (Arm height: 65.5cm) x Seat Width: 47cm x Seat Depth: 43cm

Materials & Finishes
Plastic seat & backrest:

Composition: Polypropylene reinforced with fiberglass

Finishes: Available in twelve standard colours

Trestle swivel base:
The spokes are made of 18mm steel rod.

Finishes: Available in thermoset polyester powder coating in any of the colours
of the Inclass swatch cards or in chrome.

Glides: Standard plastic adjustable glides for floor protection are included.

Year of Design

Space Planning/Interior Design
Our experienced team of design consultants can help you in planning your dream space. From colour and upholstery advice on free standing pieces to installation and finish tips on fitted furniture. Furthermore to help you visualise your new space we’ll produce 3D models to demonstrate how our products can be best used in your living space. Send our space planning team a quick message here.

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Delivery & Installation
Our delivery and installation team carry a wealth of knowledge and know exactly how to handle high-end furniture. They realise the value and importance of each Olson and Baker customer, read more about your furniture’s delivery here.

Price Promise
We guarantee that you will get the best value for money with our promise on price with no compromise on quality or service. Seen it cheaper elsewhere? Send us a quick message here.

International Shipping
From Dubai to Tokyo, the US to Italy we supply high-end furniture and lighting to trade and private clients all over the world, planning the logistics around you. Contact us for more information.


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Contact details
Please get in touch if you have a query, you can contact us in a number of ways, either complete our online form or use any of the information below:

Order related enquires:

Olson and Baker | For Business related enquiries:

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Supplier related enquiries:

0114 348 8303
Non UK: +44 114 348 8303

Office hours
Monday 8:30am–5:30pm
Tuesday 8:30am–5:30pm
Wednesday 8:30am–5:30pm
Thursday 8:30am–5:30pm
Friday 8:30am–5:30pm
Saturday Closed
Sunday Closed

Simon Pengelly

Simon Pengelly

I started making furniture in my father’s workshop when I was eight, going on to win national competitions for cabinet making. The practical experience and an affinity with materials and processes, gained from an early age, are central to my design work and service.
Understanding materials and manufacturing techniques is fundamental to my approach, combined with a passionate desire to create accessible production furniture with ‘soul’.



Founded at the end of the 1990 in the Valencia region of Spain, Inclass is a dynamic company that designs and manufactures a varied collection of contemporary design furniture for residential, hospitality, office and other public spaces.

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