



Reviewed for sustainabilityComosum Meter · Case 3.0 / 5Show the six category scores
Tanso Side Chair is made by Case. We review every brand we carry against published evidence in six categories; Case scores 3.0 out of 5 (18 of 30).
- Material 3 out of 5Solid oak, walnut, teak; no certificate
- Transportation 3 out of 5Mostly made in Asia; tables in Lithuania
- Manufacturing 3 out of 5Country of make stated for every product
- Labor 2 out of 5No supplier code of conduct published
- Energy 3 out of 5No factory energy data published
- Durability 4 out of 5Contract-rated; Cross table since 2006
Tanso Side Chair
Est. 2005 · London
Shipping: $54 flat · FREE on orders $1,500+
✓ 30-Day Returns · ✓ Warranty Included · Questions? Chat with a design specialist →

The maker · Est. 2005 · London, UK
Case
London-designed furniture by Royal Designers for Industry
Paul Newman founded Case in 2005. Matthew Hilton and Terence Woodgate, both Royal Designers for Industry, have designed for it since the first collection, and it reissues Robin Day's 1964 Forum sofa with the Robin and Lucienne Day Foundation.
- Design Guild Mark winners since 2008
- BIFMA-tested commercial seating
- Replaceable components on most pieces
DesignersMatthew Hilton · Terence Woodgate · Robin Day
Tanso Side Chair
At 26.5 pounds of solid Grade A teak, this side chair moves to wherever the meal is.
The lightest seat in David Irwin's Tanso series for Case Furniture strips outdoor dining back to essentials: clear structure, honest material, and a compact footprint designed to stack and store. It arrives fully assembled and works as readily indoors as out.
Materials
Grade A solid teak
Dimensions
21.2 in W × 20.3 in D × 31.4 in H; seat height 17.5 in; 26.5 lbs
Designer
David Irwin
Made by
Case Furniture, London
Warranty
2 years
Care
Wash seasonally with mild detergent and a soft brush; teak silvers naturally outdoors
Common Questions
Which Tanso tables does it pair with?
Both dining tables — the rectangular (in two sizes) and the round. Its 17.5-inch seat height matches their 28.7-inch table height for standard dining comfort.
Can I add a cushion?
Yes — an optional removable seat cushion (sold separately) adds comfort without changing the chair's clean silhouette; it secures in place with toggle buttons.
Does it need assembly or special care?
No assembly — it arrives ready to use. Care is a seasonal wash with mild detergent and a soft brush; avoid abrasive cleaners and solvents.
Shipping & Returns +
Country of Production +
Thailand
Dimensions +
Care Guide +
Case Sustainability Meter
Reviewed for sustainability by Comosum: Case scores 3.0 out of 5 (18 of 30) across six categories, from published evidence.
- MaterialSolid oak, walnut, teak; no certificate3 out of 5
- TransportationMostly made in Asia; tables in Lithuania3 out of 5
- ManufacturingCountry of make stated for every product3 out of 5
- LaborNo supplier code of conduct published2 out of 5
- EnergyNo factory energy data published3 out of 5
- DurabilityContract-rated; Cross table since 20064 out of 5
grade out of 5
Shipping and Returns
Shop with confidence. Learn more about our shipping process, delivery estimates, and hassle-free return policy.
Shipping Info
Flat-rate shipping from $10 by order total — your exact rate is shown above, next to the price. Orders over $1,500 ship FREE, freight and duties included. White Glove delivery is available at checkout on orders over $1,000 — $250 up to $1,500, $150 above it.
Returns
30-day returns in unused, original condition. Start a return at hello@comosum.co — we'll coordinate it with you.
Warranty
Every piece carries its manufacturer's warranty — typically 2 years or longer. We handle all claims for you at hello@comosum.co.

















