PK31™ sofa

PK31™ Chair and Sofa Series

The PK31™ series by Poul Kjærholm is a masterclass in balancing individuality and harmony. Designed as both freestanding pieces and as part of a complete system, each PK31™ chair or sofa retains its identity while seamlessly fitting into larger arrangements. Kjærholm’s pursuit of the ideal form is evident in the chair’s precise geometry: a cube of 76 cm on each side, with the seat height at the midpoint. Combining elegant luxury with uncompromising comfort, the PK31™ is available as a chair, two-seater, or three-seater sofa – all exclusively in leather with a matt chromed spring steel base.

What makes the PK31™ series special?

• Design heritage: Created by Poul Kjærholm, a pioneer of Danish modernism.

• Geometric perfection: The chair defines a 76 cm cube with exact proportions.

• Flexible system: Available as a chair, two-seater, and three-seater sofa with expandable units.

• Luxury materials: Upholstered exclusively in leather for timeless elegance.

• Refined base: Matt chromed spring steel base adds strength and sophistication.

• Comfort and style: Unites luxurious seating comfort with minimalist aesthetics.

A sofa series with timeless appeal
The PK31™ embodies Poul Kjærholm’s ability to design furniture that is both architectural and deeply human. Its modular flexibility makes it suitable for private homes, offices, or public lounges, while its sculptural precision ensures a striking presence in any space.

Specifications

• Brand: Fritz Hansen

• Designer: Poul Kjærholm

• Model: PK31™ Chair and Sofa Series

• Materials: Leather upholstery, matt chromed spring steel base

• Versions: Chair, two-seater sofa, three-seater sofa; extendable with additional units

Styling & Pairing
The PK31™ pairs elegantly with Poul Kjærholm’s PK62™ or PK63™ tables for a complete modernist lounge. Its leather finish and clean geometry make it equally at home in refined private interiors or professional spaces.

A timeless design for modern living
The PK31™ chair and sofa series represent Kjærholm’s quest for perfection – a modular system that balances comfort, geometry, and sculptural beauty, ensuring lasting appeal across generations.

FAQs
Who designed the PK31™ series?
It was designed by Poul Kjærholm.

What makes the design unique?
Its precise cube proportions and ability to function as both a standalone piece and part of a modular system.

What materials is it made from?
Each piece is upholstered in leather with a matt chromed spring steel base.

What versions are available?
It comes as a chair, two-seater, and three-seater sofa, with the option to add units.

Where does it work best?
The PK31™ fits seamlessly into living rooms, offices, and public lounges, offering both comfort and sculptural elegance.

Who produces it today?
The PK31™ series is produced by Fritz Hansen.