Replica of Poul Kjærholm’s PK31 Matching PK31 3 Seater Sofa & PK61 Coffee Table Available in chic colours About PK31 Sofa The Danish designer’s trademark, slender steel frame ensures the sofa retains a light, airy feel; add the matching PK31 three-seat sofa & barely there PK61 coffee table. The story behind the PK31 Sofa Designed in 1958, Poul Kjærholm’s effortlessly chic PK31 sofa works in almost any setting. The gentle incline of its seat, combined with the perfectly judged height of its back, makes this a sofa that invites the sitter to relax while naturally supporting the spine.