With a passion for math and engineering, Kai Kristiansen has created high-quality wood furniture for decades. Beginning in the 1950s, his coffee tables, chairs, modular shelving and other furnishings were made in the style that would become internationally renowned as Danish modern and boasted clean lines, perfected functionality and exacting craftsmanship.
Born in Denmark, Kristiansen trained in cabinetmaking before studying with Kaare Klint, often cited as the “father of modern Danish design,” at the Royal Danish Academy of Fine Arts in Copenhagen. At just 26 years old, Kristiansen opened his own studio.
Kristiansen had his mid-century breakthrough in 1956 with the Chair #42, which he made with Schou Andersen. Unlike most other chairs at the time, Chair #42’s armrests, with their wealth of radical angles, were connected to the back rather than the front legs. This unconventional flourish makes the backrest appear as though it is floating in midair above the seat.
Kristiansen’s next innovation was a modular wall system in 1957 — three years ahead of Dieter Rams’s more famous 606 Universal Shelving System. Called the Reolsystem Wall Unit, produced by SB Feldballes Møbelfabrik, it’s also known as the FM Wall Unit as FM/Fornem Møbelkunst began producing it in the 1960s.
Kristiansen would go on to work with other leading Danish furniture manufacturers such as Magnus Olesen, Fritz Hansen and Vildbjerg Møbelfabrik, designing everything from chairs and desks to sideboards and cabinets, frequently in rosewood and teak. (The latter was a sought-after wood by Scandinavian modern designers.)
While many of Kristiansen’s timeless designs remain in production, such as his Paper Knife sofa, which was reintroduced by Miyazaki Chair Factory in 2008, and his 1950s Entré collection, which was relaunched with Great Dane Furniture in 2016, others are prized as vintage mid-century pieces.
Today, Kristiansen is still at work on new furniture with an expert eye to thoughtfully functional designs that are made to last.
Find a collection of vintage Kai Kristiansen furniture on 1stDibs.
Paper Knife Sofa by Kai Kristiansen for Magnus Olesen, Denmark, 1956
By Kai Kristiansen, Magnus Olesen
Located in Barcelona, ES
Two seater Paper Knife sofa designed in 1956 by Kai Kristiansen for Magnus Olesen, Denmark. Teak frame upholstered with new wool fabr...
Fabric, Teak
Cantilever Armchair Designed by Magnus Olesen, Denmark, 1975
By Rud Thygesen and Johnny Sorensen, Magnus Olesen
Located in Antwerp, BE
Vintage cantilever armchair designed by Rud Thygesen and Johnny Sorensen for Magnus Olesen, Labeled Made in Denmark. Curved laminated beech wood design with light grey- green upholst...
Upholstery, Beech, Plywood
$11,718Sale Price|20% Off
H 26.78 in W 84.26 in D 31.5 in
Vintage Fuchsia Sofa by Luigi Caccia Dominioni for Azucena
By Azucena, Luigi Caccia Dominioni
Located in Milano, IT
Gorgeous fabric sofa designed by Luigi Caccia Dominioni for the fine manufacturer Azucena Italia. The vintage sofa is made of brown, fuchsia and purple striped fabric, which creates a very colorful geometric effect. The lines are very hard and geometric, wonderfully eccentric. The frame is made of anodized aluminum, shiny silver, which connects to the spectacularly beautiful square, hollowed out feet. The cushions also act as square armrests, very colorful. The sofa comes from the Rome home of Luigi Caccia Dominioni. The colored sofa are ideal for furnishing eccentric and colorful living rooms.
Metal
"Le Stelle" Loveseat Sofa by Mario Bellini for B&B Italia
By Knoll, Mario Bellini, B&B Italia
Located in Los Angeles, CA
"Le Stelle" loveseat sofa by Mario Bellini for B&B Italia, Italy, circa 1970s. Newly reupholstered in white Knoll boucle, the sofa features angled arm rests and Bellini's signatu...
Bouclé
$4,850
H 28.75 in W 66.5 in D 23.75 in
Danish Midcentury Sofa with Legs and Accents in Teak by Georg Thams Denmark 1957
By Kurt Olsen
Located in Bridgeport, CT
Super cool and elegant sofa by Georg Thams for Vejen Polstermøbelfabrik. Designed and produced around 1957. Epitome of Danish 1950's style by one of the iconic designers. Solid and...
Wool, Teak
$4,566
H 28.75 in W 65.75 in D 32.29 in
1960s Kai Kristiansen Paper Knife 3-Seater Teak Sofa in Leather , Denmark
By Kai Kristiansen
Located in Praha, CZ
- Skelet in very good original condition - Leather pillows in good original conditions - Patinated leather
Leather, Teak
Danish Modern Sofa Loveseat
Located in Brooklyn, NY
This mid-century modern Danish sofa features clean lines and unique tapered legs. Scandinavian modern style adds a retro flare to any home or office space. Perfect two-seat sofa for ...
$3,600 / set
H 29.5 in W 26 in D 28 in
Pair of Kai Kristiansen Danish Modern Teak Magnus Olesen Lounge Armchairs
By Illum Wikkelsø, Magnus Olesen, Borge Jensen
Located in Chesterfield, NJ
Handsome pair of open arm lounge chairs, model KK161, designed by Kai Kristiansen and manufactured in Denmark by high-quality furniture maker, Magnus Olesen. These very comfortable c...
Fabric, Teak
Danish Modern Finn Juhl Sheepskin BO46 sofa, 1946
By Finn Juhl
Located in Uccle, BE
Sofa model BO46 by Finn Juhl for Bovirke, made in Denmark in 1946. Round beech legs. Reupholstered in sheepkin. Leather buttons. Excellent vintage condition. Early and important Finn...
Sheepskin, Beech
Grete Jalk Sofa JH180 Johannes Hansen, Denmark, 1955
By Grete Jalk, Johannes Hansen
Located in Roosendaal, Noord Brabant
Beautiful small Danish sofa or love seat, model JH180 designed by Grete Jalk and manufactured by Johannes Hansen, Denmark 1955. This beautiful shaped...
Leather, Oak
$8,539
H 27.56 in W 25.2 in D 27.56 in
Kai Kristiansen Paper Knife Vintage 1950s Rosewood Lounge Chair
By Magnus Olesen, Kai Kristiansen
Located in London, England
Kai Kristiansen - Paper Knife Chair, 1955 The Model 121 lounge chair is widely considered one of Kai Kristiansen's finest works from a long and celebrated career. The chair, later n...
Rosewood, Leather
$9,495
H 27.56 in W 25.2 in D 27.56 in
Kai Kristiansen Paper Knife Vintage 1950s Rosewood Lounge Chair
By Magnus Olesen, Kai Kristiansen
Located in London, England
Kai Kristiansen - Paper Knife Chair, 1955 The Model 121 lounge chair is widely considered one of Kai Kristiansen's finest works from a long and celebrated career. The chair, later n...
Wool, Rosewood
$35,000
H 30 in W 69 in D 35 in
Mogens Lassen Rare Scandinavian Modern Sofa in Ivory Sheepskin, Denmark, 1940s
By Mogens Lassen
Located in New York, NY
Designed by Mogens Lassen, this rare and exceptionally elegant Scandinavian Modern sofa is an iconic example of Danish design from the 1940s, distinguished by its sculptural silhouet...
Bouclé, Wood, Beech
Sold
H 27 in W 45.5 in D 28 in
Vintage Rosewood Loveseat or Settee by Kai Kristiansen for Magnus Olesen
By Magnus Olesen, Kai Kristiansen
Located in Pasadena, TX
Vintage mid century two seater by Kai Kristiansen for Magnus Olesen Beautiful rosewood frame with loose cushions in blue canvas uph...
Fabric, Rosewood
Kai Kristiansen Universe Seating Group
By Kai Kristiansen
Located in Dallas, TX
A three piece modular unit with solid rosewood frame and original leather upholstery. The table has an inset stone top. Designed by Kai Kristiansen.