Architect Flemming Lassen was as noted for his furnishings as he was for his buildings, and he created bedroom furniture and other pieces specifically for the inviting interiors he brought to fruition. The Danish modernist is credited by many for his role in introducing his native country to functionalism, which prioritizes practicality over excessive ornamentation in design. Lassen is widely known for his comfortable, plush vintage sofas, lounge chairs and other seating, such as the overstuffed Tired Man armchair and Mingle sofa.
Lassen's mother and father were both painters. In the early 1900s, he and his brother — architect Mogens Lassen — began to attend boarding school where they befriended Arne Jacobsen, with whom Flemming would come to share an affinity for the principles of functionalism. Jacobsen became a leading light of Scandinavian modernism — his celebrated mid-century designs include the Swan chair and the Egg chair — and he and Flemming remained close throughout their lives, maintaining a strong personal relationship as well as a professional bond as like-minded colleagues.
Lassen and Jacobsen exchanged ideas and collaborated — the former shared his friend’s holistic approach to building projects, which is evidenced by Jacobsen’s design for the SAS Royal Hotel in Copenhagen. Jacobsen’s designs for the property encompassed everything from the architecture to interiors and furnishings. Together, Lassen and Jacobsen won an award at the “Architects Building and Housing Exhibition,” which was held at the Forum in Copenhagen in 1929. The duo was recognized for its “House of the Future,” a circular structure fitted with a then-revolutionary automatic garage door opener and windows that rolled up and down with a handle — just as they would in a car. The House of the Future has influenced Danish architecture to this day.
Flemming also often collaborated with his older brother Mogens, designing buildings and furniture alike. Mogens designed all kinds of tables and seating, and worked with the likes of Jacobsen, Finn Juhl and Ole Wanscher on various projects.
Flemming Lassen created the oak-and-sheepskin Tired Man armchair for The Copenhagen Cabinetmakers’ Guild Competition in 1935. Three years later, he designed the Mingle sofa. Both seating pieces are very popular with collectors today.
Find vintage Flemming Lassen furniture on 1stDibs.
1938 Flemming Lassen for Georg Kofoed Danish Lounge Chair in Original Mohair
By Georg Kofoed, Flemming Lassen
Located in Oakland, CA
Lounge chair by notable Danish architect and designer Flemming Lassen, handcrafted by cabinetmaker Georg Kofoed in 1938, Denmark. This classic piece features a button-tufted back, su...
Mohair, Oak
$10,200 / set
Flemming Lassen Ingeborg Danish Lounge Chairs
By Jacob Kjaer, Flemming Lassen
Located in Oakland, CA
Ingeborg lounge chairs originally designed in 1940 by Flemming Lassen and produced by Master carpenter Jakob Kjaer for The Copenhagen Cabinetmaker Guild Ex...
Fabric, Wood
Flemming Lassen The Tired Man Lounge Chair Sheepskin Moonlight for Audo
By Audo, Flemming Lassen
Located in New York, NY
Flemming Lassen designed the overstuffed easy chair, The Tired Man, for The Copenhagen Cabinetmakers’ Guild Competition in 1935. It is characterized by organic, bearlike shapes and t...
Sheepskin, Oak
The Tired Man Lounge Chair -Sheepskin Moonlight/Oak by Flemming Lassen for Audo
By Audo, Flemming Lassen
Located in Bayrut, Beirut Governorate
The Tired Man also known as "Den trætte mand" was launched at the Copenhagen Cabinetmakers’ Guild Exhibition in 1936 and has since become an icon of Danish design. The epitome of cra...
Brass
Pair of The Tired Man Lounge Chairs-Sheepskin Honey/Oak by Flemming Lassen, Audo
By Audo, Flemming Lassen
Located in Bayrut, Beirut Governorate
The Tired Man also known as "Den trætte mand" was launched at the Copenhagen Cabinetmakers’ Guild Exhibition in 1936 and has since become an icon of Danish design. The epitome of cra...
Brass
The Tired Man Lounge Chair -Sheepskin Honey/Oak by Flemming Lassen for Audo
By Flemming Lassen, Audo
Located in Bayrut, Beirut Governorate
The Tired Man also known as "Den trætte mand" was launched at the Copenhagen Cabinetmakers’ Guild Exhibition in 1936 and has since become an icon of Danish design. The epitome of cra...
Brass
Flemming Lassen Ingeborg Lounge Chair Sheepskin Moonlight Dark Oak for Audo
By Flemming Lassen, Audo
Located in New York, NY
Originally Ingeborg was designed in 1940 by Flemming Lassen. The chair was designed by Master carpenter Jakob Kjær, who manufactured Flemming Lassen's furniture for The Carpenters gu...
Sheepskin, Oak
Flemming Lassen Ingeborg Lounge Chair Sheepskin Sahara Dark Stained Oak for Audo
By Flemming Lassen, Audo
Located in New York, NY
Originally Ingeborg was designed in 1940 by Flemming Lassen. The chair was designed by Master carpenter Jakob Kjær, who manufactured Flemming Lassen's furniture for The Carpenters gu...
Sheepskin, Oak
Ingeborg Lounge Chair, Sheepskin M/ Dark Stained Oak, by Flemming Lassen, Audo
By Flemming Lassen, Audo
Located in Bayrut, Beirut Governorate
Named after the designer’s artist mother, Ingeborg Winding, the Ingeborg Lounge Chair from 1940 welcomes the sitter with open arms and an irresistibly ...
Sheepskin, Oak
Pair of The Tired Man Lounge Chair-Sheepskin Moonlight/Oak by Flemming Lassen
By Audo, Flemming Lassen
Located in Bayrut, Beirut Governorate
The Tired Man also known as "Den trætte mand" was launched at the Copenhagen Cabinetmakers’ Guild Exhibition in 1936 and has since become an icon of Danish design. The epitome of cra...
Brass
Set of Ingeborg Lounge Chair & Ottoman in Sheepskin Moonlight& Dark Stained Oak
By Audo, Flemming Lassen
Located in Bayrut, Beirut Governorate
Ingeborg Lounge Chair Named after the designer’s artist mother, Ingeborg Winding, the Ingeborg Lounge Chair from 1940 welcomes the sitter with open arms and an irresistibly charming ...
Sheepskin, Oak
Flemming Lassen Pair of Easy Chairs in Beige Sheepskin, 1940s
By Flemming Lassen, Jacob Kjaer
Located in Copenhagen, DK
Flemming Lassen, pair of easy chairs for master cabinetmaker Jacob Kjaer, Denmark. Tapering legs in stained ash and reupholstered in beige sheepskin. The model was presented at The ...
Sheepskin, Ash
Ingeborg Lounge Chair, Sheepskin M/ Natural Oak, by Flemming Lassen for Audo
By Audo, Flemming Lassen
Located in Bayrut, Beirut Governorate
Named after the designer’s artist mother, Ingeborg Winding, the Ingeborg Lounge Chair from 1940 welcomes the sitter with open arms and an irresistibly ...
Sheepskin, Oak
$4,200
H 29.5 in W 28 in D 29 in
1930-40's Danish Lounge Chairs with Ornate Legs Style of Georg Kofoed
Located in Bridgeport, CT
Beautiful very stylish Danish low lounge chair from the 1930-40's. We are unaware of the designer and maker for this chair but they are a bit in the style of famed maker, Georg Kofoe...
Beech, Wool
Flemming Lassen Style Danish Lambswool Sofa C. 1940's
By Flemming Lassen
Located in Norwalk, CT
A beautifully sculptural Danish sofa in the style of Flemming Lassen, dating to the 1940s and capturing the expressive, organic forms that helped define Scandinavian Modern design. C...
Wool, Beech
Vintage "Ingeborg" sofa by Flemming Lassen, Denmark, 1940s
By Flemming Lassen, Asko
Located in Östermalm, Stockholms län
Beautiful “Ingeborg” sofa by Flemming Lassen, with curvesome forms. Designed in 1940 and named after his mother, the artist Ingeborg Winding. Upholstered with caramel colored sheepsk...
Lambskin, Birch
Unavailable|$4,622
H 29.53 in W 29.53 in D 27.56 in
Vintage Danish 1930s Club Lounge Chair, Style of Fritz Hansen & Flemming Lassen
By Fritz Hansen, Flemming Lassen
Located in Store Heddinge, DK
Presenting a truly iconic piece of Danish modern history, this lounge chair conveys the concept of architectural presence in its highest form. The captivating form is a masterful ble...
Fabric, Wood, Beech
Lassen Style Lambswool Lounge Chair & Ottoman C. 1940s
By Flemming Lassen
Located in Norwalk, CT
Elegant Lassen-style lambswool lounge chair and ottoman, designed in the spirit of mid-century Scandinavian modernism. The generously upholstered chair features a sculptural, envelop...
Wool, Wood
George Kofoed, Lounge Chair, Fabric, Wood, Denmark, 1940s
Located in High Point, NC
A dark-stained wood and light pink bouclé fabric lounge chair designed and produced by George Kofoed, Denmark, 1940s. Seat Height (inches): 14.5” Arm Height (inches): 23.75" All i...
Fabric, Wood
$5,672 / item
H 30.32 in W 26.78 in D 31.5 in
Elegant Lounge Chair, Upholstered in Yellow Gold Pure Mohair
By Flemming Lassen, Viggo Boesen, Mogens Lassen, Fritz Hansen
Located in Lewes, East Sussex
An elegant modern lounge chair. Handmade in England. Beech frame, sprung seat and newly upholstered in a premium, soft, pure yellow / gold mohair fabric. This listing is for a si...
Alpaca, Beech, Oak
$10,805 / set
H 28.35 in W 36.23 in D 30.71 in
Armchairs in the Style of Flemming Lassen / Viggo Boesen, Pure Alpaca Upholstery
By Flemming Lassen, Viggo Boesen
Located in Lewes, East Sussex
A beautiful pair of armchairs, in the style of Flemming Lassen / Viggo Boesen, newly upholstered in a premium ivory / stone pure Alpaca fabric. Priced and sold as a pair together. Fa...
Alpaca, Wood
$10,805 / set
H 30.32 in W 26.78 in D 31.5 in
Elegant Pair of Lounge Chairs, Upholstered in Yellow Gold Pure Mohair
By Fritz Hansen, Flemming Lassen, Viggo Boesen, Mogens Lassen
Located in Lewes, East Sussex
An elegant pair of modern lounge chairs. Handmade in England. Beech frames, sprung seat and newly upholstered in a premium, soft, pure yellow gold mohair fabric. Fast shipping wo...
Alpaca, Beech, Oak
$25,710 / set
H 29.53 in W 28.35 in D 29.14 in
Pair of Danish Mid Century Ingeborg Armchairs by Flemming Lassen for Asko, 1950s
By Asko, Flemming Lassen
Located in Stockholm, SE
A rare and early Scandinavian mid century modern sculptural armchairs model "Ingeborg" in beech wood and the original wool upholstery designed by Flemming Lassen and produced by Asko...
Fabric, Beech
Vintage "Ingeborg" sofa by Flemming Lassen, Denmark, 1940s
By Flemming Lassen, Asko
Located in Östermalm, Stockholms län
Beautiful “Ingeborg” sofa by Flemming Lassen, with curvesome forms. Designed in 1940 and named after his mother, the artist Ingeborg Winding. Upholstered with caramel colored sheepsk...
Lambskin, Birch
$28,567 / set
H 29.53 in W 28.75 in D 29.53 in
Pair of Easy Chairs in Ash Legs with Velvet Mohair by Flemming Lassen, 1940's
By Flemming Lassen
Located in Limhamn, Skåne län
Pair of Easy Chairs in Ash Legs with Original Velvet Mohair Fabric by Flemming Lassen, 1940's Additional Information: Material: Ash legs with original velvet mohair fabric Style: Mi...
Ash, Velvet
Rare Pair of Flemming Lassen Highback Lounge Chairs Denmark 1940's
By Flemming Lassen
Located in Bridgeport, CT
Beautiful Flemming Lassen attributed high back lounge chair made, circa 1940. This iconic lounge chair is probably one of the most perfect high backs ever designed. Perfect statement...
Wool, Beech
Sold
H 40.16 in W 34.65 in D 32.68 in
Flemming Lassen My Own Lounge Chair Sheepskin Moonlight Walnut for Audo
By Audo, Flemming Lassen
Located in New York, NY
Flemming Lassen’s iconic armchair, originally designed in 1938, was first produced as a one-off piece. It was introduced at The Copenhagen Cabinetmakers’ Guild Exhibition, where its ...
Sheepskin, Walnut
Easy Chair designed by Flemming Lassen Denmark, 1950s
By Flemming Lassen
Located in Stockholm, SE
Easy Chair designed by Flemming Lassen Denmark, 1950s. Sheepskin and oak. H: 77 cm / 2' 6 3/8" D: 60 cm / 1' 11 5/8" W: 73 cm / 2' 4 3/4" SH: 44 cm / 1' 5 5/16"
Sheepskin, Oak
Original lounge chair by Flemming Lassen, Denmark.
By Flemming Lassen
Located in København K, DK
Original 1940s easy chair in green velvet. Similar to "den trætte mand" with original upholsery. Danish Cabinet maker Flemming Lassen, Denmark.
Velvet, Beech
Rare Flemming Lassen Rattan Easy Chair, 1940
By E.V.A. Nissen & Co. 1, Flemming Lassen
Located in Copenhagen, DK
Flemming Lassen rattan easy chair with a green cushion. Designed 1940, made and marked with metal plate by E.V.A Nissen, Denmark. Fine original condition with new cushion made as o...
Fabric, Cane, Rattan
Rare pair of loungers by Flemming Lassen, Denmark.
By Flemming Lassen
Located in København K, DK
Rare pair of easy chairs designed by Flemming Lassen. Produced by cabinetmarker A.J Iversen, Denmark. Reupholstered in sheepskin. Designed and prodiced in the 1940s, Denmark.
Sheepskin
Danish 1940s Flemming Lassen Attributed High Back Lounge Chair
By Flemming Lassen
Located in Bridgeport, CT
Beautiful Flemming Lassen attributed high back lounge chair made circa 1940. This iconic lounge chair is probably one of the most perfect high backs ever designed. Perfect statement ...
Wool, Beech
Flemming Lassen "Tired Man" Sheepskin Lounge Chair and Ottoman
By Flemming Lassen
Located in Oakland, CA
Tired Man lounge chair and ottoman designed by Flemming Lassen for the Copenhagen Cabinetmakers Guild Exhibition of 1935. This large, sculpted form lounge chair is a danish modern classic...
Brass
Flemming Lassen Lounge Chair
By Flemming Lassen
Located in New York, NY
Lounge chair attributed to Flemming Lassen. Upholstered in authentic beige sheepskin. Legs are walnut.
Sheepskin, Walnut
Sold
H 28.35 in W 22.45 in D 31.5 in
Flemming Lassen, Early Lounge Chair, Bamboo, Cane, E. V. A. Nissen & Co., 1940s
By E.V.A. Nissen & Co. 1, Flemming Lassen
Located in High Point, NC
An early example of Flemming Lassen's iconic Bamboo chair model 340. This example is lightly restored, near the original condition. Produced by E. V. A. Nissen & Co., Denmark. Bears ...
Bamboo, Cane, Rattan
Flemming Lassen High Back Lounge Chair in Lambs Wool Danish, Midcentury
By Mogens Lassen, Flemming Lassen, Viggo Boesen
Located in Bridgeport, CT
Beautiful Flemming Lassen attributed high back lounge chair in lamb’s wool made circa 1940s. This iconic ultra-elegant lounge chair is probably one of the most perfect high backs eve...
Wool, Beech
Sold
H 29.93 in W 30.71 in D 33.47 in
Flemming Lassen Easy Chairs by Cabinetmaker A.J Iversen in Denmark
By Flemming Lassen
Located in Limhamn, Skåne län
Rare pair of easy chairs designed by Flemming Lassen. Produced by cabinet marker A.J Iversen in Denmark.
Leather, Sheepskin, Beech