What did you have in mind?
Bespoke: size, colour, finish
Write one line in the procurement sheet and it covers the fifth-percentile analyst and the ninety-fifth-percentile team lead: World LM is declared by Humanscale to fit 95% of the population — statures from 152 to 193 centimetres, weights from 45.4 to 181.4 kilograms. For an office that hires at scale, that range is the specification: no small-medium-large variants to stock, no fitting sessions, no chair swapped because the next occupant is taller. The recline calibrates itself on the sitter's weight, and the tri-panel mesh backrest shapes itself to each spine.
The programme stays administrable at volume: one construction of 78 components, seat in mesh or contoured foam, frame in Black or Gray, arms fixed, adjustable or omitted. Where the floor plan calls for more than desks, the same family answers with the Meeting version — its cylinder returns the seat to the set height — and a counter-height Stool with foot ring. La Mercanti supplies World LM to Indian offices as one ergonomic task chair specification that survives headcount growth.
Collection: World LM
Manufacturer: Humanscale
Design: Niels Diffrient
Origin: streamlined edition of the original World chair, keeping its tri-panel backrest and self-adjusting recline; the original World received the Red Dot Design Award, Interior Design Best of Year, the Chicago Athenaeum Good Design Award, the GIO Design Award and the Mixology People's Choice Award
Construction: 78 components, against the 200+ of the average task chair according to the manufacturer
Versions: Task; Meeting, with a cylinder that returns the seat to its starting height; Stool, with a 203 mm cylinder and a 508 mm foot ring
Backrest: tri-panel Form Sensing Mesh, pivoting with the sitter through posture changes; 572 mm high, 483 mm wide
Recline: weight-compensated, 17° of travel plus 8° of backrest tilt, with no tension knobs
Seat: low-abrasion mesh (416 mm deep, 513 mm wide) or upholstered contoured foam (454 mm deep, 528 mm wide), sculpted to reduce pressure points and distribute weight
Seat height: 397-527 mm with mesh seat and standard cylinder, 425-545 mm upholstered, 460-651 mm on the Stool version
Armrests: attached to the backrest and moving with the sitter; fixed at 241 mm or adjustable from 183 to 273 mm, with multi-layer Duron pads; also available armless
Base: Ø 635 mm with arms, Ø 533 mm without; hard or soft castors
Cylinder: grease sealed in the lower unit
Weight: 11.8 kg armless, 12.2 kg with arms
Fit: designed for 95% of the population, 152-193 cm in height, 45.4-181.4 kg in weight
Frame: Black or Gray
Coverings: Catena mesh in five colours or Cascade; upholstered seat in Kvadrat Autumn (14 colours), Corde 4 (11 colours), coated Lotus (9 colours) or Brisa leather alternative (12 colours)
Sustainability: 38% pre-consumer recycled content, 95% recyclable at end of life
Certifications: SCS Indoor Advantage Gold, BIFMA LEVEL 3, DECLARE Red List Free, Health Product Declaration
Warranty: 12 years on components and parts, 5 years on fabrics and cushions
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