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Trade terms for professionals and design studios
Read enough furniture manuals and you notice they never argue with their own features. ICF's does. On this task chair, the DuoChair lever on the left locks the backrest upright and limits its travel to three intermediate positions, and the manual then states plainly: we suggest you avoid locking the tilting mechanism, so the back is supported constantly rather than held in one attitude.
It is a small sentence with a large consequence for a US fit-out. A locked backrest turns a synchronised chair into a fixed one — the conference chair it was not meant to be —, and the mechanism here is built to do the opposite: the counter-thrust rises in proportion to the force you apply, so movement is the feature, not the failure. If someone still wants control, the tension knob under the front of the seat sets how firm that return feels. Forward tilt can be ordered and disengaged. La Mercanti specifies the chair for American projects with the manufacturer's own documentation attached, footnotes included.
Collection: DuoChair, listed by ICF (price list 05/2026) as DuoChair Edge in the DuoMesh, DuoSoft and DuoPad series
Manufacturer: ICF Office
Three versions: XMesh (load-bearing mesh backrest), Soft (upholstered backrest), Pad (layered backrest, knitted polyester over a soft foam core)
Codes: DCE.410, 413 and 414 with DCE.510, 513 and 514 for XMesh; DCE.440, 443 and 444 with DCE.540, 543 and 544 for Soft; DCE.460, 463 and 464 with DCE.560, 563 and 564 for Pad. Within each set: without armrests, with 3D adjustable PPE armrests, with 3D adjustable aluminium armrests; the 4 series has the low backrest, the 5 series the high one
Overall height: 37.8-42.9 in (4 series) and 40.6-45.7 in (5 series); 38.2-43.3 and 40.9-46.1 in on the Pad versions
Width: 19.7 in without armrests (20.5 in on the Pad), 23.2 to 28.3 in with the adjustable armrests
Seat height: 18.5–23.6 in, 5.1 in travel with a lever on the right-hand side; 16.5–21.7 in seat gas lift on request
Seat depth: 16.5-19.3 in, lever under the seat on the left
Backrest adjustment: height-adjustable in seven positions, 2.6 in travel, operated while seated
Mechanism: synchronised tilt with automatic weight adjustment; tension set by a knob; lockable upright and in three intermediate positions via a side lever; forward tilt available on request and disengageable; polyamide housing
Load-bearing structure: rear U-shaped die-cast aluminium, in polished, chromed or painted finish
Seat: cold-foamed polyurethane 2.2 in thick with a structural polypropylene insert, class 1 IM
Armrests: 3D adjustable in height, depth and width, 4D on request; soft black TPU pad; vertical support in die-cast aluminium
Base: five-star base in die-cast aluminium, polished, chromed or painted 070 soft grey and 111 warm black, or in nylon 070 soft grey or 111 warm black; plastic shell in the same two colours
Castors: 2.4 in diameter with a soft central element and an automatic safety brake to EN 12529:2001; soft tread as standard for hard floors, hard tread on request
Coverings: seat in categories A (Bravo), B (Atlantic, Mini, Tonal), C (Cura, Mini Melange, Sealife, Sotega, Step, Step Melange) and F (Breeze Fusion, Grain), or E leather; XMesh back in category X (elastic mesh, Rhythm, Tale, String); DuoSoft with the back in the same categories as the seat; DuoPad in B, C, F, E leather and H Premium Leather; the recycled polyester is GRS certified and compliant with OEKO-TEX Standard 100 and EU Ecolabel
Leather: category E full-grain cowhide, 0.05–0.06 in thick; category H Premium Leather, full-grain cowhide 0.05 in thick, leather of Italian origin to UNI EN 16484 and Der Blaue Engel RAL UZ 148; flame-retardant leather on request
ICF fabrics: in the categories available for the model. Mini and Mini Melange in Trevira CS: UNI 9175 class 1 IM, DIN 4102 B1, IMO Part 8; Step and Step Melange in Trevira CS with IMO MSC 307(88) and MED certificate; Bravo, Cura, Sealife, Tale and Tonal in post-consumer recycled polyester with Global Recycled Standard and OEKO-TEX Standard 100, Sealife with Seaqual yarn; Atlantic in polyester with EU Ecolabel; Breeze Fusion 88% wool and 12% polyamide; Sotega 73% PVC on cotton; Martindale abrasion from 50,000–110,000 cycles
Care and maintenance: fabric with a vacuum cleaner and upholstery nozzle, stains with a dry cleaning agent, never rotating brushes or water; mesh with a soft brush or sponge and water with detergent; leather and hide kept away from direct sunlight and heat sources, cleaned two or three times a year with Leather Soft Cleaner and protected with Leather Protection Cream; aluminium with a soft cloth, water and neutral soap, never solvents or abrasives; plastic parts with soap and water
Spare parts and accessories: set of five castors, pairs of 3D adjustable armrests in black or grey PPE or in painted, polished or chromed aluminium
Weight: 35 lb on model DCE.513 (technical sheet); 29–40 lb depending on model and armrests (price list)
End of life: around 93% recyclable when components are separated completely and correctly; composition 62% plastic, 14% metal, 13% aluminium, 4% polyurethane, 7% miscellaneous (figures refer to model DCE.513); every component can be dismantled for repair, reuse and recycling
Certifications: EN 1335:2020 level A and BS EN 1335-2:2018; VOC Emission Test Report compliant with DE-UZ 117, RAL GZ 430, EU Ecolabel and FEMB, plus CAM, LEED v4 and v4.1 Beta and ANSI Bifma sections 7.6.1, 7.6.2 and 7.6.3 with Mini and Mini Melange coverings; fire reaction class 1 IM with Atlantic, Rhythm, Mini and Mini Melange, class 1 with mesh
Delivery: assembled in a cardboard box; unassembled on request, to be assembled by qualified personnel
Let us know which finishes you'd like to explore
Five decisions, in the order that saves rework.
