Glass partition wall M1 by Quadrifoglio in a US open plan office

875 millimetres of clear passage: M1 M2 M3 doors drawn for access

Quadrifoglio
M1 M2 M3
M1 M2 M3 Guide price — every project is bespoke
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From $ 9,200

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Accessibility is usually retrofitted into a partition layout; here it is in the technical sheet. Quadrifoglio states that the doors of the M1-M2-M3 system were designed to give a clear passage of 875 mm with a hinged leaf open at ninety degrees, and 837 mm on a single sliding door, with handles set at about 900 mm from the floor — a height the manufacturer ties explicitly to the rules for public environments — the same rules its Z2 reception counter answers at the front desk.

The same practicality runs through the hardware: three pivot hinges per leaf opening to 180 degrees, a 2 mm impact-resistant edge on solid doors, damped braking on the sliding versions, and an electric release that keeps a fixed knob and a free lever so the room can always be left in a power failure.

Give us the floor plan and the room list; Quadrifoglio's technical office signs off the layout, and the schedule comes back with a module against every line.

Technical information based on data declared by the manufacturer.

System: M1-M2-M3 monolithic glazed partition, full-height internal walls, glazed or partly solid
Manufacturer: Quadrifoglio Group (Mansuè, Treviso, Italy)
Design: Quadrifoglio Group
Three families by profile section: M1 profile 3.9 × 1.6 in single-glazed · M2 profile 3.9 × 1.6 in double-glazed · M3 profile 2.2 × 1.6 in single-glazed
Heights: from 82.7 to 131.5 in
Profiles: extruded aluminium 0.06 in thick, anodised and paintable on request; airtight gaskets against dust build-up; lower device adjusting glass height by up to ±0.59 in; glass retainers on the horizontal profiles preventing accidental fall
Modules: start and end in glass or panel, intermediate, fixed 90°, two-way, three-way and four-way (the latter with a circular profile), wood-to-glass continuity module, technical module with sockets
Maximum weight per linear metre (H 131.5 in, 0.5 in glass): M1 243 lb, M2 476 lb, M3 238 lb
Glass: toughened 0.39 and 0.47 in clear or satin; laminated 0.41 and 0.49 in (0.38 PVB); acoustic laminated 0.42 and 0.5 in (0.76 PVB), also satin; clear gaskets joining the panes in continuity
Solid panels: melamine as standard, lacquered or wood-veneered. On M1 and M2 the two sides of one module may carry different finishes; on M3 the finish is the same on both sides
Doors: solid hinged 1.6 in with 0.08 in impact-resistant edge; hinged in 0.39 in toughened glass; framed glass (0.24 in pane in a 1.6 × 0.59 in frame); sliding in 0.39 in toughened glass, single 39.4-78.7 in or double 78.7-157.5 in with damped braking on both opening and closing (braking not available with the M3 profile). Three pivot hinges per leaf, opening up to 180°
Declared accessibility: clear passage 34.4 in on hinged doors open at 90° and 33 in on single sliding doors; handles at about 35.4 in from the floor (±2 in)
Accessories: automatic drop-down acoustic seal (not available on polished-edge glass doors or over carpet), ventilation grille on solid doors, electric release 10-24 V with fixed knob and free lever for emergency exit
Self-supporting wall: available with a 3.9 × 1.2 in top frame, independent of the ceiling; corners and joints must be structural aluminium; the layout is to be checked with the technical office before ordering
Finishes: matt satin anodised aluminium, RAL on request, Gold, Bronze, Corten, Shadow Grey; profiles can also be clad in 0.02 in pre-composite with polyurethane adhesives, sanded and finished in water-based acrylic; woods Grey Elm and American Walnut
Declared testing: soft-body impact at 110, 7, 2 and 1 lb (UNI 10880:2000 cl. 5.1-5.4); airborne sound insulation to UNI EN ISO 10140-2:2010 and UNI EN ISO 717-1:2013 — M1 from Rw 33 to 38 dB, M2 from 36 to 42 dB, M3 from 33 to 38 dB; panels with Euroclass B-s1,d0 backing (EN 13501-1) on request
Sustainability and management systems: panels in 100% recycled wood, CATAS Quality Award CARB, resins free of SVHC substances; UNI EN ISO 9001:2015, 14001:2015 and 45001:2018; FSC and Pannello Ecologico

La Mercanti USA Llc — your partner for Italian design and contract supply.
Los Angeles, CA, USA · +1 855 335 8079 · info@lamercanti.us
Supply, quotes, specifications and project support across the United States and North America.

Documents and Catalogs

Quadrifoglio Executive Office Catalogue Quadrifoglio Office Partition Walls Catalogue Desking & Meeting Catalogue Reception Systems Catalogue Quadrifoglio Finishes & Materials

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FAQ

What clear width do the doors give?
875 mm on a hinged leaf opened to ninety degrees and 837 mm on a single sliding door, as stated by the manufacturer.
What is the wall itself made of?
Extruded aluminium profiles 1.5 mm thick, anodised, with airtight gaskets and a glass adjustment device in the base.
What heights does the system reach?
From 2100 mm to 3340 mm, with a device in the base profile adjusting the glass by up to fifteen millimetres.
What happens to the electric release in a power cut?
It is paired with a handle that keeps a fixed knob on one side and a free lever on the other, so the room can still be left.
What holds the glass in place?
Retainers on the horizontal profiles, which lock the pane and prevent an accidental fall, plus clear gaskets joining panes in continuity.

How to phase a partition install around an occupied floor

Demountable systems can go up in stages. Five steps that keep the teams working.

Split the floor into zones
Each zone should end on a junction, not mid-run.
Start furthest from the entrance
Work backwards so the finished rooms are never a site corridor.
Group the glazing deliveries
Panes from one batch keep the finish consistent across zones.
Keep power sequencing in mind
Technical modules need the electrician before the glass goes in.
Agree the sequence in writing
La Mercanti fixes zones and quantities with Quadrifoglio before dispatch.

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