Aluminium Profiles for Shutters and Partitions

Walk into any modular kitchen showroom or new office in India and aluminium profiles are everywhere: thin black frames around fluted-glass wall cabinets, gold-tone lines along handle-less drawers, slim mullions dividing a cabin from an open floor, a sliding glass partition that closes off a study from a living room. The aluminium extrusion has quietly become one of the most important materials in Indian interiors — not as a surface, but as the frame that lets glass, and sometimes board, do jobs it cannot do alone.

It is also one of the most loosely specified. Profiles are bought by look from a catalogue, glass thickness is chosen by price, hinges meant for 18 mm board are forced into a 20 mm aluminium frame, and partitions are hung from gypsum ceilings that were never designed to hold them. The result is shutters that sag after a year, partitions that rattle when a door closes, and finishes that scratch or chalk. None of this is the fault of aluminium; it is the result of treating a precise, engineered system as a decorative trim.

This article explains what an aluminium profile is, which profile families suit shutters and which suit partitions, what sizes, glass thicknesses and hardware go with them, how anodising and powder coating compare, and what they cost in October 2026. It closes with fixing details and rules that keep profile shutters and partitions straight, quiet and safe for years.

A short history of the aluminium profile

Aluminium was a precious metal until the late nineteenth century, when the Hall–Héroult electrolytic process, developed independently in 1886, made it cheap enough to use in quantity. Extrusion — pushing a heated billet through a shaped steel die, like toothpaste from a tube — turned the metal into long sections of almost any cross-section, and in the twentieth century extruded aluminium became the standard material for window frames, curtain walls and shopfronts across the world. It was light, did not rust, could be anodised to a hard, permanent finish, and allowed complex shapes with grooves for glass, gaskets and screws in a single piece.

In India, aluminium sections first became familiar in sliding windows and in office and shop fronts, often in natural silver anodised finish. From the 2000s, framed glass partitions became the standard way to divide offices, and from the 2010s the profile moved into homes: kitchen wall cabinets with glass shutters, wardrobes with tinted or fluted glass, handle-less kitchens with continuous aluminium handle profiles, and slim black partitions inspired by industrial steel windows. Today a single home can contain five or six different aluminium systems, each from a different supplier, which is why understanding them as families matters.

What an aluminium profile actually is

Most architectural and interior profiles are extruded from aluminium–magnesium–silicon alloys, of which 6063 is the most common because it extrudes cleanly into thin, detailed shapes and takes anodising and powder coating well; 6061 and similar alloys are used where more strength is needed. After extrusion, profiles are heat-treated to a temper, commonly designated T5 or T6, which sets their hardness and strength. In India, wrought aluminium bars, rods and sections are covered by IS 733, aluminium doors, windows and ventilators by IS 1948, and anodic coatings by IS 1868.

Three numbers describe a profile for an interior designer: the face width (what is seen from the front), the depth (how far it projects), and the wall thickness of the extrusion. Shutter frames commonly have face widths of about 19–45 mm and wall thicknesses of about 1.0–1.5 mm; partition frames have face widths of about 20–50 mm, depths of about 40–100 mm and wall thicknesses of about 1.2–2.0 mm. Thicker walls make stiffer, heavier profiles. Because profiles are sold by weight, the weight per running metre — from a few hundred grams for a slim handle profile to well over a kilogram for a partition mullion — is a useful check on whether two quotations are describing the same thing.

Finishes: anodised, powder coated or wood-grain

Aluminium forms a thin natural oxide layer that protects it, but interior profiles are almost always finished, both for appearance and to resist scratching and fingermarks. The two main finishes work in very different ways. Anodising is an electrochemical process that grows the oxide layer into a hard, porous film that is part of the metal itself; it can be left natural silver or dyed bronze, black or champagne, and it is then sealed. Because it is not a coating, it cannot peel. Anodic film thickness is graded in microns — architectural work commonly specifies classes of about 15–25 µm, with thicker films for exterior and high-wear use — and IS 1868 covers the requirements in India.

Powder coating sprays a dry polyester or similar resin powder onto the profile, which is then baked into a continuous film, typically about 60–80 µm thick on aluminium. It offers any colour and texture — matt black, sand-textured bronze, white, metallic — at lower cost than coloured anodising, and is the most common finish on black slim partitions and handle profiles. Its life depends on the pre-treatment of the metal before coating; reputable coaters follow recognised quality schemes such as Qualicoat. Wood-grain finishes are produced by sublimation printing a wood pattern onto a powder-coated base and are used on window and door profiles more than interior shutters.

Aluminium profile shutters: sizes, glass and hinges

A glass shutter in an aluminium frame is a different animal from an 18 mm board shutter. It is lighter for its size, but the frame is narrow and the hinge must fix into a thin-walled extrusion rather than a thick board. Most suppliers therefore use special profile hinges, or narrow-frame hinges with a small cup, designed for their own profiles; standard 35 mm cup hinges intended for board do not belong in a 20 mm frame. The supplier's hinge, used at the spacing they recommend, is the single most important detail.

Size limits follow from the hinge and the frame. A narrow 19–22 mm frame commonly works up to about 450–600 mm wide and up to about 900–1200 mm tall for wall cabinets with two hinges; taller shutters for crockery units and wardrobes need three or four hinges and often the wider 40–45 mm frame. Beyond about 600 mm width, hinged glass shutters become heavy on the hinges and should be split, or converted to sliding or lift-up systems. Glass should be toughened — commonly 4–6 mm in shutters — so that if it breaks it shatters into small, blunt pieces rather than sharp shards.

Glass choice changes the character of the unit. Clear glass displays crockery and needs disciplined storage; fluted (reeded) glass blurs the contents into soft vertical lines and is the most popular choice in Indian kitchens and wardrobes today; frosted or acid-etched glass hides everything; tinted bronze or grey glass in a black frame gives an industrial look; and back-painted or lacquered glass in a profile becomes a solid coloured shutter with a frame line. A thin LED strip in an aluminium profile inside the unit makes fluted and frosted glass glow and hides fingerprints in dim light.

Handle profiles on board shutters

The other big use of aluminium in shutters is the handle profile. A G-profile or J-profile is routed into the top or side edge of a board shutter, leaving a finger grip of about 20–30 mm; a gola profile is fixed to the carcass between drawers, so the shutters themselves stay plain. Both give handle-less kitchens and wardrobes their clean lines. The profile must be machined accurately into the board, and on tall units the grip should be at a height that a hand naturally reaches — on a wall unit, at the bottom edge; on a base unit, at the top.

Aluminium partitions: four types

Partitions use aluminium to hold larger panes of glass, and the type of system decides how heavy, how quiet and how expensive the partition will be. In homes the choice is usually between a frameless fixed glass partition held in channels and a slim framed partition; in offices, between a single-glazed system and a double-glazed acoustic system.

Glass in partitions must be safety glass. Toughened glass is the usual choice; laminated glass, which holds together when broken, is preferred where a broken pane could fall or where people might fall against it, and in doors and low-level panes. The Indian code of practice for the use of glass in buildings, IS 16231, deals with glass selection and human-impact safety, and should guide thickness and type for large panes. Clear glass partitions also need visible marking so people do not walk into them: a frosted band, a pattern or a logo is commonly placed in bands at about 850–1000 mm and 1400–1600 mm above floor — heights drawn from UK practice that are widely followed — and a fluted or frosted pane does the job by itself.

Head, base and door details

A partition is only as straight as its fixings. The base channel or base frame should be fixed to the finished floor or, better, to the screed with the flooring finished up to it. The head must be fixed to something solid: in homes and offices with a gypsum false ceiling, the partition head should either go through to the RCC slab — which also stops sound travelling over the top — or be fixed to a timber or steel ground built into the false ceiling and itself hung from the slab. A partition hung from gypsum board alone will flex every time the door closes. Doors in glass partitions need either a floor spring (cut into the floor) or heavy-duty pivot or patch hinges, plus a door stop or a closer so the door does not swing into the glass.

What aluminium profiles cost in 2026

Profiles are sold by the fabricator either per running metre, per kilogram of section, or — most often for interiors — as a finished item per square foot of shutter or partition, including glass, hardware and fixing. The finished rates below follow the bands used elsewhere on this blog for glass shutters and toughened glass partitions, and extend them to the other systems. They are indicative October 2026 figures for metro and tier-2 cities, before GST, and vary with the brand, finish, glass type and quantity.

A worked example shows how quickly the numbers add up. A 900 × 720 mm kitchen wall unit with two fluted-glass shutters (Fig. 2) has about 7 sq ft of shutter face; at ₹700–1,400 per sq ft that is roughly ₹4,900–9,800 for the shutters, plus the carcass and the LED strip. A 3600 × 2700 mm slim framed partition with a door (Fig. 3) is about 105 sq ft; at ₹700–1,400 per sq ft it costs roughly ₹73,000–1,47,000, with a floor spring and door hardware on top. The same opening in clear 12 mm toughened glass in channels, without a door, would cost about ₹47,000–94,000.

Maintenance, cleaning and what goes wrong

Aluminium needs little maintenance indoors, but finishes and glass need care. Clean profiles with a soft cloth and mild soap in water; avoid abrasive pads, which scratch anodising and powder coat, and avoid strong alkaline or acidic cleaners, which can dull anodised surfaces. Fluted glass collects dust in its grooves and is best cleaned with a soft brush and a damp microfibre cloth. Hinges in profile shutters may need adjustment after the first few months as the shutters settle, so ask the fabricator for an adjustment visit.

The common failures are predictable: shutters wider or taller than the hinge chart allows, which sag; partitions fixed to gypsum ceilings, which flex and rattle; cut ends of powder-coated profiles left raw, which chip; profiles from different batches or suppliers in one room, whose colours do not quite match; and clear glass without marking, which people walk into. Each one is avoided by specifying the system completely — profile, finish, glass, hardware and fixing — rather than choosing a frame colour from a sample chain.

Where aluminium profiles are heading

Profiles are getting slimmer and darker. Face widths of 10–20 mm in matt black, bronze and champagne finishes are replacing the wide silver frames of earlier office partitions, and the industrial-window look has moved firmly into homes. Lighting is merging with the profile: LED channels built into shelf edges, handle profiles and partition mullions give light without visible fittings. Sliding systems are becoming quieter and more concealed, with soft-close and synchronised panels. And sustainability is entering the specification — aluminium is highly recyclable, recycled aluminium needs far less energy to produce than primary metal, and some suppliers now offer profiles with declared recycled content, which green-building ratings such as IGBC and GRIHA can recognise.

Rules for specifying aluminium profiles

• Specify the whole system — profile, finish, glass, hinges or tracks, and fixing — from one supplier where possible.
• Keep hinged glass shutters to about 450–600 mm wide, and add a hinge for every 400–500 mm of height beyond the first two, following the maker's chart.
• Use toughened glass in all shutters and partitions, and laminated glass where a broken pane could fall or in low-level and door panes.
• Use the profile maker's hinges, not board hinges, in aluminium shutter frames.
• Fix partition heads to the slab or to a ground hung from the slab — never to gypsum board alone.
• Mark clear glass partitions with frosted bands or patterns at eye and waist height, or choose fluted or frosted glass.
• Order all profiles for one room in one batch and one finish to avoid colour differences.
• Compare quotations by profile section drawing and weight per metre, not by photograph.

Frequently asked questions

Which is better for kitchen shutters — aluminium profile or wooden shutters?

Aluminium profile shutters with glass are lighter-looking, do not swell with moisture and suit wall cabinets, crockery units and display bays. Board shutters in laminate, acrylic or PU suit base units and anything that takes knocks. Most kitchens use both: board for base units and tall units, profile-and-glass for one or two wall cabinets.

What thickness of glass is used in aluminium profile shutters?

Commonly 4–6 mm toughened glass in kitchen and wardrobe shutters, set in a gasket in the profile groove. Partitions use 8–12 mm toughened glass, and laminated glass where safety requires it.

Is anodised or powder-coated aluminium better?

Anodising is harder and cannot peel, and suits metallic finishes and high-wear handles; powder coating gives any colour, especially matt black, at a lower cost. Both are durable indoors when applied by a good coater; the quality of pre-treatment matters more than the choice.

Can an aluminium glass partition be fixed to a false ceiling?

Only if the false ceiling has a solid ground — a plywood or steel member hung from the slab — built in for the partition. Gypsum board alone cannot hold a partition head. For sound privacy, the partition should continue to the slab above the ceiling.

How much does an aluminium glass partition cost per sq ft?

Indicatively in October 2026, about ₹450–900 per sq ft for clear toughened glass in aluminium channels, ₹700–1,400 for slim framed fluted-glass partitions, ₹650–1,300 for office single-glazed systems and ₹1,200–2,500 for double-glazed acoustic systems, before GST.