Description

The GA 1372 is an aluminium general purpose moulding trim with overall dimensions of 24.0mm wide by 10.50mm deep — GA’s deeper, more substantial moulding profile. At 10.50mm, this profile projects more than twice as far from its fixing surface as the GA 1371, giving it a meaningful three-dimensional presence and the ability to bridge surface steps, cover deeper rebates, and create genuine shadow lines as part of a designed interior detail scheme.

The combination of a near-one-inch face width (24.0mm) with a 10.5mm depth puts this profile into the same territory as a traditional timber cover moulding or window bead — but in a non-warping, non-corroding, low-maintenance aluminium form. The profile is appropriate wherever the trim needs to be seen and read as a deliberate visual element, not just a functional cover strip. It is equally practical as a functional cover for deeper gaps, stepped surfaces, or service runs that require more depth to conceal fully.

Manufactured from grade 6063 aluminium alloy to BS EN 755, 515, and 573 standards. Available from stock in mill (untreated) or natural anodised finish in 4-metre lengths. Powder coat and cut lengths available to order.

N.B. Jig marks, up to 50mm in from each end (often less than this), can be apparent on anodised items. These marks can be cut away before fixing.

Shade variations can occur with anodised surfaces due to the reactive nature of this finishing process.

Health and Safety

(Health and Safety doc. (1).pdf, 240 Kb) [View Document]

Install

(Profiles and Extrusions Install (5).pdf, 238 Kb) [View Document]

Maint.

(Maintenance of Aluminium Surfaces (1).pdf, 232 Kb) [View Document]

Tech Data

(Tech info extrusions (4).pdf, 397 Kb) [View Document]

Test Data

(Test – Extrusion Resistance to Surface Marking.pdf, 227 Kb) [View Document]

GA 1372 Aluminium Moulding Trim - 24.0 × 10.50mm

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Product Code: Categories Aluminium Profiles & Extrusions, Aluminium Mouldings Product Type: Aluminium Mouldings

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Specifications

Product Code: GA 1372 (Mill) / GA 1372s (Natural Anodised)

Overall Dimensions: 24.0mm wide × 10.50mm deep

Profile Character: Deeper face-applied moulding — prominent projection from surface, creates shadow lines, covers steps and surface level changes

Profile Category: Aluminium Moulding — Face-Applied Decorative and Functional Trim

Material: Grade 6063 Aluminium Alloy

Standards: BS EN 755, BS EN 515, BS EN 573

Anodising Standard: BS EN ISO 7599

Powder Coating Standard: BS 6496 (1984) — available to order, please contact Sales

Length: 4 metres (4000mm) standard stock length

Available Finishes: Mill (Untreated) or Natural Anodised

Finish Notes: Anodised product codes carry an ‘s’ suffix (e.g. GA 1371s). Jig marks within 50mm of each end are standard and can be trimmed during final fitting. Shade variations may occur between batches.

Surface Marking Test: Independent testing (Ceram / Lucideon): anodised surface achieved up to 4× greater abrasion resistance than mill finish

Key Benefits

Genuine Depth Creates Real Shadow Lines: At 10.50mm deep, the GA 1372 projects sufficiently to cast a visible shadow line along its edges under normal interior lighting. This depth is what distinguishes a moulding with genuine visual presence from a flat cover strip. The shadow line defines the profile as a designed feature element, making it appropriate not just as a functional cover but as a deliberate detail in wall and ceiling schemes.

Covers Deeper Steps, Rebates, and Surface Level Changes: Where two surfaces are not flush — due to differing panel thicknesses, a step at a rebated edge, or an uneven substrate — a shallow moulding cannot bridge the transition without leaving a gap visible beneath one edge. The GA 1372’s 10.50mm depth provides the clearance to sit over these surface changes and still bear firmly against both, covering the step without requiring additional packing or making good.

An Aluminium Alternative to Timber Architrave and Cover Moulding: Timber cover mouldings and architraves are subject to splitting, warping, paint failure, and moisture damage over time. The GA 1372 provides the same cover and visual function in a material that holds its shape, resists moisture, does not require painting, and will not shrink or crack with temperature and humidity changes. For commercial and high-use buildings where the maintenance of painted timber mouldings is a recurring cost, an aluminium moulding profile eliminates that requirement.

Proven Surface Durability in Anodised Finish: A deeper moulding with more surface area presents more opportunity for surface damage in high-contact locations. Independent testing by Ceram Building Technology (now Lucideon) measured the anodised aluminium surface at up to four times the abrasion resistance of mill finish before visible marking occurs. For the GA 1372 used as a skirting-height trim, a dado-level band, or a column-surround moulding — positions where regular contact with furniture, trolleys, or cleaning equipment is likely — the anodised finish offers measurably better long-term appearance.

No Maintenance Over the Profile’s Service Life: Once fixed, the GA 1372 will endure indefinitely. Grade 6063 aluminium’s self-renewing oxide layer provides corrosion resistance that is intrinsic to the material, not dependent on a surface coating that can chip, peel, or fade. This makes it a practical, cost-effective choice for buildings where access for maintenance is difficult or where ongoing redecoration costs must be minimised. However, when a more consistent and appealing surface is required than an anodised finish is normally the solution.

Applications

Shadow-Line Details in Wall & Ceiling Surfaces: In contemporary interior fit-out, horizontal banding and shadow-line details along walls and ceilings are used to break up large surface areas, define zones, and add visual depth without applied decoration. The GA 1372’s 10.50mm projection creates a visible shadow line from both above and below, making it an effective profiled element for this purpose. It can be fixed at skirting height, dado height, or ceiling perimeter level depending on the design intent.

Window & Door Reveal Trims: At window and door reveals where the frame meets the wall face, a surface-level transition typically needs to be covered with a trim that can accommodate the depth difference and produce a neat, finished junction. The GA 1372’s 10.50mm depth gives it the reach to bridge these transitions cleanly, and the aluminium construction means the trim will not warp or separate from the wall face as the building moves seasonally — a common failure mode for timber reveals.

Skirting & Dado Banding in Commercial Interiors: For commercial environments where conventional skirting boards and dado rails need to be durable, maintenance-free, and resistant to impact from cleaning machines and trolleys, the GA 1372 provides an aluminium alternative in a proportionate size. The 24mm face and 10.5mm depth give the profile a substantive visual weight that reads appropriately as a skirting or dado banding element, while the aluminium construction ensures it will not chip or crack.

Column Surrounds, Post Cladding & Vertical Feature Strips: When cladding or framing columns, structural posts, and vertical elements in commercial interiors, the junctions between individual cladding sections need a cover moulding that has enough depth to mask any gap or step at the joint line. The GA 1372 provides this with a profile that is proportionate to the scale of a column surround and creates a clean, defined vertical line at each cladding junction. The anodised finish complements, stone, and painted surfaces typically used in the same context.