MELAKI (REC 15X25 U 25x45)

Description

The REC 15X25 U 25x45 perforated sheet metal – Melaki a clearly ordered, expanded metal grid pattern: rectangular holes measuring 15×25 mm, arranged in a line (orthogonal U grid) with a pitch of 12 mm in the short direction and 69 mm in the long direction, create a beautiful optical illusion. With this regular perforation pattern, the open area is around 34%, providing a balanced level of transparency when seeking both sustained airflow in a ventilation system and comfortable light transmission for a privacy screen, as well as a clear visual lightening of the building envelope. The linear pattern organizes the distribution of the openings and reinforces the striated effect: when viewed from a distance, the perforated surface appears as an airy and stable metal veil; up close, the elongated rectangular holes form a fine, directional, and contemporary pattern. The 15×25 mm perforated rectangle of the punching matrix imprints a clear graphic signature on the metal. When installed horizontally, the openwork panel accentuates the "continuous strip" effect and visually stretches the linearity of the façade; when installed vertically, the geometric mesh reinforces the sensation of height. This perforated sheet metal with a 25×45 U and a 15×25 mm opening has material bridges measuring approximately 7 mm in the short direction (25 − 15) and 20 mm in the long direction (45 − 25). This comfortable material reserve—especially along the 45 direction—allows for good rigidity if a few design principles are followed: • The 2 mm perforated steel plate provides reasonable unframed formats of 1.3 m² to maintain flatness. • Orient the folds preferably perpendicular to the long side of the rectangles to maximize the strength of the openwork grid. • Reduce the fixing center distances and increase the number of support points on the supporting structure, taking into account the directional nature of an orthogonal grid. When correctly structured, the "U" perforation pattern distributes stress in a more directional manner than a staggered pattern; stability will depend directly on the thickness of the perforated sheet metal, the frames, the direction of the folds, and the fastening network. The 7 mm ligatures in the short direction are the design value to be considered in the calculation. An open area of around 34% provides significant air flow and pleasant light transmission, while adequately filtering direct views. Made of 2 mm thick galvanized steel, the price of REC 15X25 U 25x45 – Melaki perforated sheet metal Melaki generally between €56 and €98/m² for a project involving around 100 m² of supply, with the budget varying according to thickness, finish, and installation layout.

Uses

REC 15x25 U 25x45 perforated sheet metal – Melaki geometric precision, strength, and visual balance. Its 15 x 25 mm rectangular pattern, arranged in a line, forms a regular and orderly grid offering an average transparency of approximately 34% open area. This rectangular perforation, with its elongated shape and orthogonal arrangement, produces a clear and controlled visual effect, perfectly suited to architectural projects requiring stable graphic reading, good ventilation, and durable structural strength. Melaki perforated sheet metal Melaki also Melaki in interior design applications such as wall coverings, openwork partitions, or architectural furniture elements. Its rectangular line pattern provides a clear rhythm, an impression of rigor, and graphic stability that can be easily enhanced by natural or artificial light. With a medium opening and a significant amount of residual metal, REC 15x25 U 25x45 sheet metal offers excellent mechanical strength and uniform rigidity over long spans. It resists torsion and impact, while maintaining stable flatness over time. This model is particularly recommended for outdoor applications subject to wind or climatic stresses: guardrails for apartment buildings, envelopes for public buildings, cladding for technical rooms, parking lot facings, or industrial structures.

Team advice

For an optimized range/price ratio, we recommend MELAKI sheet metal MELAKI Galvanized steel, thickness 1.5 mm