MAORI (LR 4x20 Z 15x25)

Description

The LR 4×20 Z 15×25 – Maori perforated sheet Maori an elongated and precise pattern: oblong perforated holes measuring 4×20 mm, arranged in a staggered pattern with a pitch of 15 mm in the short direction and 25 mm in the long direction. With this perforation pattern, the void ratio is approximately 21%, which is a medium level of transparency, useful when it is necessary to adapt the useful air passage, control the light input, and ensure calm visual reading. The staggered "Z" arrangement homogenizes the distribution of the openings and generates a raster of soft shapes, while preserving the linear presence of the oblong pattern. The 4×20 mm perforated hole creates an elegant and distinctive signature. When placed horizontally, it visually stretches the facades and softens the perception of volumes; when placed vertically, it reinforces the effect of height and slims the building. This Maori perforated pattern Maori for cladding, technical screens, HVAC equipment covers, false ceilings, and filter partitions, when fine granularity, moderate ventilation, and effective background masking are required. This perforated sheet metal with a 15×25 mm Z pattern and 4×20 mm holes has material bridges of approximately 11 mm in the short direction (15 – 4) and 5 mm in the long direction (25 – 20). In a staggered arrangement, the minimum slanted metal reserve remains adequate, but the 5 mm longitudinal steel ligature requires caution if the load is applied in this direction: • for 1.5 mm steel, favor unframed formats of a reasonable size around 1.1 m² depending on the mechanical load applied. • For large panels, use a peripheral metal frame. • Preferably orient the folds perpendicular to the long side of the oblongs to maximize strength. For this oblong perforated sheet metal, a 21% air transparency gap provides regular micro-ventilation and moderate light transmission, with clearly filtered direct views. The 4×20 mm slits limit the introduction of objects and prevent fingers from getting caught, which is useful in areas accessible to the public or in public buildings. In guardrails, the linear effect is guaranteed. When used in false ceilings, the combination with an acoustic veil and an absorbent material transforms the perforated sheet metal into a high-performance technical cladding. The price range for 1.5 mm thick galvanized steel will generally be between €52 and €90/m² for LR 4×20 Z 15×25 – Maori perforated sheet metal Maori a project involving around 100 m² of supply.

Uses

LR 4x20 Z 15x25 - Maori perforated sheet metal Maori in guardrail infill, partition grilles, and technical facade cladding. The oblong holes reduce visibility in a given direction, creating a progressive screening effect depending on the viewing angle. This optical property makes the sheet particularly suitable for balconies, terraces, and walkways, where it protects privacy while maintaining natural ventilation and light. The perforated pattern can be oriented horizontally to enhance the view of the landscape, or vertically to complement the height of the building. The 21% openness ratio of this perforated sheet metal promotes controlled ventilation while limiting direct views, blocking prying eyes and avoiding the use of reed screens. In front lighting, the sheet metal appears as a dense, structured mesh. In backlighting, it becomes more open and luminous. With a transparency of approximately 21%, LR 4x20 Z 15x25 perforated sheet metal offers a subtle balance between concealment and ventilation. It allows light to pass through, creating a regular pattern of light stripes that vary depending on the orientation and exposure. On the façade, light glides over the perforations, highlighting the fineness of the design and accentuating the directional perception of the metal. Thanks to its small aperture and high proportion of residual metal, Maori sheet metal Maori remarkable mechanical strength, ensuring the stability of panels over large spans without deformation. It is a reliable material for demanding outdoor environments: urban fences, panels, or ventilation screens. LR 4x20 Z 15x25 – Maori perforated sheet metal Maori finesse, regularity, and visual control. Its 4 x 20 mm oblong pattern in a staggered arrangement forms a fluid and balanced grid, offering approximately 21% transparency. This oblong perforation, with its elongated design, is discreet.

Team advice

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