LEGE R20T30)

Description

Lege R20T30 perforated sheet metal Lege an airy and luminous visual design: 20 mm diameter circles arranged in a staggered pattern with a constant pitch constant 30 mm. Under the designation Rv20-30, this perforated pattern achieves approximately 40% open area, a level that is ideal for combining airflow, light transmission, and a perceived lightness of the envelope. Thanks to its triangular T-shaped mesh, the distribution of openings remains uniform and without any particular direction: shadows are cast in a soft pattern, and the surface, when viewed from a distance, resembles a regular metal veil. The Ø 20 mm perforation diameter offers a clear but measured graphic presence. Depending on the color, the effect can be muted (dark tones) or more pronounced (light/metallic tones). The perforated pattern is ideal for ventilated facades, HVAC equipment screens, parking lot screens, and cladding where ventilation and transparency are paramount, while still providing some background concealment. With T = 30 mm and D = 20 mm, the metal bridges in line are approximately 10 mm, while the minimum diagonal reserve of the triangular mesh is around 6 mm. This remaining material requires a strict structural approach: • for 2 mm steel, favor modest unframed formats; • add a load-bearing frame and/or stiffening profiles; • in windy locations or for larger spans, aim for a thickness of 3 mm for stability; • reduce the fixing pitch and increase the number of support points. When properly supported by a suitable frame, perforated mesh in a triangular pattern effectively distributes stress in both axes, ensuring satisfactory stability despite a significant level of openness. Made of 2 mm thick galvanized steel, the price range for R20T30 perforated sheet metal is generally between €54 and €90/m² for around 100 m² of supply, varying according to thickness, finishes, installation pattern, frames/stiffeners, and site context. Please note: generous openings reduce the mass and make the perforated skin lighter; they also make the supporting structure more visible, which must be anticipated in the architectural design.

Uses

R20T30 – Lege perforated sheet metal Lege strength, visual balance, and controlled protection. Its 20 mm round perforated pattern in a staggered arrangement forms a harmonious grid offering 40% transparency, ideal for projects where security and ventilation must coexist in the same plane. The perforation is suitable for a wide range of outdoor applications, including urban fencing, facade cladding, guardrails for apartment buildings, technical rooms, and cladding for public and industrial buildings. R20T30 perforation offers sufficient metal density to withstand impact and mechanical stress while allowing air and light to circulate. Its staggered openwork design produces a fluid and continuous appearance, avoiding rigid alignments and reinforcing the uniformity of the cladding. With a thickness of 2 mm to 3 mm, R20T30 perforated sheet metal guarantees good performance over long spans and maintains consistent flatness over time. With 40% transparency, R20T30 sheet metal is an excellent compromise between natural ventilation and visual concealment. It is ideal for technical cladding, ventilation covers, and service facings, where equipment protection must be accompanied by continuous air flow. On facades, its perforated pattern creates a regular play of light, modulating reflections and shadows without creating moiré effects. Its circular pattern creates a soft, stable texture that is easy to lay out. The repetition of circles provides a clear reading of the material, precisely balancing full and empty spaces. Urban architects find it a reliable graphic medium for structuring the built landscape. Metalworkers find it a homogeneous and solid material that is easy to cut and install. Interior designers see it as a breathable surface capable of organizing light without breaking visual continuity.

Team advice

For an optimized range/price ratio, we recommend LEGE sheet metal LEGE 2 mm thick galvanized steel