Aluminium exterior door L543 made to order

Aluminium exterior door L543 with 92 mm profile and quadruple glazing, certified with thermal coefficient Ud 0.85 W/m²K. Maximum insulation performance and durability for premium entrances.

The L543 exterior door is a high-performance solution developed to Greek quality standards, engineered to deliver resilience and energy efficiency in any climate condition. The 92 mm aluminium profile ensures a robust and stable structure, suited for main entrances and areas demanding stringent security and thermal insulation requirements.

This model's construction combines 3 mm aluminium with an articulated thermal break of 34 mm, technology that prevents heat transfer between indoor and outdoor environments. The quadruple glazing — composed of two 44.1 mm triplex layers with a 5 mm Satinato spacer — delivers superior sound insulation and UV protection. Triple EPDM gaskets around the perimeter guarantee lasting airtightness and resistance to air and water infiltration.

The thermal performance certified by ift Rosenheim at Ud 0.85 W/m²K positions this door among the leaders in aluminium entrance efficiency. Total system depth is 92 mm, with a frame depth of 80 mm, enabling integration into standard openings and renovations without structural modification. Maximum dimensions reach 1200×2500 mm for single leaves, opening diverse design possibilities.

The linear, understated design integrates seamlessly into contemporary and classical architecture, from a library of customizable RAL colours aligned with project requirements. Opening systems — hinged, sliding, or pivot — adapt to high-end public and residential spaces where visual clarity and thermal control are paramount.

Recommended applications include principal entrances in modern residences, office building façades, showrooms, and commercial spaces requiring transparency and microclimate control. L543 pairs beautifully with natural stone flooring, porcelain, or luxury parquet, reinforcing the premium character of the entrance.

The L543 door achieves a thermal coefficient Ud of 0.85 W/m²K, certified by the ift Rosenheim testing institute—an exceptional performance for exterior doors. This is possible thanks to the 3 mm aluminium leaf, the articulated 34 mm thermal break, and the quadruple glazing (44.1 triplex / 5 mm satin / 44.1 triplex), which significantly reduce heat loss.

The L543 offers flexibility in sizing: standard maximum dimensions are 1100×2300 mm, but for a single leaf you can order up to 1200×2500 mm. If your project requires different proportions, we can discuss custom solutions that ensure precise adaptation to your space and compatibility with your existing frame.

The L543 is equipped with 3 EPDM gaskets arranged around the entire perimeter of the leaf, ensuring multi-point sealing. These resilient rubber profiles prevent moisture and wind penetration through continuous compression along the entire door length, without gaps. EPDM is recognized for its durability in extreme weather conditions and maintains effectiveness over time, protecting your home's interior from infiltration.

The L543 is constructed with a 3 mm aluminium profile in the leaf, supported by an aluminium frame with a depth of 80 mm and total system depth of 92 mm. Aluminium is chosen for its corrosion resistance and weather durability, maintaining structural integrity for years. The articulated 34 mm thermal break not only improves insulation but also provides flexibility that reduces stress during continuous operation.

Installation depends on the condition of the existing frame and masonry. The 80 mm frame depth adapts to most standard frames, but before installation we must verify: wall level, flatness and compatibility with the existing threshold. If the frame is damaged or irregular, we recommend surface preparation and leveling to ensure perfect coverage and optimal closure mechanism performance.

While complete security specifications (RC class, hardware, hidden hinges) must be confirmed for your final configuration, the L543 is designed as a premium exterior door with robust 92 mm aluminium profile and quadruple glazing that provide a solid foundation for protection. For precise details on burglary resistance class and available closure systems, we recommend consulting with our showroom team who will tailor the configuration to your desired security level.