Aluminium exterior door L971 made to order

Aluminium exterior door with 92 mm system depth and quadruple glazing, certified Ud 0.85 W/m²K. Premium thermal performance and contemporary design for demanding residential and commercial applications.

The L971 exterior door represents a high-performance solution designed for premium projects requiring exceptional thermal insulation and contemporary design. The aluminium profile at 3 mm thickness with a total system depth of 92 mm establishes a robust yet elegant structure, ideal for modern façades and spaces where thermal comfort is paramount.

The door's construction combines premium materials with cutting-edge insulation technology. The frame depth of 80 mm and leaf thickness of 92 mm ensure structural rigidity and long-term stability. The articulated thermal break of 34 mm substantially reduces heat transfer, reflected in the outstanding Ud coefficient of 0.85 W/m²K — a value certified to international ift Rosenheim standards. The triple-layer EPDM gasket system provides comprehensive protection against water and air infiltration, maintaining energy efficiency over decades.

The specialized quadruple glazing (44.1 triplex / 5mm Satinato / 44.1 Triplex) combined with superior thermal insulation delivers elite acoustic and energy performance. This configuration not only minimizes thermal loss but also ensures significant reduction of external noise, creating a serene and comfortable interior environment. ift Rosenheim certification guarantees compliance with stringent European standards for performance and durability.

Sizing flexibility allows the L971 to adapt seamlessly across diverse architectural contexts. Standard dimensions up to 1100×2300 mm and single-leaf capability up to 1200×2500 mm enable integration across a wide range of projects. The door can be configured with multiple opening systems — swing, sliding, or pivot — offering design freedom for every specific application.

This is the ideal solution for modern residences, premium offices, and commercial applications where thermal performance, durability, and aesthetics are priorities. Perfect for both selective renovations and new construction, L971 transforms the entrance into a statement of quality and attention to detail.

Ud 0.85 W/m²K (certified by ift Rosenheim) is top-tier thermal performance for exterior doors — better than the market average of 1.0–1.2. This means minimal heat loss, superior winter comfort, and reduced heating costs. The quadruple glazing and articulated 34 mm thermal break deliver this efficiency.

The door is constructed from 3 mm aluminium with a total profile depth of 92 mm and frame depth of 80 mm, delivering a rigid and stable structure. Aluminium doesn't warp, doesn't rot, and requires no periodic refinishing — ideal for humid climates and coastal areas. The deep profile and articulated thermal break provide acoustic insulation alongside thermal protection.

The quadruple glazing (44.1 triplex / 5mm Satinato / 44.1 Triplex) combines four sheets — two 44 mm triplex layers and a central 5 mm layer — for maximum protection and privacy. Triplex layers absorb impact and remain bonded when cracked, while the varied stratification ensures optical refraction and light filtering. This configuration delivers high security and excellent acoustic insulation.

Standard dimensions are 1100×2300 mm, and for a single leaf (standard pivot opening) you can order up to 1200×2500 mm. Any custom size, including wider dual-leaf openings, can be manufactured on order — the process takes 4–6 weeks. We recommend professional measurement and installation to ensure perfect sealing and optimal operation.

The door features three EPDM gaskets arranged multi-point that ensure complete sealing against wind, water, and dust. For security, the deep aluminium profile and industrial-grade hardware — combined with triplex lamination — create a robust barrier. While not certified to RC class (RC2/RC3), the construction and materials deliver notable resistance to mechanical attempts and brute force.

The total system thickness is 92 mm (frame 80 mm + leaf 92 mm), a standard dimension that adapts easily to traditional masonry and modern continuous-insulation systems. Installation requires a sill and masonry anchors for solid fixation. Our specialist will verify wall thickness and determine the best integration method — recessed into masonry or edge-trim profile — for optimal fit.