Picture Window.
Fixed Aluminium Glazing
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Glass as architecture.
A picture window is a fixed single pane of glass, framed as thinly as structurally possible. No opening mechanism, no mullions, no hardware , just glass. Used correctly, it becomes a framed view of the outside world: a garden, a city skyline, a tree, a horizon.
We fabricate picture windows using Cortizo’s structural aluminium frame, which can hold a single sheet of glass up to 4 metres wide and 500kg in weight. That is large enough to span an entire rear elevation of a standard London terrace without a single join. The effect is transformative.
Structural glass installation.
Because a picture window sits in a fixed structural frame, it has no opening sash to build around , so sightlines are the thinnest of any window we fit. 45mm frame visible from outside, typically less than 20mm from inside. On a rear extension, paired with a bifold or sliding door, it can be the quiet anchor of the whole elevation.
Specify it with solar control glass, low‑iron ultra‑clear glass, or heated glass for the very best performance. We handle the structural calculations, craning, and glazing in‑house.
Specifications
Cortizo Cor 70 Industrial fixed‑light structural frame. 70mm frame depth with reinforced corner brackets engineered for heavy glass loads up to 500kg. 32mm polyamide thermal break. Suitable for double or triple glazed warm‑edge units up to 52mm thick. Optional solar control, self‑cleaning, low‑iron, acoustic laminate, and fire‑rated glass specifications.
Standalone picture window or integrated with APX casement, tilt‑and‑turn, or flush opening vents within the same structural frame. Can be specified as floor‑to‑ceiling, corner‑joined (glass‑to‑glass silicone joint), or as a run of matched fixed lights across a facade.
Standard colour range: Black (RAL 9005), Anthracite Grey (RAL 7016), and White (RAL 9016). Bespoke finish: full RAL colour palette available on request, including textured, matte, satin, and dual-colour (different inside vs outside) options. Powder-coated to BS EN 12206-1 with 25-year colour-stability guarantee.
