Polyurethane Round Door Arch and Keystone Design

The P1456D135VIC round arch is a premium polyurethane architectural element designed to elegantly frame wide passageways, doorways, or windows in both interior and exterior projects. Combining a classic circular form—one of the most prominent features of traditional architecture—with an ornate keystone at its apex, it adds structural character and depth to any space. From grand commercial projects to custom residential designs, this arch transforms ordinary openings into monumental architectural portals.

Engineered with a high-density structure of 150-220 kg/m³, this product offers the strength and durability of wood while remaining remarkably lightweight. This optimal density ensures excellent impact resistance and effortless handling during installation. With dimensions of 1750 mm in width, 971 mm in height, and 221 mm in depth, it perfectly fits standard and wide architectural spans. Its closed-cell structure boasts a water absorption rate of under 1%, permanently preventing swelling, shrinking, or warping in humid environments.

The smooth circular contours, stepped profile transitions, and the central acanthus-leaf motif keystone give this arch a striking sense of volume. The stepped lines create a beautiful play of light and shadow, enhancing the depth of the arch. This detailed surface design enlivens flat wall transitions, making it an exceptional focal point for classical facade designs and neoclassical interiors.

Offering a wide range of applications, this arch model is highly favored for villa entrances, hotel lobbies, restaurant halls, and spacious corridor transitions. When used as a window pediment in exterior applications, it lends a timeless, classical elegance to the building's facade. For outdoor installations, coating the surface with a high-quality, UV-resistant exterior paint is required to protect the material from weathering.

Developed as a superior alternative to heavy and fragile plaster, moisture-sensitive wood, or delicate polystyrene, this polyurethane arch is exceptionally easy to install. During installation, Polure Polfix adhesive should be applied to the dry surface, followed by mechanical fastening with screws. While the factory-applied primer prepares the surface for painting, applying an additional primer is optional and at the customer's discretion, as paint manufacturers may require their own primers for warranty purposes. Polure does not warrant applied paints.

Thanks to its long-lasting, maintenance-free structure, this decorative arch retains its pristine form for years. Resistant to rot, insects, and mold, it offers a major advantage for exterior facades and high-humidity areas. If needed, the surface can be easily sanded, filled, and repainted to refresh your decor.