Reiitettyjä

Reiitettyjä is a Finnish term used to describe objects, materials, or surfaces that have been perforated, meaning they contain holes or cutouts. The word is the plural form of the past participle reiitetty, derived from the verb reiittää, which means to perforate. In practice, reiitettyjä describes items whose perforations have functional, aesthetic, or structural purposes.

Perforation is typically achieved through punching, laser cutting, or chemical etching, depending on the material and the required precision. Common base materials include metal sheets (such as steel or aluminum), plastics, cardboard or paper, and fabrics. Hole patterns can vary widely, including circular, square, or hexagonal shapes, with different hole diameters and pitches (spacing). The choice of pattern affects properties like weight, strength, airflow, light diffusion, and acoustic performance.

Applications of reiitettyjä materials are diverse. In architecture and interior design, perforated panels and screens provide visual interest while enabling light control and ventilation. In acoustics, perforated panels with absorptive cavities behind them are used to manage reverberation and sound quality. In filtration and screening, perforated plates act as screens that separate materials by size. Perforated materials also appear in packaging, consumer products, and various industrial components where ventilation, drainage, or decorative effects are desired.

Manufacturing considerations include balancing weight reduction with mechanical strength, ensuring durability and corrosion resistance for metal parts, and selecting appropriate finishes such as coatings or anodizing. The term reiitettyjä thus encompasses a wide range of perforated materials used across industries, reflecting both functional and design-driven applications. See also reiitys and reiitetty surface for related concepts.