The added space can be useful for flower boxes, small plants, or decorative items. In older homes, it may also provide a little more room near the window without removing the security barrier.
Curved bars can also make the exterior of a building look more decorative than simple straight metal bars. Different shapes and patterns are often chosen to match the architectural style of the home.
Their main purpose, however, remains security. A properly installed curved grille helps prevent unauthorized entry while combining protection with a more practical and attractive design.
