Have you ever walked through an old neighborhood and noticed window grills that curve outward instead of lying flat against the glass? At first glance, they might seem purely decorative, a charming flourish added by creative builders. Yet these curved designs, often called “potbellied window grills,” have a history rooted in practicality, safety, and even social life. Their story shows how simple architectural choices can shape everyday living.
Straight metal grills were once the standard solution for protecting homes in busy or warm regions where windows were kept open. They allowed light and air to flow in while keeping intruders out. But as cities grew denser, families saw new potential in their windows. By curving the grill outward, builders created a pocket of extra space — a small but meaningful extension that transformed a security feature into something multifunctional.
