manufacture and install.
A curved grille requires additional bending and fabrication, which can make it more complicated to produce.
If a building does not need the extra space or decorative appearance, a simple straight grille may be more practical.
Curved designs are generally chosen when the additional function or appearance is considered worthwhile.
The Historical Side of Metal Window Grilles
Decorative metal window grilles have a long history in architecture.
Before modern security systems became common, metal bars and grilles were an important way to protect windows and doors.
Over
