Window grills are an important part of many home designs, serving both functional and aesthetic purposes. Here are some popular window grill design trends and models:

Simple and Sleek: This trend features clean lines and minimalist designs, and is a popular choice for modern and contemporary homes.

Ornate and Decorative: This trend features intricate and elaborate designs, and is a popular choice for traditional and Victorian-style homes.

Wrought Iron: This model features classic wrought iron bars, and is a popular choice for traditional and Mediterranean-style homes.

Aluminum: This model features lightweight and durable aluminum bars, and is a popular choice for modern and contemporary homes.

Steel: This model features strong and sturdy steel bars, and is a popular choice for traditional and industrial-style homes.

Wood: This model features natural and warm wooden bars, and is a popular choice for rustic and cottage-style homes.

When choosing a window grill design, it's important to consider the style of your home, the level of security you need, and the amount of natural light you want to let in. With so many options available, you're sure to find a trend and model that meets your needs and enhances the look of your home.