Grid Options for Replacement Windows

When it comes to choosing replacement windows, the grid options can have a significant impact on the overall look of your home. Window grids, also known as mutins, are the decorative pieces that divide the glass panes of a window. In this article, we will explore the different types of grids available and the factors to consider when choosing them.

Understanding Window Grids

Before we delve into the different grid options, it is important to understand what window grids are and their purpose. Window grids were once an essential element of window design, used to support the weight of the glass panes. Today, they are purely decorative and serve to enhance the style of a window and complement the architecture of the house.

What are Window Grids?

Window grids are interlocking strips of material mounted over the glass panes of a window to create individual panes within a single unit. They can be made from various materials such as wood, vinyl, aluminum, or fiberglass. The placement of the grids can vary, as can the size, shape, and style of the grids themselves. Window grids can be customized to fit the specific needs of your home and can be designed to match the style of your house.

Window grids are not only decorative but also functional. They can provide additional insulation and help to reduce energy costs by minimizing heat loss during the winter months. Additionally, they can help to reduce the amount of sunlight that enters a room, which can be beneficial during the hot summer months.

Benefits of Window Grids

Window grids can add value to your home by enhancing its aesthetic appeal. They can also create a sense of history and elegance by mimicking the traditional, divided-pane look of old-fashioned windows. Additionally, grids can break up large glass expanses, providing privacy or reducing glare and heat gain during the hot summer months.

Window grids are available in a variety of styles, including colonial, prairie, and diamond. Colonial grids are the most popular style and consist of a grid pattern that creates a series of squares on the window. Prairie grids are similar to colonial grids but have a larger central square. Diamond grids create a diamond-shaped pattern on the window and are often used in more modern homes.

Types of Window Grids

Window grids come in several types, including:

  • Internal grids: these grids are installed between the window glass. Internal grids are convenient because dust and debris does not build up on the grids, making the windows easier to clean. Internal grids are popular today because they’re significantly less expensive than true divided lites and simulated divided lites, which allows homeowners to achieve a traditional exterior at a lower price..
  • Surface-mounted grids: these snap onto the exterior of the windowpane and are the most common type. They are available in a variety of colors and can be easily removed for cleaning.
  • Simulated divided lites: also known as SDLs, these grids are installed between the panes of glass and create the appearance of multiple glass panes. They are a popular option for homeowners who want the look of traditional divided panes without the maintenance.
  • True divided lites: these grids are made up of individual glass panes separated by muntins, giving an authentic, historical appearance. They are often used in historic homes or in homes that are designed to look traditional.

When choosing a type of window grid, it is important to consider the style of your home, your budget, and your personal preferences. Surface-mounted grids are the most affordable option, while true divided lites are the most expensive. Simulated divided lites offer a good compromise between cost and appearance.

Overall, window grids are a great way to add style and character to your home while also providing functional benefits. With so many options available, you are sure to find a grid style that complements your home’s architecture and enhances its overall aesthetic appeal.


Factors to Consider When Choosing Grids for Replacement Windows

Choosing the right grid for your replacement windows can be a daunting task. When making your decision, consider the following factors:

Window Style

Most window styles can accommodate grids; however, some styles, such as casement or picture windows, may limit your options. Take into consideration the window style when selecting the type and size of the grid.

For example, if you have a bay window, you may want to consider a grid pattern that complements the window’s curves. On the other hand, if you have a double-hung window, you may want to consider a grid pattern that accentuates the window’s vertical lines.

Architectural Design

The architecture of your home should play a vital role in selecting the grid pattern. For instance, a colonial-style home would require a different grid pattern than a contemporary-style home.

Consider the overall aesthetic of your home when choosing the grid pattern. If you have a traditional-style home, you may want to opt for a grid pattern that is more conservative and classic. However, if you have a modern-style home, you may want to choose a grid pattern that is more bold and geometric.

Energy Efficiency

Grids that cover more surface area of the window can reduce the window’s efficiency by blocking out natural light, airflow or allowing heat to escape. Consider the usage of your windows when deciding on the number and size of the grid, as it can affect the energy efficiency of your home.

For example, if you live in a colder climate, you may want to consider a grid pattern that allows for more natural light to enter your home, as this can help to warm up your space. On the other hand, if you live in a warmer climate, you may want to consider a grid pattern that allows for more airflow, as this can help to cool down your space.

Maintenance Requirements

Certain grid styles can be more challenging to clean than others. Consider vinyl grids, which can be easily cleaned with a damp cloth, giving them an edge over wood or aluminum grids, which require more upkeep.

Additionally, if you have young children or pets, you may want to consider a grid pattern that is less likely to collect dust or dirt, as this can make cleaning more difficult.


Grids can vary in price depending on the material, style, and the number of panes. Consider your budget when choosing the perfect grid for your replacement windows.

Remember, while it may be tempting to opt for a less expensive grid pattern, it’s important to consider the long-term cost savings of an energy-efficient grid pattern. Investing in a more expensive grid pattern now can save you money on your energy bills in the future.


Popular Grid Patterns for Replacement Windows

When it comes to selecting the perfect style for your home, there are various grid patterns to choose from. Grid patterns are an excellent way to add character and style to your windows. They can enhance the overall look of your home and complement its architectural style. Here are some of the most popular grid patterns.

Colonial Grids

Colonial grids are a classic and symmetrical pattern that divides the windowpane into equal-sized squares. They are a popular choice for traditional architectural styles, such as colonial, Georgian, and Federal. The colonial grid pattern is perfect for adding a touch of elegance and sophistication to your home.

Prairie Grids

Prairie-style grids are a popular choice for modern or contemporary homes. They create a pattern of smaller squares in the center of the window, surrounded by larger squares at the perimeter. This pattern is inspired by the designs of architect Frank Lloyd Wright and is characterized by its clean and simple lines.

Diamond Grids

Diamond grids create a diamond shape in the center of a divided light window for a unique and classic look. They are a popular choice for adding a touch of elegance and sophistication to your home. Diamond grids can be combined with other grid patterns for a more custom and intricate pattern.

Craftsman Grids

Craftsman grids are a variation of the prairie-style grid. They feature smaller squares around the perimeter and larger grid squares in the middle. Craftsman grids are a popular choice for craftsman-style homes, which are characterized by their simple and functional design.

Custom Grid Designs

If you want a more personalized look, custom grid designs can be created to suit your style and architecture. They can be created in different shapes, styles, or materials to provide a unique touch to your replacement windows. Custom grid designs are a great way to add a personal touch to your home and make it stand out from the rest.

When selecting a grid pattern for your replacement windows, it’s essential to consider the architectural style of your home. You want to choose a pattern that complements your home’s design and enhances its overall look. With so many grid patterns to choose from, you’re sure to find one that’s perfect for your home.



Choosing the perfect grid for your replacement windows can be time-consuming, but taking into consideration the factors mentioned can help you pick the right style for your home. With various choices widely available on the market, it’s possible to find the perfect one to suit your style, architecture, and budget.

Call us at 214-399-9592 for pricing and availability.