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Why Are Muntins Common in Traditional Homes?

Muntins, also known as grilles or grids, were traditionally used to support glass panes of a window. They are offered in various styles, which can affect the cost, looks and maintenance needs of a window.

Why Are Muntins Common in Traditional Homes?

In this post, your local casement window provider, Renewal by Andersen® of Milwaukee discusses what muntins are.


In the late 1600s, muntins were widely used because they were necessary for a home’s structure. The exterior walls of older homes couldn’t support the weight of big windows. Muntins acted as support for the windows.

Today’s windows can be made with large glass pieces which didn’t need as much support. Still, many homeowners prefer the look of replacement windows with multiple panes.

Pros and Cons of Different Grille Types

  • Full Divided Light Grilles – Full divided light grilles copy the look of a true divided glass. Windows with these muntins are more efficient since they have fewer window edges. However, you can see that there’s nothing between the muntins if you look closely. They can also make it harder to clean your windows.

  • Between-the-Glass – Aluminum grilles are permanently installed between the panes when the windows are produced. This makes windows more authentic and easier to clean since there are no interruptions in the glass. The thing about this style is that the grille can be seen on the inside of the glass. Also, you can’t change the grille’s color if you wish to change your window trim color.

  • Interior Wood Grilles – Our hardwood grilles snap into the clips of the sash’s interior. They can be easily removed when you need to clean the glass. However, you can see from the outside that the window reflection isn’t interrupted like a real or simulated divided light window.

For stylish, durable and energy-efficient windows, choose Renewal by Andersen of Milwaukee. Our grilles are designed to be long-lasting and low-maintenance. We offer casement, double-hung, picture, specialty windows and more. Call us at (262) 522-3034 or fill in our online form to schedule a free consultation. We serve homeowners in Milwaukee, WI, and surrounding areas.

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