Understanding Standard Window Sizes: A Guide to Common Window Sizes {{ currentPage ? currentPage.title : "" }}


Windows are an integral part of any structure. They provide natural light, ventilation, and can be a significant factor in the aesthetic appeal of a building. However, when it comes to choosing the right windows, size matters. In this blog post, we will discuss standard window sizes, why they are important, and the three most common WDMA you're likely to encounter.

Single-Hung Windows

Single-hung windows are a common choice for many homeowners due to their classic style and affordability. They have two sashes (the part of the window that holds the glass), but only the bottom one moves up and down. The standard sizes for single-hung windows range from 24 inches to 48 inches wide and 36 inches to 72 inches high. These sizes are versatile enough to fit in most residential structures without major modifications.

Double-Hung Windows

Double-hung windows are similar to single-hung windows, but both sashes can move up and down, offering better ventilation. Their standard sizes are slightly larger, typically ranging from 24 inches to 54 inches wide, and 36 inches to 84 inches high. This makes them a suitable choice for rooms that require larger windows for optimal light and air circulation, such as living rooms and master bedrooms.

Sliding Windows

Sliding windows, also known as gliders, move horizontally instead of vertically. They are often chosen for their modern look and ease of operation. The standard sizes for sliding windows vary widely, from 36 inches to 84 inches wide and 24 inches to 60 inches high. This wide range allows for greater customization to fit specific architectural designs and personal preferences.


Understanding standard window sizes can significantly simplify the process of choosing the right windows for your home or building project. While single-hung, double-hung, and sliding windows are some of the most common types, it's crucial to remember that window sizes can be customized to fit your specific needs. Always consider factors like the room's function, the architecture of your home, and the local climate when deciding on window sizes.

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