Bedroom Window Size (Dimensions Guide)

Here’s our bedroom window size design guide, including standard types of single, double-hung, picture, sliding, bay, awning, and casement dimensions for windows and measurement requirements.
Bedroom with sliding windows gray paint lampshade

One thing a prospective buyer or renter is looking for in a house or an apartment is whether or not its bedroom has windows, and you can’t blame them.

Windows not only promises a view of the outside; they also provide electricity-saving by allowing light to come in the room during the daytime and add to the overall aesthetic appeal as they make a room look bigger. 

This article will guide you through different window sizes and dimensions to help you decide what type and proportion they should be.

Standard Window Dimensions For Bedrooms

When you are looking to construct or revamp a home, the windows are an integral part. Usually, there are window sizes available ready-made; though they are not considered standard sizes, they are what builders or contractors typically use in their business. 

A window’s standard size is dependent on many factors, such as when the house was built or how proportionate it is to the house, to name a few. 

With that said, the most common window size is 24” x 36”. Standard bedroom window widths are 36”, 48”, and 60”. 

To develop a comprehensive list, we will list seven common bedroom window types and the usual size or dimensions they come in. 

Single or Double Hung Window

Single or Double hung window size

A single or double-hung style is one of the most popular, usually found in bedrooms, kitchens, and hallways. The main difference between the two is a double-hung window has two sashes (panels) that can both move up and down independently.

On the other hand, a single-hung style only has one moveable bottom sash. The conventional width for this style is anywhere between 24 to 48 inches

Picture Window

Picture window size

This window type is designed for maximum light coming into a home. They usually don’t open and can be found in different parts of the house, including bedrooms.

Most are ordered by custom sizing, but there are also some available ready-made on the market. The most common sizes have a width between 24 to 96 inches. Read our in-depth guide to picture windows here.

Sliding Window

Sliding window size

Often installed in bedrooms, kitchens, or basements — they are commonly much broader than they are tall. Sliding windows are also easier to install. They come in widths from 36 inches to 84 inches.

Bay Windows

Bay window size

Bay windows bring more light into a home and add aesthetic and architectural design to a house. They are usually more expensive than the other types, but they’re a worthy investment if you add in the aesthetics and added functionality. 

Bay windows usually come in sizes between 3 feet 6 inches to 10 feet and 6 inches

Casement Windows

Casement window size

Casement windows open from the side. Usually found in warmer places, they allow the breeze to enter the home. They are much more reliable than single or double-hung designs in this aspect and also much cheaper.

Casement windows usually have widths from 1 foot 2 inches to 2 feet and 11.5 inches

Awning Windows

Awning window size

Awning windows, similar to casements, provide excellent ventilation in a home. Their mechanism can be fully opened and tilted inwards.

They are also often used in coordination with other types, such as picture panes, as they can be opened even when it rains. These types have a width of 2 feet to 3 feet 10 inches

Custom Windows

Modern farmhouse bedroom with gray paint and custom window

Custom windows, as the name would suggest, are made to fit your house’s openings. These are types that can be customized to your exact preference. Order them in advance to meet your construction or renovation timeline. 

Standard Bedroom Window Height

Single or Double Hung Window

The conventional length for single or double-hung windows is between 36 to 72 inches

Picture Window

Picture styles can have a height as tall as 12 to 96 inches

Sliding Window 

Since sliders are broader, heights are usually a foot lower than the widths they come in. These types often have a height several inches less than the width.

For example, if you have a slider that is 84 inches wide, a common corresponding height might be around 60 inches. Sliding windows typically come with a height of 24 to 60 inches

Bay Windows

Bay windows are also broader than they are taller. Regular sizes that are not custom-made frequently fall between 3 feet to 6 feet and 6 inches tall. 

Casement Windows

Casement windows are the other way around, as they are most often taller than they are thicker. They usually come in height between 2 feet 5.5 inches to 6 feet 5.5 inches

Awning Windows

Awning Windows are also taller than they are thicker, usually with a height of 1 foot 8 inches to 7 feet 8 inches

Minimum Size for a Window in the Bedroom

Minimum window size

To be able to be considered a bedroom, a room should have a minimum of one window. Recent design and architectural trends gave rise to more oversized openings than usual, but some still opt for smaller windows.

The minimum standard bedroom window size is 24 inches by 36 inches. Many older houses still use this dimension. 

Window Requirements For Bedrooms

Building codes provide requirements for bedroom windows. Generally, it is the same from state to state. A bedroom should allocate 8 percent of its floor area to a window. In addition, it is required to be able to open halfway. 

Bedroom Egress Window Size

Egress window size

Egresses are emergency exits, and building codes require a house to have them for bedrooms not immediately connected outside on streets or front or back yards through a door.

It’s essential to consider adding egresses in case of accidental fire and whatnot when renovating or building your home. Egresses can be skylights, fire exits for apartments, but most commonly, they could be windows. 

Bedroom Egress Requirements

Bedroom windows should have the minimum egress requirement of at least 20 inches wide and 24 inches tall. It should have an opening of 5.7 square feet, according to ICCsafe.org, that is big enough for an average-size person to crawl in and out of, like firefighters. 

For safety purposes, bedroom windows should not be installed 44 inches or above a floor, but they should not be installed so low to avoid accidents of children climbing it. 

It’s also important to note that such egresses and windows should be ready and viable for opening without the aid of keys or other tools. 

For more related content, visit our article about standard window sizes here.

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