Determining the right window sizes for your home can be a daunting task. With so many options to choose from, it’s easy to feel overwhelmed. Knowing the standard window dimensions can help simplify the process and ensure your new windows are sized appropriately for each room.
Common Factors That Determine Window Sizes
When selecting window sizes, there are a few key factors to consider:
Room Dimensions
The size of the room will dictate how large your windows can be. Large windows help create an open, airy feel, while smaller windows are better suited to more compact spaces. Measure the room to find the maximum width a window could span.
Use of Room
Think about how the room will be used. Rooms where you want more natural light, like kitchens, family rooms, and bedrooms, are good candidates for larger windows. Smaller windows may be better for bathrooms, laundry rooms, and formal dining rooms where privacy is more important.
Window Location
The placement of the window on an exterior wall impacts size options. Windows centered on a wall have more flexibility than those off to one side. Consider the layout when picking sizes.
Design and Style
The overall aesthetic you want will factor in as well. Do you prefer lots of large windows or smaller, more traditional styles? Your design tastes should guide what dimensions you choose.
Budget
Window costs will rise along with their size. Setting a budget will help narrow down size options to affordable choices. Make sure to account for labor costs as well, not just the window unit price.
Standard Window Widths
Window widths generally come in even increments. Here are some of the most common standard widths:
- 18 inches
- 24 inches
- 30 inches
- 36 inches
- 48 inches
- 60 inches
18-inch windows are good for tight spaces like bathrooms or as accent windows. 24 to 36 inches are frequently used in bedrooms, dens, and dining rooms. Larger windows 48 inches and up work well as picture windows in living rooms and main rooms.
When determining width, think about the maximum space available on the wall and aim to fill it evenly. Centered windows with equal space on either side tend to look most balanced.
Standard Window Heights
Like widths, standard window heights are available in set increments but have a wider range of options:
- 18 inches
- 24 inches
- 30 inches
- 36 inches
- 48 inches
- 54 inches
- 60 inches
- 72 inches
Shorter heights like 18 or 24 inches are common above kitchen sinks or in bathrooms. For most living spaces like bedrooms and great rooms, window heights between 30 and 72 inches are typical.
Aim for windows to be at least one half to two-thirds the height of your wall for good proportion. Floor to ceiling windows are also popular options today, especially in modern homes.
Typical Window Size by Room
While you can ultimately customize windows to your needs, here are some typical size standards for different rooms:
Kitchen
- Above sink window: often 18-24 inches high x 36-48 inches wide
- Main kitchen windows: 30-36 inches high x 48-60 inches wide
Kitchens benefit from ample natural light, so larger windows are preferred. The sink window can be narrower but should match the height of your backsplash. Avoid wider windows over the sink that could interfere with upper cabinets.
Living and Family Rooms
- Main windows: 48-72 inches high x 48-120 inches wide
Large living room windows create an open, inviting feel. Picture windows, bay windows, and dual windows are common choices. Center large windows on the room’s focal wall if possible.
Bedrooms
- 30-36 inches high x 36-60 inches wide
Bedrooms don’t require enormous windows, as privacy is a consideration. Aim for at least one window no shorter than 30 inches for ample light. Match the width to the size of the wall.
Bathrooms
- 18-24 inches high x 18-36 inches wide
Smaller windows keep bathrooms private. Height depends on available wall space but favor taller over wider windows. Aim for windows not directly across from the shower or tub.
Dining Rooms
- 30-48 inches high x 36-60 inches wide
Formal dining rooms can have smaller, more ornate windows that add character. For open concept spaces, larger windows tie the dining area to main living areas.
Entryways
- 24-36 inches high x 18-36 inches wide
Near front doors, go for smaller windows but avoid anything shorter than 24 inches. Try placing higher up on the wall for privacy. Sidelight windows by doors are often 24-30 inches wide.
Specialty Window Types and Sizes
In addition to traditional double hung and casement styles, consider these specialty window options:
Bay Windows
- Width: 30-48 inches
- Height: typically matches room height
Bay windows project outward from the wall, creating space and expanding views. They have three sections – one large central window flanked by two narrower side windows angled at 30 or 45 degrees.
Corner Windows
- Width and height: typically 24-36 inches
Corner windows are installed at a 45 degree angle in a room’s corner to provide light and views in two directions. Smaller sizes allow them to fit well in any corner space.
Transom Windows
- Width: matches door or window below
- Height: typically 12-18 inches
Transom windows go above doors or other windows. They function as accent windows and are a classic architectural feature. Keep them short to allow light in while maintaining privacy.
Skylights
- Width and height: Usually between 24-48 inches wide
Skylights are windows installed horizontally on angled ceilings. Optimal size depends on roof space and desired light levels. Avoid massive skylights that can cause heat gain and glare.
Choosing the Right Window Sizes
When selecting windows, start by measuring each room’s dimensions, noting any size limitations.
Determine how much natural light you want and how much privacy is needed. Larger windows promote airy, open feelings but smaller ones may suit some spaces better.
Consider your overall style as well. Do you want expansive modern windows showcasing views? Or traditional, cozier ones with more framed glass?
Use the standard window size guide above to identify typical options for each room. Balance out sizes throughout the home, allowing larger statements in main rooms balanced with smaller accents elsewhere.
Consult with a window professional if you need help determining the optimal window plan. With an expert’s guidance and the right mix of window dimensions suited to your home, you can achieve the perfect balance of aesthetics, functionality, and comfort.
Frequently Asked Questions About Standard Window Sizes
What are the typical window sizes for a bedroom?
For bedrooms, typical window sizes range from 30-36 inches high by 36-60 inches wide. Larger windows can make rooms feel more open and airy, while smaller ones keep the room cozier.
What is the most common window width?
The most common standard window widths are 36 and 48 inches. 36-inch-wide windows work well centered on walls in smaller to medium-sized rooms. 48-inch widths allow for large picture windows in main living spaces.
What size should a kitchen window be?
Kitchen windows are often 30-36 inches high over the sink and 48-60 inches wide on the main walls to provide ample natural light. Limit sink windows to 18-24 inches wide so they don’t interfere with cabinets.
What is the best window height?
The ideal window height depends on the room but is typically at least one-half to two-thirds the height of the wall. Windows should be proportional to the wall and not appear too short. For most rooms, window heights between 48-72 inches tend to look balanced.
How big can a picture window be?
Picture windows can range anywhere from 48 inches to 12 feet or more in width. To find the optimal picture window size, measure the width of the wall and find a size that fills the space properly without appearing awkwardly large. A good general maximum is around 120 inches wide.
Are 60 inch windows too big?
60-inch window widths are on the larger side but can work well centered on a wide, open wall. Rooms with high ceilings can also accommodate 60-inch window heights. Just be sure to account for factors like furniture placement and make sure the scale feels appropriate for the room.
Should transom windows match doors?
It is common for transom windows to match the width of the door they are above. Matching widths helps them appear like a cohesive unit. However, this is not a strict rule – narrower transoms can also complement doors nicely. Standard transom height is typically 12-18 inches.
What size windows should I use in a bathroom?
Bathroom windows tend to be smaller for privacy. Standard sizes are often 18-24 inches high x 18-36 inches wide. Aim for the tallest width possible, at least 24 inches high, and avoid placing windows directly across from bathing areas.
How big should a basement window be?
For proper egress, basement windows need a minimum width of opening of 20 inches and a minimum height of 24 inches. Overall window size should be several inches larger to allow this clear opening. Standard basement window sizes are around 32 x 36 inches or larger.
What are casement window sizes?
Casement windows can come in a full range of standard width and height sizes, like 30 x 48 inches or 36 x 60 inches. Casements often come in narrower widths like 12, 16 or 18 inches for side windows. Specialty casement types like awning windows are often used for shorter heights like 15-30 inches.
Conclusion
Determining the right window sizes for your home involves assessing the dimensions of each room along with the desired aesthetics, functionality and your budget. Following standard window size guidelines can help ensure your new windows are well-proportioned and suited to the space. Work with an expert if needed to create a window layout that maximizes natural light in your rooms and enhances the beauty of your home. Carefully chosen window dimensions go a long way in creating attractive, comfortable spaces.