How Big Is a Normal Bedroom? – Average Bedroom Size

Bedrooms come in many different shapes and dimensions, making it difficult to plan things like furnishing, flooring, painting, or just general decor. Of course, some general commonalities are similar to all bedrooms. This will naturally lead many to wonder, how big is a normal bedroom?

A normal bedroom is 132 sq ft (12 sq m) on average homes. This means the floor space has a dimensional measurement of 11.5 x 11.5 ft (3.5 x 3.5 m). The average home is one that is under 2,500 sq ft (232 sq m) in total. Larger homes will have larger bedrooms.

In this article, we will look at the various factors that go into sizing a bedroom and the things you need to keep in mind. From there, we will be able to provide the reader with an accurate measurement of what would be defined as a normal bedroom, so keep reading!

The Factors Involved With Sizing a Bedroom

Before we can answer the question of how big a normal bedroom is, we first have to define what exactly we mean when we use the word normal.

Bedrooms come in so many shapes and sizes.

There are master bedrooms, apartment bedrooms, guest bedrooms, mansion homes, cottage homes, etc. Still, we are strictly discussing size for this article’s purpose regarding the typical bedroom of a modest and moderate home.

The size of the bedrooms in a home will be largely dictated by the house’s size as a whole. Large houses will tend to have larger bedrooms.

The last point we will mention here is that to classify as a bedroom, the room must have a door and a window. While there are some exceptions to this, such as a basement or an attic bedroom, we are only dealing with a normal or typical bedroom.


The best way to arrive at a precise answer to how big a normal bedroom is, the single best approach is to collect data and average it out based on square footage.

Believe it or not, most bedrooms are dimensionally very similar in size, which makes our job of finding out a lot easier.

Length x Width

One of the ways in which room sizes commonly differ is that they may not all be perfectly square or rectangular and consist only of 90-degree angles.

Some rooms are a bit more unconventional and feature things like angular walls, doorways, and alcoves.

This may present a slightly misleading depiction of space if we simply assign a square footage number to the room size without mentioning or accounting for this factor.

To avoid any confusion, we will suppose that the bedroom in question is more or less rectangular and symmetrical for this article. This way, our dimensions will give the reader the clearest idea of what size is most common to a normal bedroom.

Ceiling Height/Type

The last factor we will talk about in this section is the variability of ceiling types and heights.

Although the ceiling structure of a bedroom is less important in the grand scheme of determining the size of a bedroom, it still warrants some clarifying explanation.

Ceilings come in many different types. Some are made from drywall, some from stucco, and some can be drop-ceilings with a space above it.

Moreover, some bedrooms have oddly shaped ceilings. Attic bedrooms come to mind here. Typically, bedrooms in the attic of a home will have a diagonal or triangular ceiling with a different height in different parts of the room.

Ceiling height can vary greatly from one bedroom to another. Some rooms are very high, while others have just enough headroom clearance that any less and you would have to duck to stand up.

Room size refers solely to floor space and does not account for anything regarding the ceiling or height. This is a consideration you will likely have to make on your own upon observation.

What Is the Average Bedroom Size?

Now that we have briefly touched on the various ways that bedrooms tend to differ from one another, we can answer how big a normal bedroom is with decisive confidence.

In the United States, the average bedroom of a typical modest family home measures 132 square feet.

Dimensionally, this works out to 11.5 x 11.5 feet in length and width.

This is more than enough space, in most cases, for a single person to lay out their belongings and arrange the room in such a way that it meets all their comfort needs.

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A 132 square foot-bedroom is also perfectly suitable for a twin or even queen-sized bed while still having enough room to move around and organize.

In the case of younger children, it may be possible to have two children sharing a bedroom that is 11.5 x 11.5 feet.

A typical master bedroom is roughly around 225 square feet in total. Each family home will feature a single master bedroom intended for two adults.

These numbers are founded on the assumption that the home is less than 2,500 square feet in total. This will be the case in most suburban areas.

The other assumption is that we are dealing with homes typical of the United States. Other countries may have different standards for what qualifies to them as a normal bedroom. Many homes in England, for example, have small rooms that are very condensed due to the populational congestion of the country.

In large metropolitan areas and major cities, houses tend to be slightly smaller for the same reason (proximity and population density) and, as such, have much smaller bedrooms.


In this article, we wanted to answer the question of how big a normal bedroom is.

To do this, we first had to define what a normal bedroom is by some objective measure.

A normal bedroom in the United States that is assumed to be square will have roughly 132 square feet in floor space.

This gives the occupant enough room for a queen-size bed while still allowing them some free space and amenities.

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