Standard Bed Dimensions And Suitable Room Size Guideline

By Measurement Of TeamILast update - Apr 12, 2023I8 Min Read
Partial view of a bedroom with a luxurious bed and night stand


There are multiple factors to consider when selecting your new bed. One of them is the bed size. Getting the ideal fit without being able to physically place it is one of the challenges of online mattress shopping. That is why you must be well familiar with the various sizes and varieties of beds. This guide will help you to choose the right size bed for your room, as well as give you ideas on standard bed sizes and suitable room sizes to fit those beds.

Let’s start with the different types of beds that are commonly known.

Different Types of Beds

Depending on the size, beds are practically divided into four different types: twin, full, queen, and king-size beds. Here are some popular types of beds in the US:

  • Standard King Size Bed
  • California King Size  Bed
  • Queen Size Bed
  • Full-Size Bed (double)
  • Twin Size Bed (Single)
  • Twin XL Size Bed
  • Bunk Bed
  • Crib

Dimensions of beds in the USA

Similar to the many styles and sizes of beds that are available, the average bedroom sizes in America vary greatly. So, it is crucial to be aware of the bed's dimensions since it also needs to fit into your bedroom.

Photo by on Pexels

Here in this section, I will discuss all the different types of beds with their dimensions and suitable room size to fit in.

King Size Bed Dimensions

Photo by Curtis Adams on Pexels

The standard king size bed dimensions are 76 inches by 80 inches. This means it will take up all the floor space in your bedroom. King-size beds are available in two sizes: the standard version and the California king.

Suitable Room Size: Minimum recommended room size is 12 feet by 12 feet. However, these beds also work well in spaces as small as 10 feet by 12 feet.

California King Size Bed Dimensions

Photo by Curtis Adams on Pexels

The standard dimensions of a California king-size bed are 72 inches by 84 inches. It is one of the longest bed sizes available among the others. It is 4 inches narrower than the king-size beds.

Suitable Room Size: These beds are ideal for larger rooms. Mostly suitable room size is 12 feet by 12 feet.

Queen Size Bed Dimensions

Photo by Antony Trivet on Pexels

The standard queen size bed dimensions are 60 by 80 inches (5 feet by 6.6 feet). Though some manufacturers make queen-sized beds that are 6 feet by 10 feet.

These are considered standard sizes and have been widely accepted as the standard since they were introduced in the 1950s.

Suitable Room Size: The minimum size bedroom needed to fit a standard queen size bed comfortably is 10 feet by 11 feet.

Twin Bed Dimensions

Photo by Max Rahubovskiy on Pexels

A twin-size bed is the smallest standard-size bed with small bed frame dimensions. A twin bed generally measures 38 inches wide by 75 inches long (3.25 feet by 6.25 feet). It is great for kids and single sleepers.

Twin beds and Single beds are sometimes used interchangeably. These beds fit in a corner of a room of average size while still leaving enough room for movement.

Suitable Room Size: Any room that measures at least 8 feet by 10 feet will be suitable for a twin bed. 

Twin XL Bed Dimensions

Photo by My Walking Diary on Pexels

A twin XL size bed offers 5 inches of extra length than a regular twin size bed. Typically, a twin XL bed is 38 inches broad by 80 inches long. It’s a suitable choice for growing children and taller individuals.

Suitable Room Size: Room with dimensions of 9 feet 6 inches by 10 feet 6 inches are mostly suitable for these beds.

Full-Size Bed Dimensions

Photo by İbrahim on Pexels

Full-size beds are also known as double beds. Full-size beds measure 54 inches wide by 75 inches long (4.5 feet by 6.25 feet). These are perfect for teenagers who have outgrown twin beds and adults living alone.

Suitable Room Size: Mostly suitable for 9 feet by 10 feet bedrooms.

Bunk Bed Dimensions

Photo by Curtis Adams on Pexels

A dream bed for most kids. Commonly, the standard size for bunk beds is 30 inches in width and 72 inches in length (2.5 feet by 6 feet). The height of the beds is also a factor here. So the bedroom's ceiling height is another factor you need to consider.

Suitable Room Size: These fit well in a standard 8 feet by 10 feet room or even a smaller room.


Photo by Sven Brandsma on Unsplash

Cribs are mainly for toddlers. This is the smallest bed size available. The standard size is about 52" in length and 28" in width. It can have a height ranging from 32"-44".

Suitable Room Size: Cribs can fit in any bedroom. You can keep it in your primary bedroom or have it in a separate nursery.

Standard Bed Size Chart

Here is a quick overview of all types of bed dimensions in the US in the following chart:

Bed TypeDimension in inches(Length X Width)Dimension in feet(Length X Width)Dimension in cm(Length X Width)
King76" x 80"6.33' x 6.67'193 x 203.5 cm
California King Size72" x 84"6' x 7'183 x 213.5 cm
Queen60" x 80"5' x 6.67'152.5 x 203.5 cm
Twin38" x 75"3.17' x  6.25'96.5 x 190.5 cm
Twin XL38" x 80"3.17' x 6.67'96.5 x 203.5 cm
Full-Size54" x 75"4.50' x  6.25'137.5 x 190.5 cm
Bunk30" x 72"2.5'  x 6.5'76.5 x 183 cm
Crib52" x 28"4.33' x 2.33'132 x 71.5 cm

Suitable Room Size for Different Bed Chart

These suitable room size let's you know the minimum room size, in which you can place a bed comfortably. You can also choose a smaller size room at times. But in that case you will have to give up on comfort and accessibility. Well, as you can guess, rooms larger than the mentioned ones will easily accommodate the bed.

Bed TypeSuitable Room SizeSuitable Type of Room
King12' x  12'Standard kids' bedroom, large guest bedroom, master bedroom
California King Size12' x 12'Standard kids' bedroom, large guest bedroom, master bedroom
Queen10' x 11'Small kids' bedroom, standard guest bedroom, master bedroom
Twin8' x 10'Any standard bedroom
Twin XL9.5' x 10.5'Any standard bedroom
Full-Size9' x 10'Any standard bedroom
Bunk8' x 10'Any standard bedroom
Crib-Any standard primary bedroom

Dimensions in Europe and UK

Bedrooms are not one-size-fits-all, and they can vary widely in size. So are the bed dimensions. And, it varies from country to country as well. For example, the standard king-size bed dimensions in the United States will be not the same as those in European countries.

In the United States, there is mainly twin, full, queen, and king beds. While in the UK and other European countries, the standard bed sizes have similar names including single, double, king size, and super king size with different dimensions.

Let’s have a quick look at the dimensions of different beds in the UK and Europe:

Bed TypeSize in EuropeSize in UK
Single90 cm x 200 cm (36“x78“)90 cm x 190 cm (36“x78“)
Double140 x 200 cm (55“x78“)135 cm x 190 cm (54“x 75“)
King Size160 x 200 cm (63“x 78“)150 cm x 200 cm (60“x 78“)
Super King Size180 x 200 cm (72“x 78“)180 cm x 200 cm (72“x 78“)

Why Do Bed Sizes Differ in Europe and USA?

Many factors affect the size of a bed. The height, width, and length of a bed can vary depending on the country you live in. It may depend on culture, common bedroom sizes in different countries, or the heights or nature of the individuals.

Photo by Pexels on Pixabay

A reason could be the height differences. According to this article by The New Yorker, Europeans tend to be taller than Americans. Therefore, the common length of beds in Europe is slightly larger than those in America.

How To Choose The Right Bed Size For Yourself?

There are many things you should consider when choosing the right bed size for yourself or your family. Many factors can affect your decision. These mainly include the following:

Your height: Firstly, you need to know your height. Because if you are taller than average, then you might need a bigger bed. For example, queen bed or Twin XL beds are suitable for taller people.

Size of your room: With so many options available, you’ll have to consider your room’s size to the common sizes of beds. If you have a small bedroom, a single bed may be all that’s needed. If there isn’t enough space for both a full and twin bed, then consider buying two twin beds instead.

Available space: The amount of space available for your bed will influence the type of bed you buy. Surely your bed will not be the only piece of furniture in your bedroom. You might consider the spaces between other furniture before buying your bed.

Users: This one is probably the most critical factor to be considered while selecting the perfect bed size. If you do not share a bed with anyone, then a queen bed or full-size bed would likely be the most suitable for you.

But if you have a baby, then consider whether they share the same bed as you. If there is only one bed in the house, then it should be big enough for everyone! A California king-size or standard king-size bed would be a better choice.

Location of the bedroom: Finally, think about where your bedroom will be located! For example, if the bed is for a bedroom in the attic, you probably cannot place a bunk bed there.


Knowing standard bed sizes can help you make the perfect bedroom you’ve wanted. With so many different standards, it is important to fing the right bed size for you. Whether it’s a smaller room or bigger, for a single person or couples or kids, choosing the right bed will help you manage the space you have efficiently.