Bookshelf Dimensions: What Are The Standard Sizes?

Last Updated on January 12, 2023 by Jason Nguyen

Do you need to know the dimensions of a bookcase to determine if it will fit in your space? Are you unsure how to measure for a bookshelf? If so, you have come to the right place!

In this blog post, we will provide a comprehensive guide on measuring for and selecting the perfect bookshelf. We will also provide dimensions for some popular bookcase styles. So, whether you are looking for a built-in bookcase or freestanding unit, read on for all the information you need!

What Are The Standard Bookshelf Dimensions?

The standard dimensions for a bookshelf vary depending on the size and style of shelf you are looking for.

For a basic, rectangular shelf, common dimensions are between 24 to 36 inches in height, 12 to 16 inches in depth, and 24 to 48 inches in width. This type of bookshelf typically has four shelves with adjustable heights.

For a more traditional-style bookshelf with an arch or crown moulding on the top and/or bottom, common dimensions are 36 to 48 inches in height, 12 to 16 inches in depth, and 24 to 48 inches in width. This type of bookshelf usually has five shelves with adjustable heights.

If you are looking for a tall, built-in bookshelf with multiple shelves, common dimensions are 84 to 96 inches in height, 12 to 16 inches in depth, and 24 to 48 inches in width. This type of bookshelf may have as many as nine adjustable shelves.

Standard Bookshelf Width.

The standard width for a bookshelf depends on the type of shelf you have. A typical ready-made bookcase is usually between 24 and 36 inches in width.

If you’re building your own bookshelf, the minimum width should be at least 15 to 20 inches depending on the size of your room and what you plan to store on it.

Standard Bookshelf Height.

Standard bookshelf height is typically between 30 and 36 inches. Most bookcases are designed to fit standard 8-foot ceilings and measure 84 inches high. Taller shelves can be custom made, while shorter shelves may be available as a special order.

Many bookcases also come with adjustable shelving so you can customize the height of each shelf according to your needs. Some manufacturers also offer bookcases in different widths, depths and styles.

When considering the height of your bookshelf, take into account the heights of objects you plan to store or display on the shelves. Taller shelves are better for displaying sculptures and vases; shorter shelves are ideal for storing books and other paper items. If you plan to store a mix of items, adjust the height and size of each shelf accordingly.

Standard Bookshelf Depth.

The standard depth of a bookshelf typically ranges from 10 inches to 12 inches. The standard depth will vary depending on the size of the shelf and what type it is, such as an open-backed or closed-backed design.

If you are looking for a shelf that can hold large items, then you may want to consider a larger depth. If your goal is to keep the shelf looking neat and organized, then a smaller depth may be best.

Additionally, the material of the shelf can also affect its depth. For example, metal shelves tend to have a shallower depth than wooden or plastic shelves.

Standard Bookshelf Shelf Spacing.

Most bookshelves have standard shelf spacing, with each shelf being about 12 inches apart. This allows for ample room to store both large and small items on the shelves. Additionally, this spacing is designed to give the bookshelf a more orderly look and feel, as items will not be jumbled together in an unorganized fashion.

It is important to measure the exact dimensions of your shelves before purchasing books or other materials, to ensure that all items will fit properly.

If you are looking for more customized shelf spacing, there are many different adjustable shelves available on the market. These allow you to customize the size and spacing of each shelf to suit your specific storage needs.

Standard Bookshelf Dimensions By Number Of Shelves.

Two-Shelf Bookshelf Dimensions.

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A two-shelf bookshelf typically consists of a top shelf that is between 8 and 10 inches deep, the bottom shelf being slightly deeper at anywhere from 9 to 12 inches. The height of the shelves can vary from 24 to 48 inches in most cases.

If you are looking for extra storage, you might consider a three-shelf unit which typically offers a middle shelf between 10 and 12 inches deep. The top and bottom shelves usually measure 8-10 inches in depth, with the total height of the unit ranging from 36 to 78 inches.

Three-Shelf Bookshelf Dimensions.

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The dimensions and functions of a three-shelf bookshelf are determined by its size. The standard height is usually between 30 to 48 inches, while the width can range from 24 to 36 inches and the depth will typically measure 12 to 17 inches.

The top shelf is often used for larger items such as coffee table books or art pieces, while the two lower shelves can accommodate regular-sized books and magazines.

Four-Shelf Bookshelf Dimensions.

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A four-shelf bookshelf typically ranges in size from 24 to 48 inches wide, 12 to 16 inches deep and 48 to 72 inches tall.

Depending on the model, the shelves may be adjustable or fixed at different heights. It is important to measure the available space before purchasing a four-shelf bookshelf.

Five-Shelf Bookshelf Dimensions.

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For those that need more storage space, a five-shelf bookshelf is an ideal solution. The standard dimensions for a five-shelf bookshelf are 18″ deep x 36″ wide x 72″ tall. Each shelf should have at least 8″ of height clearance to fit most books comfortably.

A good rule of thumb when selecting bookshelves is to choose ones that are slightly deeper and wider than your average book size.

This will ensure enough space for larger volumes, as well as give you flexibility when arranging the shelves. Additionally, sturdy construction materials like wood or metal should be chosen for maximum durability.

Bookshelf height between shelves.

If you have questions about the ideal height between shelves, it’s important to consider what items you plan to store in your bookshelf. For larger items such as file folders and binders, a taller shelf height is recommended; for smaller items such as paperbacks or magazines, a shorter shelf height is best.

Generally speaking, most bookshelves have a shelf height of between 8-12 inches, but this can vary depending on the overall size of the bookshelf. For instance, a large bookcase may have taller shelves to accommodate larger items, while a shorter bookcase may have smaller shelves for storing paperbacks or magazines.

As you plan your bookshelf design, be sure to consider the items you plan to store and adjust the shelf heights accordingly. This will help create optimal storage in your bookshelf and ensure that everything fits nicely. With a little bit of thought and planning, you can design a bookshelf that meets all your needs!

Billy bookshelf dimensions.

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The Billy bookshelf is an iconic piece of furniture that has been around since the 1940s. This classic design from IKEA can be found in many homes around the world and it offers a range of practical storage solutions to fit any space.

The standard Billy bookshelf measures 80 cm wide, 28 cm deep and 202 cm high. The shelves are adjustable and can be moved up or down as needed, allowing you to customize the shelf height according to your needs. Each shelf measures 26 cm deep, providing plenty of space for books, magazines and other items.

Library bookshelf dimensions.

When it comes to library bookshelves, the standard dimensions vary depending on the type of shelving being used. For single-sided shelves, the most common dimensions are 24 inches deep by 36 inches wide with a height between 6 and 8 feet.

Double-sided shelves usually measure 48 inches in depth but can be customized to larger sizes as needed. The height of double-sided shelves can range from 6 to 10 feet, depending on the size of the library and needs.

Standard built-in bookshelf dimensions.

The size of the shelves on a built-in bookshelf are typically determined by the size of the wall or room in which it is being installed. This means that standard shelf dimensions can vary greatly depending on what type of space they are being placed in.

Generally speaking, most built-in bookshelves have adjustable shelving, allowing them to fit into tight spaces.

The most common shelf depths for built-in bookshelves range from 10” to 14”, however custom shelves can easily be built deeper or shallower depending on the size of the space and how much storage you need.

The height of the shelf should also be taken into consideration when deciding what depth works best for you.

When it comes to shelf widths, the average built-in bookshelf is usually between 10” and 20” wide with most shelves falling somewhere in the middle of that range.

If you need more storage space consider building two or more shelves side by side instead of one larger shelf. The number of bookshelves needed will depend on how much storage you need and how big the room or wall is.

Tree bookshelf dimensions.

Tree bookshelves typically measure a bit higher than standard bookshelves, with heights from 5-9 feet and widths from 4-8 feet. The shelves provide ample room for book storage and also have the added benefit of bringing some extra height to the room.

Tree bookshelves are also great for displaying decorative items, such as plants and sculptures. They can also be customized with various finishes and colors to match any decor.

Coffin bookshelf dimensions.

A coffin bookshelf is a unique style of bookcase that features a sleek and modern design. This type of bookcase typically has two sides – an open side with shelves to display your favorite books, and a closed side to store additional items.

The dimensions of these types of bookcases vary depending on the manufacturer and material used. Generally speaking, the average coffin bookshelf measures around 36 inches in width, 12-14 inches in depth, and 48-60 inches in height. The shelves usually measure around 10-12 inches deep.

The dimensions of a coffin bookshelf can be adjusted to fit your space needs. If you don’t need the full depth of 12-14 inches, some manufacturers offer a shallower version with shelves that measure around 8-10 inches deep.

This type of bookcase is also available in different heights, so you can find one to fit your room’s ceiling height. Some models even feature adjustable shelving – allowing you to customize the dimensions as needed.

Corner Bookshelf Dimensions.

Corner bookshelves are growing in popularity for their ability to make the best use of space. Corner bookshelves come in a variety of sizes and shapes, making it easy to find one that fits perfectly into your room’s design.

Standard corner bookshelf dimensions range from 18 inches wide by 18 inches deep up to 36 inches wide by 24 inches deep.

Small bookshelf dimensions.

The size of small bookshelves can vary greatly depending on the type, style, and design. For a basic shelf, the standard size is typically between 12 to 24 inches wide, 7 to 14 inches deep, and 30 to 48 inches tall.

A narrow bookcase will be narrower in width and depth but of similar height. Wall-mounted shelves are typically 18 to 36 inches wide, 7 to 14 inches deep, and 6 to 12 inches tall.

Cube bookcases offer more flexibility with their modular design but average between 24 to 36 inches wide and tall and 12 to 15 inches deep.

Bookshelf speaker dimensions.

Bookshelf speakers come in a variety of sizes, making it easy to find the right fit for your space. Generally speaking, bookshelf speaker dimensions vary between 8 and 19 inches in height, 6 and 15 inches in width, and 6 and 10 inches in depth.

Depending on the model, some bookshelf speakers also offer separate stands to place them on, which add an additional 8 inches or so of height.

IKEA Bookshelf Dimensions.

When it comes to selecting the right bookshelf for your space, one of the most important considerations is size.

Different rooms have different needs, so it’s important to measure your space and find a bookshelf that fits. IKEA offers several bookcases in a variety of sizes, so you can find an option that fits your space perfectly.

The Billy bookcase is one of IKEA’s most popular models and its sizes range from 40x28x202 cm to 80x30x202 cm. The expedit bookcase comes in a range of sizes as well, ranging from 47x31x137 cm to 59x31x79 cm.

For a smaller space, consider the Kallax bookcase that is available in sizes from 30x30x147 cm to 80x80x147 cm.

For larger spaces or for those who need more storage options, IKEA also offers several large bookcases including the Hemnes and Elvarli models. The Hemnes range runs from 80x42x202 cm to 160x42x202 cm, while the Elvarli comes in sizes from 120x60x200 cm to 200x60x200 cm.

Bookshelf door dimensions.

The size of the door that covers the bookshelf can vary depending on the size of your bookcase. A standard full-sized bookshelf door is usually between 24” and 30” wide, while a standard half-sized bookshelf door typically ranges from 12” to 18” wide.

Make sure you measure the width of the door you are purchasing before making a purchase to ensure it will fit your bookcase.

Additionally, bookshelf doors come in various heights, with most ranging from 24” to 36” tall. Be sure to choose a door that is close to the height of your bookcase for the best look and fit.

Bookshelf shelf dimensions.

When choosing a bookshelf, it’s important to consider the size of the shelves. Bookshelf shelf dimensions can vary depending on what type of bookshelf you’re buying.

Standard bookcases usually have three shelves or four shelves with a height of anywhere from 12”-29” and widths between 18”-36”.

Corner bookcases have five shelves with a height between 28-37 inches and widths between 18”-36”. Shelves for built in bookshelves can be customized to fit your space and preferences.

Bookshelf aquarium dimensions.

If you’re looking for a unique way to display your fish, why not consider a bookshelf aquarium? These tanks have the same basic dimensions as regular rectangular aquariums, but are designed to fit into standard bookcase openings.

The most common sizes are either 24″x12″ or 36″x12″. Most models also come with a matching bookshelf cabinet that can be used to store food, supplies and decorations.

With this setup, you’ll have an eye-catching aquarium with plenty of storage space to keep it looking neat and organized.

What’s the difference between a bookcase and a bookshelf?

The terms “bookshelf” and “bookcase” are often used interchangeably, but they actually have different meanings. A bookshelf is a piece of furniture that typically has two to five shelves or compartments and is designed to store books horizontally.

It usually stands on the floor rather than attaching to the wall and may be open or covered in one or two doors.

On the other hand, bookcases typically have three to six shelves and attach to the wall. They can be larger than bookshelves, but they are usually narrower and shallower. Both pieces of furniture are useful for storing books and other items like decorative objects, knick-knacks and photos.

Bookcase dimensions.

The average bookcase comes in either a standard height or a double height. The width depends on the model and can range from 24 to 36 inches wide.

Standard-height bookcases are typically 72 or 74 inches tall, while double-height bookcases range from 76 to 84 inches in height. The depth of the shelf is usually 10 to 12 inches deep.

How wide can a bookshelf be?

The width of a bookshelf depends on the size and weight of the items you’re storing. If you plan to store heavy books, it’s best to opt for a wider shelf to better support their weight.

Generally speaking, most bookshelves range between 24-36 inches in width. Bookshelves that are at least 36 inches wide can comfortably hold up to 300 lbs of weight when properly secured to the wall.

If your bookshelf is unusually wide, it may be necessary to use two or more supports for extra stability. Additionally, if you plan to store heavier items such as large hardcover books, a wider shelf can provide greater support and prevent sagging.

How deep is a library bookshelf?

Standard dimensions vary, but generally single-sided shelves are 24 inches deep and double-sided shelves range from 48 to 60 inches. The widths and heights can also be customized depending on the size of the library and needs.

How wide is an Ikea Billy bookcase?

The width of an Ikea Billy bookcase varies, depending on the design. The standard size is 80 cm (31 1/2 inches) wide, but there are also wider designs available which measure up to 120 cm (47 1/4 inches). This makes it a great choice for larger bookshelves or those who need more storage space.

How tall should bookshelf shelves be?

This is an important question to consider when shopping for new shelves or building your own. Generally, the height of a bookshelf should be determined by the size and type of books that you plan on storing.

For smaller paperback and hardcover books, most standard shelves measure between 12 and 14 inches tall. This allows space for two rows of books side-by-side. For larger hardcover books and textbooks with thicker bindings, you may want to go with a shelf that is 15 or 16 inches tall. This provides extra space so that the items won’t be crowded on the shelf.

How high to hang two shelves?

When deciding how high to hang two shelves in a room, it is important to consider the size of the shelves and the room’s purpose. The height of your shelves should be based on either eye-level or what works best for the intended use of the room.

For example, if you are hanging shelves in an office space, they should be at a comfortable height for working and viewing documents. If the shelves are in a bedroom, they should be high enough to allow space under them for dressers or other furniture.

The general rule is that shelves should never be hung higher than 7 feet off the ground. However, if you are hanging shelves in a living room with high ceilings, it may be appropriate to hang them higher. It is best to hang the shelves at least 6-12 inches away from the ceiling for clearance.

How to measure bookshelf dimensions.

Measuring your bookshelf dimensions is one of the most important steps to take before you begin to shop for bookcases or even attempt to build them yourself. Knowing exactly how much space you have can help determine what size shelves and any other furniture will fit in the room.

When measuring your bookshelf, make sure to take into account any existing furniture that could interfere with the measurements. Start with the width, which is measured from the left to right wall of your room.

Measure up to the outside edge of any furniture that stands in the way. For measuring height, start by measuring from the floor all the way up to the ceiling. Again, account for any existing furniture that may be interrupting this measurement.

When measuring the depth of your shelves, it’s important to remember that this refers to the distance between the front and back walls. Measure from the wall all the way back to where you imagine the bookcase will stand. Make sure not to take into consideration any existing furniture at this point.


When it comes to choosing the right bookshelf dimensions, there are many factors to take into account. Size and shape matter depending on the space you have available and the size of your book collection.

Consider whether you would like a tall or wide shelf and measure out your space beforehand to make sure it fits comfortably in its intended spot.

You may also want to think about the material and style of the shelf, as well as the additional features such as adjustable shelves, for added convenience.