Mini Mudroom. Create this mini mudroom from IKEA Billy Bookcases and a bit of beadboard and trim. It costs not much and looks like custom built-ins! A super inexpensive DIY project. Get more details here.

DIY Stylish BILLY Built-in Cabinet

Make budget built-ins from IKEA bookshelves. Love the side panels with sconces. Get the tutorial here.

DIY Kitchen Island

This kitchen island is composed of an IKEA butcher block and three BILLY bookcases. You can also give the island a more custom look with moulding and beadboard on the side. See more details here.

DIY Library Wall

You will need four BILLY bookcases, good hardware and quality wood to make this gorgeous library wall at home. Get the tutorial here.

Another creative example of build-in bookcase

Check out the tutorials here.

DIY Pantry Made with Two IKEA BILLY Bookshelves

See morehere.

Mudroom Lockers

Organize your mudroom with Ikea bookcases. Make getting out the door in the morning that much easier! Get the tutorial here.

Add a BILLY bookshelf to the baby crib

See how they did it here.

Create a custom closet with BILLY bookshelves

Get detailed instructionssource

Place the BILLY bookcase on top of the chest of drawers

Then secure them to the wall to this custom and beautiful furniture that provides TONS of storage. Get the step-by-step instructions here.

Tutorial to Add Beveled Crown Molding on Billy Bookcase (Ikea)

This is an excellent storage solution for A’s bedroom. Besides the crown molding, the custom back panel allows you to pull in other colors or patterns. This takes a little bit more work, but it will make your bookcases look built in.source

Built-in bookcases

Here is one more example of built-in bookcases. It not only adds a ton of extra character and storage to the house, but they really can make a small house feel so much bigger! See more instructions here.

Beautiful IKEA BILLY Bookcases for Kids

Good transformation by painting the backs in green and adding molding for the plain BILLY bookcase. This is perfect for the playroom! source

Bookcases with Glass Doors

These X motif custom designed glass doors along with library lighting give these bookcases an inimitable look. It is a simple way to ensure that your interiors stand out from the crowd. See more here.

DIY Dollhouse with BILLY Bookcase

By adding a roof, chimney, wooden details, paint, fences, walls and even windows, the Billy Bookcase becomes a chic dollhouse for your little one. Learn how to make it here.

DIY arched bookshelves

See how to create DIY arched bookshelves with IKEA BILLY bookcases here.

DIY Gorgeous Home Bar Built from BILLY Bookcases

See more photos and details here.

Entertainment Stand in Living Room

Turn 3 BILLY bookcases from IKEA into an entertainment stand in the living room. Check out the full tutorial here.

IKEA BILLY Bookshelves Transformation

Simple and clever transformation of the IKEA BILLY bookshelves by modifing and adding trim and lighting. Get a custom look for the living room. Get the directions here

Built in Bookshelves with Window-seat

I love this clever design. It provides us more comfy with the window seats alone with the bookcase. Get the instructions here.

Castle Bed with Upper Play Deck

Castle bed with upper play deck using an IKEA Kura bed and two BILLY bookcases. See more at ikeahacker.net.

The Convertible BILLY Princess Row House

A perfect hack idea for your daughter’s room. See more details here.

Built-in Bookshelf Wall in Living Room

Create a built-in bookshelf wall in your living room by mixing and matching together IKEA Billy bookcases and Besta TV unit. See more here.

BILLY Bookcase as Kitchen Cupboards

A good solution to make your kitchen stuffs organized. source

Use a BILLY bookshelf to build an IKEA Arcade Game

Based on the tutorial, it wasn’t easy, but the result is awesome and worth. Check out the directions here.

Clever Shoe Storage with IKEA BILLY Bookcase

Get a more shoe storage by adding some BILLY extra shelves to the simple bookcase. Check out more instructions here.