Super DIY Bench Window Seat Ikea Kallax Hack

Sharing all our tips and tricks of how we made this easy and awesome DIY Window Seat using a Ikea Kallax Hack Bookshelf as a Bench with step by step pictures. We made the Kallax window seat large enough so it could double as a bed for overnight guests with bookcases underneath to provide extra storage.

Sharing all our tips and tricks of how we made this easy and awesome DIY Window Seat using a Ikea Kallax Hack Bookshelf as a Bench with step by step pictures. We made this Kallax window seat large enough so it could double as a bed for overnight guests with bookcases underneath to provide extra storage.

DIY Bench Window Seat Ikea Kallax Hack

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Sharing all our tips and tricks of how we made this easy and awesome DIY Window Seat using a Ikea Kallax Hack Bookshelf as a Bench with step by step pictures.  We made the Kallax window seat large enough so it could double as a bed for overnight guests with bookcases underneath to provide extra storage. #ikea #kallaxhack #diybuiltins https://lehmanlane.net

Our DIY Bench Window Seat and Bookcases Before

Almost ten years ago, we created this DIY window seat with built in bookcases HERE and it was great.

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How to Build a Window Seat & Built in Bookcases

However, our youngest… who is now a TEENAGER?!!! said he wanted a more “grown up” bedroom.

In creating his more “grown up” bedroom, we decided to take down his built in bunkbed.

Unfortunately, no one was small enough to sleep up there anymore since every time you woke up someone would bump their head.

With the loss of the extra bed, we decided to make the former window seat larger so that it could double as an extra bed for sleepovers and when family was in town.

Sharing all our tips and tricks of how we made this easy and awesome DIY Window Seat using a Ikea Kallax Hack Bookshelf as a Bench with step by step pictures.  We made the Kallax window seat large enough so it could double as a bed for overnight guests with bookcases underneath to provide extra storage.

DIY Bench Window Seat Ikea Kallax Hack Size

Our DIY Ikea Kallax hack bench window seat is 95 inches wide by 19.25″ tall (not counting the cushion) and 26″ inches deep.

DIY Bench Window Seat Ikea Kallax Hack Supply List

DIY Bench Window Seat Ikea Kallax Hack Cost

We finished this awesome Ikea Kallax Hack DIY bench window seat just before we had guests for Thanksgiving weekend. Unfortunately, I can’t find all my receipts so this is just an estimate. In total the project cost us around $800 doing it ourselves minus the baskets underneath.

However, the most expensive piece of this Ikea Kallax Hack project were the 2 sets of outdoor cushions at just under $500. I could probably have made the cushions but honestly by the time we added up the cost of buying thick cushions and outdoor fabric (not counting the pillows it came with) it just didn’t seem worth it to us.

The actual Ikea Kallax Hack window seat bookcase bench was about $300 for the bookcases, wood and shiplap.

The baskets were an additional $150.

Bench Window Seat Ikea Kallax Hack Step by Step Instructions

Step ONE – Take Down the existing Built in Bookcases and Window Seat.

We tore down the old bookcases and window seat using some of the scrap wood to build the new bench window seat.

Sharing all our tips and tricks of how we made this easy and awesome DIY Window Seat using a Ikea Kallax Hack Bookshelf as a Bench with step by step pictures.  We made the Kallax window seat large enough so it could double as a bed for overnight guests with bookcases underneath to provide extra storage.

Step TWO – Level and Set the Ikea Kallax Bookcases in Place

It probably goes without saying but you have to put the Ikea Kallax bookcases together first.

We pulled the bookcases out from the window far enough that the 26″ cushion would fit inside of it.

Sharing all our tips and tricks of how we made this easy and awesome DIY Window Seat using a Ikea Kallax Hack Bookshelf as a Bench with step by step pictures.  We made the Kallax window seat large enough so it could double as a bed for overnight guests with bookcases underneath to provide extra storage.

We leveled the bookcase with the floor using scrap wood.

We used 2 by 4’s in between each of the three bookcases to make it fit the 95″ width of the room under the window.

Sharing all our tips and tricks of how we made this easy and awesome DIY Window Seat using a Ikea Kallax Hack Bookshelf as a Bench with step by step pictures.  We made the Kallax window seat large enough so it could double as a bed for overnight guests with bookcases underneath to provide extra storage.

So if you were wondering if you can connect the Ikea Kallax bookcases together, yes you can!

Step THREE – Add a Particle Board Top to the Bookcases for the Bench Seat

We had particle board in our garage left over from a bed we gave away so we cut it in 2 pieces to fit the 95″ wide by 26″ deep bench seat.

Sharing all our tips and tricks of how we made this easy and awesome DIY Window Seat using a Ikea Kallax Hack Bookshelf as a Bench with step by step pictures.  We made the Kallax window seat large enough so it could double as a bed for overnight guests with bookcases underneath to provide extra storage.

Step FOUR – Add the Trim and Shiplap Wall to the Bench Window Seat using a Ikea Kallax Hack

We used pre-primed baseboard to cover all of the 2 by 4’s and clean up the look of the bookcase. Jason added an inch lip in the front to keep the window seat from moving around.

Jason added a shiplap wall to the area around the window since we knew it was going to get a lot of use and we wanted it to stand up to all the boys leaning against it.

Sharing all our tips and tricks of how we made this easy and awesome DIY Window Seat using a Ikea Kallax Hack Bookshelf as a Bench with step by step pictures.  We made the Kallax window seat large enough so it could double as a bed for overnight guests with bookcases underneath to provide extra storage.

We LOVE shiplap around here!!! (see more shiplap rooms HERE)

Step FIVE – Paint the Bench Window Seat and add the Exterior Cushions and Pillows

I painted all of the trim with a white and we painted the shiplap walls and the rest of our son’s room Sherwin Williams Emerald Crushed Ice paint in a flat finish.

Sharing all our tips and tricks of how we made this easy and awesome DIY Window Seat using a Ikea Kallax Hack Bookshelf as a Bench with step by step pictures.  We made the Kallax window seat large enough so it could double as a bed for overnight guests with bookcases underneath to provide extra storage.

Lastly, we added the bench seat cushion and pillows to the window.

Sharing all our tips and tricks of how we made this easy and awesome DIY Window Seat using a Ikea Kallax Hack Bookshelf as a Bench with step by step pictures.  We made the Kallax window seat large enough so it could double as a bed for overnight guests with bookcases underneath to provide extra storage.

Our son loves his new Ikea kallax hack bench window seat. It’s perfect for him to lay down and take a nap or sit and play video games.

Sharing all our tips and tricks of how we made this easy and awesome DIY Window Seat using a Ikea Kallax Hack Bookshelf as a Bench with step by step pictures.  We made the Kallax window seat large enough so it could double as a bed for overnight guests with bookcases underneath to provide extra storage.

The baskets under the bench window seat provide great storage for his video game controllers, shoes and basketball and football cards.

Sharing all our tips and tricks of how we made this easy and awesome DIY Window Seat using a Ikea Kallax Hack Bookshelf as a Bench with step by step pictures.  We made the Kallax window seat large enough so it could double as a bed for overnight guests with bookcases underneath to provide extra storage.

We love the look of his Ikea Kallax hack bench window seat in his bedroom. It adds so much character and storage to the space.

If you have any questions about this DIY Ikea Kallax hack please let us know!

If you like this Ikea Kallax Hack, be sure to check out all of our Ikea Hacks below!

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