No comment as to the Kallax, but I can tell you that after buying my son a bedframe with incorporated drawers, it's almost made his closet obsolete.

Look at these ideas for small bedrooms: https://www.housebeautiful.com/lifestyle/organizing-tips/g3101/ikea-storage-hacks/

In particular, #8--I think something along those lines, with a desk somewhere, would suit your needs.

You can also create a "headboard" that functions as bookcase and nightstands that are essentially dressers. So many ideas with Ikea hacks.

I agree about the under bed storage in a small space and I think the center pieces on the Kallax are needed for integritiy of the whole thing. I rarely mess with Ikea stuff because a lot of thought has gone into the majority of ther designs . How could you even sit at the desk area in your plan IMO a big no. If you post some pics and a floor to scale there will be help from this forum for sure.

Agree, start a new thread with a plan of the room, include furniture you plan to use with appropriate measurements to scale. Indicate windows, doors, etc. Folks here love this kind of challenge.

I have a KALLAX that is 20 year old and I have done what you want. It may need to be reinforced by brakects, the one I have is a 6' x 6' so the brackets come with it. This said, I am not sure whether it will be practical or not for what you want.

At some point, we had a work surface attached to the shelves and I used it for my desktop. It worked, though it was clearly DIY.

This said, if you can actually find the space for a desk, it would be better. So take the good people of Houzz to their word and see if they can help you. I would however give an idea of a budget because different people have different ideas of what is reasonnable.

It might work, but where would you put your knees?

Like Toronto mentioned, I can't imagine sitting with knees hitting the bottom boxes. What about stacking the Kallax unit with a slab of wood for a desk between them that hangs out from it. Then, affix your own legs to the end. Ikea has desk legs available called Adils ($4ea.). However, I would make sure to secure the top Kallax unit, desk slab, and bottom Kallax unit together for safety.

*Ikea also has desk slabs ($100) you can purchase.

**Just make sure the height of the desk leg and the height of Kallax align.

I'm minimum wage and a student, so my budget is pretty minimal (probably under $100). Said Pitbull has her toys/mat/water under the bed because when I used it for storage, she would dig everything up (claws in bookcases and all) to borrow down there herself. I know I don't want to get rid of the Kallax I have (2), because they were a massive investment in and of themselves, so trying to work a plan around them. I don't mind a solution that is clearly DIY, and prefer a DIY- I'll have to go back to the drawing board.

IKEA has table tops in 3 sizes along with the hardware so you can attach a table top to your shelving unit. The legs are adjustable in height

There is also a drop down table available from IKEA. They used to offer this in pine which was a bit less expensive.

IKEA sell a Linnmon desktop and connecting hardware specifically for the Kallax units. However, it might take up more space than you can give it. Like others, though, the idea of not having anywhere for my knees would make your drawing unworkable for me.

I would probably have to do something like Linnmon sideways - but I will look into if that's doable! I am 100% sure a wall desk would not even hold its own weight in our walls tho 😬😟

The first picture @BeverlyFLADeziner posted is what I was thinking of.

Ikea has table tops a lot cheaper than that for students and savers - Their Linnmon table top in the smaller size is just $9. Then add a pair of legs for somewhere between $10-$30.

Yes that first picture from @BeverlyFLADeziner was what I was trying to explain too. Pictures are often clearer than words.

Do a Google search for "kallax hack desk" and see if anything floats your boat.

yes, you can hack a kallax to achieve your original plan. I did something similar for a record player. look closely at the bookcase you already own. see how the vertical walls are individual square pieces, so all you need to do is omit two. the horizontal pieces are continuous throughout the entire width, so you would need access to a really good saw.

see my diagram. the vertical pieces are held in place with pegs. you can cut the pegs shorter and hammer them in so they won't stick up. (if you don't use the pegs, the piece underneath might just flop over, and you'll need it for support). the piece that you have to cut (where the red line is) -- that edge will be visible and raw looking, and there will be visible holes where pegs were originally supposed to go on the left side of that shelf. so unless you can come up with creative ways to cover those areas up, this is going to look very hacked.

also: be careful when cutting. the veneer is very thin. if you cut this wrong, it will look really ragged. masking tape before cutting will help keep the veneer from chipping, but it's also a good idea to us a really fine, sharp saw.

I love hacking furniture and have been doing it for a long time. I think it's only worth it if it's your last resort and you're planning on hacking an existing kallax to save money, but don't buy a new one for this project. I think the other suggestions above will be much easier, just as cost effective, and more comfortable!

You could also do something like this to give yourself extra storage.

I've found IKEA stuff to be quite hackable, however, I have plenty of tools and experience. It may push the boundaries of cost effectiveness if you have to pay someone to hack for you.

Jessica why don’t you post your bedroom floor plan and what you own/need to work with. The kallax may not be the best/most economical and I’m concerned about making your bed extra high w a dog that needs to jump up/down (dogs can break their backs doing this). Fresh eyes may help you see an even simpler way.

I think kallax’s can be stacked no problem, but the knee thing is definitely a problem!! Try it out now with the kallax you have and see if sitting right up to it is comfortable