Using the IKEA KURA reversible bed as the base, I made a toddler sized bunk bed with slide and den. It cost me approximately £210 including screws. And the whole project took about 24 hours, spread over 3 days.
Instructions for toddler sized bunk bed with slide and den
1. First I made up the KURA bed as a high sleeper.
2. I measured my toddlers existing cot bed mattress, marked up the KURA bed and cut it to cot bed size so my existing mattress would fit in it. (It was too big for the room leaving it as a full sized single bed as I wanted to add the slide at the side but it can be left bigger)
3. I assembled the IKEA TROFAST storage system, placed it at the bottom of the bed and marked out where I needed to cut the hole in the bed to get to the slide.
4. I marked up how wide I wanted the stairs and where I wanted to put them on the bed.
5. I took the sides off the bed and cut the openings for the stairs and slide. (Used the left over pieces of wood that were cut off when I reduced the bed size to make the openings stable).
6. I made up the stairs with hand rail using the left over wood from bed reduction and a piece of left over kitchen kickboard I had in the shed as stair treads.
7. I secured the stairs to the bed frame.
8. I used a piece of white cupboard board (was possibly the side of a white shelving unit) which was in a pile of free wood outside IKEA as a slide and attached 2 pieces of 2 x 1 to the sides as a lip. Cut it to size and attached it to the TROFAST storage system using more left over wood and 2 wooden knobs for the top. (I took the bottom off the TROFAST storage system to make it almost close to the height of the bed.)