I just finished the following project – adding a wooden playhouse on top of two IKEA KALLAX shelving units. The idea was to use the IKEA KALLAX (two KALLAX units of 2×4) as part of a kid’s playhouse with an upper deck and sleeping area below, if required. I wanted the the kids to be able to use the boxes from two sides.
The first step was to build the main construction that holds all the rest. It’s made out of stable wooden beams. Measure and cut all the beams to the right lengths.
Cut the wooden boards to size for the floorboards and wall panels.
Stain (here’s a kid safe version) the wooden beams and boards before construction. Attach the beams securely to wall.
The floor of the loft was fixed at a height that matches the highest row of shelves on the KALLAX. This now serves as a seating bench and also to store stuff on the upper deck.
KALLAX top row as seating bench in the upper deck.
The window-protection is from an old metallic shelf I salvaged.