This is a dollhouse version of the IKEA Kallax / Expedit 2x2 shelving unit. It matches the (as depicted in the picture) 2x4 injection molded Expedit shelving unit in dimensions from a doll house set IKEA used to sell (HUSET), therefore it's not an exact scale replica of the real unit and it also has more fillet on the edges, but it matches very well with the dollhouse version of it. The scale is around 1:8.375.

Edit 2024/03/06: A box is now available as well that fits this model perfectly

The 2x4 unit in the pictures is not printed and not part of this model, it's an injection molded ABS piece made by IKEA