A calf box (1) for stalling an animal, the calf box (1) comprising a plurality of box ele- ments, and the calf box (1) being adapted for a rearrangement between an unfolded position (A) for housing the animal and a folded position (B) for storing the calf box (1). The calf box (1) includes a coupling portion (20) for engaging with a correspond- ing suspension (7) on a building element, the coupling portion (20) being displaceable along the suspension (7).