The present invention relates to a cubicle (10) for an animal, an arrangementwithin a cubicle and a method formounting said arrangement. The cubicle (10) has an open side (12) though whichthe animal enters the cubicle (10) and an oppositeend for the animal head. The cubicle (10) comprises a brisket board (13) forpositioning the animal in the right position within thecubicle (10) and a mattress (16) placed on a cubicle floor (14) for the animalto rest on. One side of the mattress (16), and one sideof the brisket board (13) are secured to the cubical floor (14) by anelongated profile (25) securing both the mattress (16) and thebrisket board (13) to the floor (14).