Abstract: This stop device fixed to the floor, for securing a door in cooperation with a floor bolt, particularly when the door is in its normal closed position, is characterized in that it comprises, on the one hand, a stop element having a front part provided with a projection forming a stop for the door and a rear part situated substantially at floor level, in which is formed a bore for receiving the free end of the floor bolt when the door is secured against the projection and, on the other hand, a recess formed in the floor, whose entrance is closed partly by the stop element and partly by at least one removable cover situated substantially in the same plane as the stop element.