An oven comprising: - a cooking chamber wherein foods desired to be cooked are placed, - a door which allows access to the cooking chamber, - an outer panel which is located on the door and which forms the door surface that contacts the outer environment, - an inner panel which forms the door surface that contacts the cooking chamber and which has an interior surface that faces the outer panel, - a casing which is located between the outer panel and the inner panel, and on one side of which the outer panel and on the other side of which the inner panel are fixed such that they will be parallel to each other, and which has quadrangular and hollow first profiles forming the side edges of the door and a quadrangular and hollow second profile connecting the first profiles to each other, and which is formed by joining the profiles (7 and 8) together in a "U"-form, wherein the first profiles are oriented vertically and the second profile is oriented horizontally and the "U"-form is oriented upside-down when the door is in a closed and vertical position, - a bearing which is located on the end of the first profile and which has a "C"-shaped portion, and the "C"-shaped portion of which surrounds a first edge of the inner panel and thus limits the movement of the inner panel, wherein the first edge is the lower edge of the inner panel when the door is in a closed and vertical position, characterized in that the bearing comprises a base which is the continuation of the first profile, and between which and the inner panel interior surface a first gap is situated, and a first extension which is bent vertically to the base and against which the inner panel first edge bears, and a second extension, which is formed by the first extension end being bent onto the inner panel in parallel with the base, wherein the first gap enables the inner panel to be easily dismounted from the casing by being brought to an inclined position with respect to the inner panel. - a cooking chamber wherein foods desired to be cooked are placed, - a door which allows access to the cooking chamber, - an outer panel which is located on the door and which forms the door surface that contacts the outer environment, - an inner panel which forms the door surface that contacts the cooking chamber and which has an interior surface that faces the outer panel, - a casing which is located between the outer panel and the inner panel, and on one side of which the outer panel and on the other side of which the inner panel are fixed such that they will be parallel to each other, and which has quadrangular and hollow first profiles forming the side edges of the door and a quadrangular and hollow second profile connecting the first profiles to each other, and which is formed by joining the profiles (7 and 8) together in a "U"-form, wherein the first profiles are oriented vertically and the second profile is oriented horizontally and the "U"-form is oriented upside-down when the door is in a closed and vertical position, - a bearing which is located on the end of the first profile and which has a "C"-shaped portion, and the "C"-shaped portion of which surrounds a first edge of the inner panel and thus limits the movement of the inner panel, wherein the first edge is the lower edge of the inner panel when the door is in a closed and vertical position,