Poor drying doors. If the drying process was broken in the manufacture of doors, then, most likely, such doors will begin to swell and crack with the very small environmental environment. Even painting, ration or lamination will not help here. Such doors must be taken immediately back to where they were purchased. It is very difficult to determine all low -quality doors to the eye, and therefore, if you are not a specialist, then it is necessary to conclude an elementary guarantee agreement, so that it is possible to return the door in the end.