How to restore the shape of the door without replacement

There are lots of contributing factors for tangling of wood some of them are natural, whether conditions like excessive moisture content in the atmosphere. The quality of the wood also plays a very important role in maintaining the shape of the wood, for instance, a well-seasoned wood can withstand plus or minus 15 degree temperature shift. What ever may be the reason fixing them in a course of time is very much impotent. Some of the cheapest way of doing this process is using a sand paper or a sanding machine which will fix the uneven boundaries on the surface of the wood. The process of sanding should be performed very carefully with exact measurements or otherwise will cause the wood to be completely unfit to use when doing replacement kitchen doors. The first step is to decide the amount of wood  which has to be removed so that the wood will restore its original shape. Then run the sanding machine at some definite speed (low) and gradually increase in steps. Stop the machine at regular intervals to check the evenness of the surface. Polish the new flesh of the wood for better finish.