Absolutely any wood, although the most durable, has its own certain most problematic places. It is for this reason that for the manufacture of the highest quality doors you need to take into account absolutely everything for and everything is against. And the most important, of course, the most important process in the production of doors is the drying of the tree itself. Any doors start with drying. It is on the technology of drying wood that all the properties of the resulting wood material are very dependent. The material is steamed in order to achieve strictly the most uniform removal of all internal stresses, as well as a guaranteed way to avoid cracking of all blanks. The wood in the old days was maintained for several years in a dry cool room, completely, excluding all direct sunlight. To date, all modern drying chambers accelerate this whole process. But all, accelerated drying, does not give any guarantee that the wood will not begin to bend in the future or, but crack.