Window structures that are designed from wood can have a variety of design. The main criterion for evaluating such designs is the quality of the product, as well as the accuracy of fitting all joints. If you carry out timely care using special impregnations, then you can increase the life of these structures, as well as make their functionality more accurate. Several glasses can be placed in the frame. In this case, it all depends on the climate belt is the apartment or the house.