Our houses are made of spruce logs 60, 90 and 115mm oraz bali półokrągłych o średnicy 160mm, thick, and semicircular logs 160mm in diameter, imported from Scandinavia. The main element is the so-called glulam, available in three sizes: 10 cm x 16 cm; 7 x 16 cm; 5 x 16 cm. Before wood is processed, it has to be dried to the desired wetness of 12-14%. It should stay in a drying room for a few days to two weeks, depending on its wetness. The drying process is controlled by a computer, which determines wetness levels by means of probes inserted into wood. Then the wood gets processed in a milling machine (what we call a "combine"), so that the pieces can be later joined together. Then the wood undergoes quality control and the good pieces are cut to a desired size according to given specifications. These processed pieces are called logs. Thicker pieces (beams etc.) are made by means of gluing together glulam pieces. In order for them to remain glued, they also get pressed in a special machine, and after that they can be further processed, i.e. put through a milling machine and cut to a desired size. For instance, in order to make a ceiling beam, five or six glulam pieces have to be glued together. The technology used to make these parts and to build houses using round logs is pretty much the same as that using "square" logs. A piece of wood gets processed so that its diameter is 18, 26 or 30 cm. Then the wood is left to dry and later the pieces are joined together to form bigger pieces. Special cuts are made on the ends so that beams of two adjoining walls create special angles. Houses made of round logs are more expensive and therefore fewer are sold. All elements of each house are impregnated in our workshop, yet those that will be hidden and therefore not stained get impregnated again while being used for building.