It originates from Gupf near St.Margareten/Rosental. It was situated near the river Brovnica, from which the water was taken to drive the water wheel. The basement is carried by seven pillars made of bricks. On the opposite side of the main shaft there is a con rod which moves up and down the wooden frame in which the saw blade is fixed. On the upper floor, a wagon on which the lumber is fixed runs smoothly on wooden rolls. There, the log is cut into pieces. A cogwheel mechanism is responsible for the gradual pulling back of the wagon; hereby a blank lancing of the saw blade is prevented. The ´perlin` roof is extended on one side in order to protect the sliced boards from atmospheric conditions and to keep them dry until they are sold or used when required.