Renholmen's Triple stacker places ready product packages in the dry sorting lines, planing lines and other further processing plants. A continual timber flow in layers is registered and marked before the layers are stacked as ready product packets. The triple stacker can lay all types of packages as full-packages, half-packages, flat quarter-packages and quadratic quarter-packages. Laths are laid in the packages between pre-determined layers. The laths are manually loaded in a cassette on the walkway at the side of the machine. These are subsequently cut to the correct length for the package width concerned.