Four oaks with diameters of 30 to 45 cm were cut with various reconstructions of Neolithic stone tools. Only one tool was used for each trial, one adze, two Rössen broad wedges, and one flint axe. The net precipitation time was determined and the wearing marks were documented on the devices, felling notches and chips. All trees and felling notches were scanned on site with a 3D strip light scanner. In addition, the cut-out stumps are then recorded in the laboratory using a high-resolution 3D scanner. Due to optimized tools and improved abilities of the participants significantly shorter precipitation times were achieved. On fresh planks, as well as three submerged planks from last year, their fine machining was tested with bone instruments and the lower well segment was made with peg locks.