The trapezoidal limestone slab was apparently placed deliberately and extremely carefully in front of the entrance area of the chamber tomb. It lay on a previously applied layer of grey clay, which was also used in other parts of the chamber tomb to level out unevenness or to close gaps. The slab is interpreted as a „stepping stone“ or threshold to the entrance area of the megalithic tomb.
The terminal slab was part of a construction that encircled the burial chamber at the western end. The vertically standing limestone slab was wedged in the ground with small stones and had its own stone foundation. The inward-facing side abuts an antechamber paved with limestone, which was separate from the actual burial chamber.
After the chamber tomb had been built, the structure was grouted with clay.
Afterwards, the remaining spaces of the construction trench were filled with loess and the entire tomb was covered with a layer of loess. The photo shows the light, yellow loess backfill, which is interrupted by a dark discolouration. The excavators interpret this feature as the as the remains of a wooden wall.
The sharp boundaries between the loess backfill and the dark earth of the older mound are clearly visible. They show that the construction trench for the stone chamber tomb was only slightly larger than the burial chamber. The tomb was probably covered with a mound so that only the entrance area remained visible and accessible.