This elaborate trenches needed revetment alongside the slopes and duck-boards to enable the soldiers to walk. Both parapet and parados were reinforced and enlarged by the use of sandbags.

The eye catcher in the excavation trench was the actual frontline of the end of the Second Battle for Ypres (22 April 25 May 1915). This same line was maintained up to the start of the Third Ypres (31 July 1917). The layout indicated a zigzag trenchline and the presence of U-shaped fire-bays. The sides of the wide and profound trench were revetted with coorogated iron, kept immobilised by A-frames. The inverted A-frames are wooden elemntes, shaped as an A and put in place inverted, which occur at regular distances in the trenches. In these frames duck-boards are placed. In the void under the boards, water can be evacuated, while the feet ogf the men occupying the trench were kept dry. At some points small shelters and storage were constructed in the side of the trench.