Waling

The pieces of sheeting are placed as the excavation is made, and it is necessary to place vertical and upright waling as well as horizontal waling pieces to hold the sheeting. This means, in some cases, a wider trench must be dug to allow for the extra width of the waling.

Two rounds of waling on centre fitch on the largest size, and one round on the small size.

Where walls or sheeters span vertically, walings are needed to transfer loads from the sheeting to the struts, which provide the bracing, or to the anchors, which retain the sheeting. The walings need not be continuous as, for example, in hammer head struts used against diaphragm wall panels where separate waling reinforcement may be included within the panel reinforcement of the wall.