ABSTRACT

Figure 9.1(b): The top of the grounds should be levelled (or parallel to the finished floor) and set up to finish between 6 and 10 mm below the anticipated skirting height. Long grounds should be fixed at each end and have a string line pulled taut along the face. Two pieces of offcut ground, one at each end, are pushed in between the line and ground, while a third piece of offcut ground is tried between the taut line and the unfixed ground at 600-900 mm intervals, packed if necessary and fixed. Shorter grounds may be checked for straightness with a timber or aluminium straightedge. Internal and external angles are butt jointed – not mitred. On external angles, run the first ground about 50 mm past the corner, butt the end of the second ground up to this and when fixed, cut off the first projection flush to the second ground’s face.