Removed 10" of topsoil where interlock path would be laid. Installed contractor grade geotextile fabric everywhere grass previously was, and 7" of Granular M gravel in 2 lifts, compacting after every lift. Then installed 1.5" of high-performance bedding material. Then laid Blu 60 Champlain Grey pavers and 0.75-1.5" River Rock. Finished off the interlock with Super Sand G2 polymeric sand to seal up the joints.
