I've just finished building a garden wall to level what was previously a slope, any suggestions on what to cap it with? The total length is over 22m. Previously I've used capping stones (?) but after a while they tend to come lose because the kids walk on them. I wondered about using gripfill rather than mortar but don't know whether it would last. Also wondering about using decking boards rather than "stone" (artificial). Any experiences or opinions?
Dave S