Steep stone steps on heavy clay

[geoffblack]

I recently dug up a crazy paving driveway which left me with about 5 tons of good quality stone. I now plan to build a flight of approx 35 stone steps on a very steeply sloping site (fall of 1 in 3) with a sub-base of heavy clay. The steps will get light foot traffic and an occasional wheelbarrow. Can I hasten the building process by just bedding the stones on sand over the clay, or must I bed onto mortar? Any advice greatrly appreciated.

[84-1093879891]

They ought to be bedded onto concrete, Geoff. Have a look at the Steps page - does that make it clear?