Can be a simple means of going from one level to another; Dealing with a gentle slope; Ideally, a feature in their own right.

Needs to be designed correctly to have regular even steps, riser 15 cm, tread 25 cm. Treads must not collect water; Can be cast in concrete; Brick riser’s slab treads; Sleepers; Pole riser’s bark treads (rustic informal).