Stairs are themed decorative blocks that allow players or other creatures to change elevation without jumping, just like in vanilla. They are all obtained from their respective full-blocks with the same recipe in the crafting table, and some of them can be found naturally in modded structures.
ANCIENT STONE STAIRS
RECIPE
ANCIENT WOODEN STAIRS
RECIPE
CALAMITES STAIRS
RECIPE
PALAEORAPHE STAIRS
RECIPE
VOLCANIC STAIRS
RECIPE