Result: 4× Light Blue Concrete Stairs
Light Blue Concrete Stairs is a shaped crafting recipe that uses 6 items: 6 Light Blue Concrete. Place the ingredients exactly in the pattern shown above. The pattern can sit anywhere on the grid as long as its shape stays the same. It needs the full 3×3 grid, so you have to use a crafting table.
You need 6 Light Blue Concrete — 6 items in total, arranged as shown in the crafting grid. The recipe gives you 4× Light Blue Concrete Stairs.
Yes. The recipe needs the full 3×3 grid, which only a crafting table offers.
It is a shaped recipe: the arrangement matters. You can shift the pattern around the grid, but the shape must stay the same.