Sandstone Slab can be crafted in 2 ways — the grid above cycles through all of them. Variant 1 is a shaped crafting recipe that uses 3 items: 3 Sandstone. 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 3 Sandstone — 3 items in total, arranged as shown in the crafting grid. The recipe gives you 6× Sandstone Slab.
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.
Yes. There are 2 variants of the recipe — the others use Chiseled Sandstone. The grid on this page cycles through all of them.
Sandstone Slab is an ingredient in 1 crafting recipe, for example Chiseled Sandstone.