Smooth Stone is required to make a Blast Furnace, but aside from that, you can simply use it as a building block for your next construction in Minecraft.

Concrete is one of the most versatile blocks for building in Minecraft. It’s non-flammable and harder than stone, making it excellent to build near fire or lava. It has an extremely smooth ...

To make the Smooth Stone Slab, all you need are three Smooth Stones spread across any row at a crafting table. This yields six Smooth Stone Slabs, more than enough for the Armor Stand.