How to Make Tuff Slab in Minecraft

Tuff Slab is a decorative half-height variant of tuff that never generates naturally and exists only after crafting. Minecraft players make 6 Tuff Slabs by placing 3 tuff blocks in a row on the crafting grid, or cut each tuff block into 2 slabs with a stonecutter. The raw tuff for these recipes is mined with any pickaxe below Y=0, where tuff attempts to generate 2 times per chunk in blobs of up to 864 blocks, in all biomes. Tuff Slab became part of Minecraft with Java Edition 1.21 and Bedrock Edition 1.21.0. Tuff Slab has hardness 1.5 and blast resistance 6 (how well the block withstands creeper and TNT explosions), matching a full tuff block, and stacks to 64.

In builds, Tuff Slab serves wherever a half-block edge works better than a full tuff block: layered floors, window sills, stair landings, and roof trims. Two Tuff Slabs in the same block space merge into a double slab that behaves as a full block. Water fills the open half of a single Tuff Slab, so tuff detailing survives underwater and coastal builds. Two Tuff Slabs stacked vertically on the crafting grid also craft into 1 Chiseled Tuff, the carved tuff variant that generates naturally in trial chambers. Tuff Slab is non-renewable (the world holds a limited supply of tuff), so large projects slowly drain the tuff blobs below Y=0. Mobs treat a bottom Tuff Slab as a non-spawnable surface, while top halves and double slabs can host spawns — a detail mob-farm builders use when choosing slab orientation.