Cobblestone Slab — Minecraft block

Cobblestone Slab

Cobblestone Slab is the half-block version of cobble — rough texture, the cheapest stone half-floor in vanilla.

Block ID minecraft:cobblestone_slab
Mod Vanilla
Game versions
1.21

Description

Cobblestone Slab is crafted from three cobblestone blocks placed in a single horizontal row, yielding six slabs per recipe — the standard slab ratio applied to the cheapest stone material in vanilla. The texture preserves the chunky cobble pattern of the parent at half height, giving builders a low-cost half-block option for paths, paving, and rough finished floors.

For builders, this material is the workhorse of medieval-themed vertical detailing. Use it as a thin floor in mountain bases where the structure should feel hewn from native rock, as horizontal trim above doorways in dungeon corridors, or as a low garden border where a full block would look too imposing. Standard slab behaviour applies: bottom or top half placement, vertical merging with a same-type slab, flat upper face that accepts torches and signs. The block has no flammability and the same moderate blast resistance as the parent. A stonecutter accepts cobblestone blocks and produces the slab variant directly at one-to-one efficiency, useful when stockpiles are large.

Minecraft Java & Bedrock Edition

How to craft and use Cobblestone Slabs in Minecraft

  1. 1

    Mine cobblestone

    Break stone with any pickaxe (wood tier or above) to collect cobblestone. You need at least 3 cobblestone blocks to craft one batch of slabs.

  2. 2

    Craft six slabs at once

    Place 3 cobblestone blocks in a horizontal row across any row of the crafting grid to produce 6 Cobblestone Slabs per recipe.

  3. 3

    Alternative: use a stonecutter

    Place one cobblestone block into a stonecutter to get 1 Cobblestone Slab. This is more efficient when converting large stockpiles one at a time, since the output ratio is 1:1 instead of 3:6.

  4. 4

    Place the slab

    Right-click the lower half of a block space to place the slab on the floor, or right-click the upper half to attach it ceiling-side. Two slabs stacked in the same block space form a double slab that behaves like a full block.

  5. 5

    Use for detailing, paths, and step transitions

    Cobblestone Slabs suit dungeon floors, cave entrances, medieval roads, and smooth step-down transitions in rough terrain where a full block would create jarring vertical drops.

Tip

Cobblestone Slabs cannot substitute for a full cobblestone block in crafting recipes. The stonecutter converts cobblestone to slabs — not the reverse.

How to craft this block

Ingredients: Cobblestone Cobblestone x3
Crafting
Cobblestone Slab
6
Cobblestone Slab

Frequently asked questions

How do you craft a Cobblestone Slab?

Place 3 cobblestone blocks in a single horizontal row on a crafting table to get 6 Cobblestone Slabs. A stonecutter also converts 1 cobblestone into 1 slab.

Can Cobblestone Slabs burn?

No. Cobblestone Slab is non-flammable and will not catch fire or be destroyed by lava, unlike wooden slabs.

What pickaxe breaks a Cobblestone Slab fastest?

Any pickaxe can mine Cobblestone Slabs. A wooden pickaxe is the minimum required tier; stone, iron, diamond, and netherite pickaxes break them progressively faster.

Do Cobblestone Slabs work in both Java and Bedrock Edition?

Yes. Cobblestone Slab is available in both Java Edition and Bedrock Edition with identical placement and crafting behaviour.

What is the blast resistance of a Cobblestone Slab?

Cobblestone Slab has a blast resistance of 6, matching the full cobblestone block, making it moderately resistant to TNT and creeper explosions.

Can you place a torch on a Cobblestone Slab?

Yes. Torches, signs, and other attachable items can be placed on the flat upper face of a Cobblestone Slab.

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