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Slab

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For wooden slabs, see Wooden Slabs.
Slab
Slab
First Appearance Survival Test 0.26 (October 22, 2009; Dirt Slabs (immediately removed), Stone Slabs/Double Slabs)
Beta 1.3 (Sandstone, Oak, Cobblestone Slabs/Double Slabs)
Beta 1.8 (Brick, Stone Brick Slabs/Double Slabs)
1.5(Birch, Jungle and Spruce)
1.7(Acacia and Dark Oak)
1.8(Red Sandstone)
1.9 (Purpur)
Type of Block Building
Tool Used Wpickaxe
Data Values Hex: Stone:
Single Slab: 2C
Double Slab: 2B
Wooden:
Single Slab: 7E
Double Slab: 7D
Dec:
Stone:
Single Slab: 44
Double Slab: 43
Wooden:
Single Slab: 126
Double Slab: 125
Stackable? 64
Obeys Physics?
No
Luminosity
No
Transparency Single Slab:
Yes
Double Slab:
No

Slabs are highly blast-resistant blocks that measure half a block in height. They can be crafted, but they can also generate naturally in a variety of Generated Structures.

Mechanics

Slabs come in a variety of different types, based on the material of which they are made. There are ten different materials which come in slab form:

Two slabs can be stacked to make a block of regular height. When two slabs of the same material are stacked on top of one another, some varieties appear as if they were a full-sized block, but other varieties appear unmistakably as individual slabs.

Slabs have a unique quality when it comes to the Spawning of Mobs. A slab placed as the bottom-half of a block will not allow any mobs to spawn on top of it, whereas a slab placed as the top-half of a block will follow normal mob-spawning rules. This quality is useful when tying to make areas where no mobs can spawn, as a player can cover the entire surface of a room with slabs that are a half a block high, and no mobs will spawn in that room, regardless of whether the room is lit.

Like Glowstone, Redstone placed on top of slabs cannot power a redstone wire diagonally downwards, but can be powered by that redstone wire. It also does not obstruct redstone currents in the way that solid blocks do.

Slabs can be crafted in stacks of six, by combining three identical "full-sized" blocks (one of the 10 different types of material). Make a horizontal line of the desired materials in a Crafting Table.

Slab x6 (Possible materials listed above)
None None None
None None None
Material Material Material


History

  • Stone slabs were introduced to the game on October 24, 2009, in Survival Test (0.26).
  • Sandstone, Wood, and Cobblestone slabs were added in the Beta 1.3 update on February 22, 2011.
  • Stone Brick and Brick slabs were added in the Beta 1.8 update on September 15, 2011.
  • Red Sandstone slabs were added in Minecraft 1.8 update (Snapshot 14w32a, August 6, 2014).

Trivia

  • Despite the fact that sneaking lowers the players' eye level to 1.5 blocks high, doing so does not allow the player to walk over a single slab with one block of air above it.
  • Back in Survival Test, Notch tested Dirt Slabs. These were never added in the game.
  • Stone slabs with a data value of "3" are the oak slab listed above. These are different from regular Wooden Slabs, as they are unobtainable without Commands; they also have the same blast resistance as other stone slabs.
  • In the Joke Update, Minecraft 2.0, a new slab known as the Etho Slab was added. The name is a reference to the Minecraft YouTuber, EthosLab. This TNT slab version has a larger blast radius, and if a player is close enough, it will spawn an Anvil above them upon detonating.
  • The bottom of Ender Crystals appear to be Bedrock Slabs.
  • Armor Stands require 1 stone slab to craft.

Gallery

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