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A slab is a half-height version of its respective block.
There are 67 variants of slabs:
All slabs have the same crafting recipe format, with one block resulting in two slabs each.
All slabs except wooden slabs and bamboo mosaic slabs can be obtained by stonecutting, at the same rate as with crafting.
Slabs can occupy either the top half or the bottom half of a block, or both:
Slabs cannot be oriented vertically.
In Bedrock Edition a single slab (top or bottom) is transparent to light and diffuses sky light, while a double slab is opaque. The empty half of a slab block is also transparent to mobs, unlike other transparent blocks such as fences and glass, which players can see through but mobs cannot.
A bottom placed on top of a hopper is transparent to items; the items fall through the bottom slab into the hopper. Without a hopper attached below, a bottom slab behaves as a solid surface.
Falling block entities (like sand, gravel, and concrete powder) turn into their dropped form if they land on a bottom slab, as when they fall on a torch.
Mobs see a slab as a full block when pathfinding. They can spawn on top slabs and double slabs, but not on bottom slabs. This can be used to prevent mob spawning in certain areas, such as mob farms.
Generally, the top face of top slabs, the bottom face of bottom slabs, and all faces of double slabs are handled as solid blocks. Due to this, blocks that require a solid surface for placement can be placed on these faces.
Double slabs are handled as a single block instead of two different slabs; as such, breaking one destroys the whole block and drops two slabs, as opposed to breaking only one slab within the same block-space. "Double slabs" that are not aligned to the grid (i.e. a bottom slab on top of a top slab) are handled as separate blocks and are broken individually.
Redstone dust placed on a top slab receives signals from redstone dust one block lower and adjacent, but cannot transmit signals down to that block.
Due to the way blast rays propagate from an explosion, bottom slabs provide extremely effective absorption to explosions directly on top of them. In some cases, only the slab is destroyed from a TNT explosion directly on top of it. Explosions from end crystals and creepers are also weakened.
Sneaking reduces the player's hitbox height to 1.5 blocks, allowing the player to fit through such a gap (for example, walking over a bottom slab with one block of air above it, or in a two block high tunnel with an upper slab on the ceiling). A player cannot walk from a block of soul sand directly up to a bottom slab without jumping – this applies not just to soul sand, but to any block 7⁄8 of a block high or shorter, because the maximum step height of the player is 0.6 of a block. The player can walk off a bottom slab while sneaking, because the sneaking prevents falling only when the distance is higher than one half block.
If a single slab is placed in a water source block, or water is placed onto a single slab using a water bucket, the empty half of that slab's block is waterlogged. If a slab is placed in flowing water, a pocket of air is created in the unfilled half of the block. If the player's head is in this pocket, the player can breathe and see as clearly as from an air block. In Java Edition, if a single slab is placed in between two water sources or waterlogged blocks, the slab becomes waterlogged.
A minecart on powered rails is not repelled by a slab, although it is repelled by a slab with a minecart on top.
| Name | Default value | Allowed values | Description |
|---|---|---|---|
| type | bottom
| bottomtop | Where the slab is within its block. |
double | The block is a double slab. | ||
| waterlogged | false | falsetrue | Whether or not there's water in the same place as this slab. |
| Name | Metadata Bits | Default value | Allowed values | Values for Metadata Bits |
Description |
|---|---|---|---|---|---|
| minecraft:vertical_half | Not Supported | bottom
| bottomtop | Unsupported | Where the slab is within its block. |
| Java Edition pre-Classic | |||||||
|---|---|---|---|---|---|---|---|
| May 16, 2009 | Notch mentions wanting to add "half-height tiles for stairs". | ||||||
| Java Edition Classic | |||||||
| May 17, 2009 | Slabs were suggested on the TIGSource forums. | ||||||
| October 22, 2009 | Dirt slabs were shown in a blog post. | ||||||
| October 23, 2009 | Notch says the new half block has nearly been finished and gives a video. | ||||||
| 0.26 SURVIVAL TEST | Added stone (now smooth stone) slabs. | ||||||
| Java Edition Indev | |||||||
| 0.31 | 20100128-2200 | Slabs no longer drop from coal ore. | |||||
| 20100130 | Slabs have now received a crafting recipe: 3 slabs from 3 cobblestone. | ||||||
| Java Edition Beta | |||||||
| 1.3 | Added "wooden" (now petrified oak), "stone" (now cobblestone), and sandstone slabs. | ||||||
| Stone slabs are now crafted from 3 stone. | |||||||
| 1.8 | Pre-release | Added stone brick and brick slabs. | |||||
| "Stone" slabs are renamed to cobblestone slabs. | |||||||
| The sprinting feature has been added in this update. While stairs cancel the player's sprinting, slabs allow a player to continue sprinting. | |||||||
| Java Edition | |||||||
| 1.0.0 | ? | Slabs placed above other slabs no longer combine into a double slab unless the top slab is placed directly on the bottom slab.[more information needed] | |||||
| 1.2.1 | 1.2 | All types of slabs are now able to be placed upside down and under blocks; these occupy the top half of their block space rather than the bottom half. | |||||
| The crafting recipe has been changed, so that 6 slabs would be crafted rather than 3. | |||||||
| 1.3.1 | 12w17a | New slabs have been added for the four different types of wood planks, replacing the functionality of the now-unobtainable petrified oak slab. These new slabs are vulnerable to fire, and can be collected faster with an axe than with a pickaxe. Petrified oak slabs already crafted or placed in the world remain as-is. | |||||
| 12w19a | Double slabs broken with Silk Touch now drop both slabs instead of one.[verify] | ||||||
| 12w22a | Upside down slabs can now be placed by generally looking at the top half of the side of a block, rather than strictly the underside of a block. | ||||||
| 12w25a | Redstone (including repeaters, torches. levers and pressure plates) and rails can now be placed on slabs positioned upside down. | ||||||
| 12w26a | Mobs can now spawn on upside down slabs. | ||||||
| 1.4.2 | 12w39a | Slabs now interact properly with lighting. | |||||
| When slabs are placed upside down, they now accept light from light sources themselves, and no longer block light to surrounding blocks. | |||||||
| Slabs no longer cast the shadow of a full-sized block.[1] | |||||||
| 1.4.6 | 12w49a | Added nether brick slabs. | |||||
| 1.5 | 13w02a | Added quartz slabs. | |||||
| April 1, 2013 | Added TNT slabs, called Etho Slabs, to the April Fools update, Minecraft 2.0. They exploded like TNT, producing a larger explosion that caused anvils to spawn over any player in the explosion's range. | ||||||
| 1.7.2 | 1.7 | Added acacia and dark oak slabs. | |||||
| 1.8 | 14w32a | Added red sandstone slabs. | |||||
| Armor stands are now crafted using any slab. | |||||||
| 14w32b | Armor stands can now be crafted only using stone slabs. | ||||||
| 1.9 | 15w31a | Added purpur slabs. | |||||
| April 17, 2018 | Dinnerbone confirms that Java Edition 1.14 contains many new stairs and slabs. | ||||||
| 1.13 | 17w47a | Old non-flammable wooden slabs, which are now called "Petrified oak slabs", have been re-implemented into the creative inventory. | |||||
| 18w07a | Added slabs for prismarine, prismarine bricks, and dark prismarine. | ||||||
| 18w10c | Water can now be placed on the same block as slabs. | ||||||
| October 10, 2018 | Dinnerbone tweets that there are going to be 14 new slabs. | ||||||
| 1.14 | 18w43a | Added stone, mossy cobblestone, mossy stone brick, granite, polished granite, diorite, polished diorite, andesite, polished andesite, smooth sandstone, cut sandstone, smooth red sandstone, cut red sandstone, red nether brick, end stone brick, and smooth quartz slabs. | |||||
| Stone slabs had been renamed to smooth stone slabs, and now crafted out of 3 smooth stone. | |||||||
| 18w46a | Slabs now allow light to pass through certain faces. | ||||||
| 19w12a | Added cut sandstone and cut red sandstone slabs. | ||||||
| 19w13a | Slabs no longer block light, except at their full faces. | ||||||
| 1.16 | 20w06a | Added crimson and warped slabs. | |||||
| 20w15a | Added blackstone, polished blackstone, and polished blackstone brick slabs. | ||||||
| 1.17 | 20w45a | Added four variants of cut copper slabs and three variants of waxed cut copper slabs. | |||||
| 21w07a | Added grimstone (cobbled deepslate), polished grimstone (polished deepslate), grimstone brick (deepslate brick), and grimstone tile (deepslate tile) slabs. | ||||||
| 1.19 | 22w11a | Added mangrove and mud brick slabs. | |||||
| 1.19.3 Experiment | 22w42a | Added bamboo and bamboo mosaic slabs. | |||||
| 1.19.4 Experiment | 23w07a | Added cherry slabs. | |||||
| 1.20.3 Experiment | 23w43a | Added tuff, tuff brick, and polished tuff slabs. | |||||
| 1.21.2 Experiment | 24w40a | Added pale oak slabs. | |||||
| 1.21.4 | 24w44a | Added resin brick slabs. | |||||
| 26.2 | snap1 | Added cinnabar, polished cinnabar, cinnabar brick, sulfur, polished sulfur, and sulfur brick slabs. | |||||
| Pocket Edition Alpha | |||||||
|---|---|---|---|---|---|---|---|
| v0.1.0 | Added wood, cobblestone, stone, and sandstone slabs. | ||||||
| v0.3.0 | Added brick slabs. | ||||||
| v0.6.0 | Added stone brick slabs. | ||||||
| Slabs can now be placed on the top half of blocks. | |||||||
| The recipes for crafting slabs now give 6 slabs, instead of 3 slabs. | |||||||
| v0.7.3 | Added quartz slabs. | ||||||
| v0.8.0 | build 1 | Added spruce, birch, and jungle wood slabs. | |||||
| v0.9.0 | build 1 | Added acacia and dark oak wood slabs. | |||||
| v0.12.1 | build 1 | Added nether brick slabs. | |||||
| v0.14.0 | build 1 | Added red sandstone slabs. | |||||
| Pocket Edition | |||||||
| 1.0.0 | alpha 0.17.0.1 | Added purpur slabs. | |||||
| Bedrock Edition | |||||||
| 1.2.13 | beta 1.2.13.8 | Added slabs for prismarine, prismarine brick and dark prismarine. | |||||
| 1.9.0 | beta 1.9.0.0 | Added stone, mossy cobblestone, mossy stone brick, granite, polished granite, diorite, polished diorite, andesite, polished andesite, smooth sandstone, cut sandstone, smooth red sandstone, cut red sandstone, red nether brick, end stone brick, and smooth quartz slabs. | |||||
| 1.12.0 | beta 1.12.0.2 | Single slabs now only block sky light. | |||||
| 1.16.0 | beta 1.16.0.51 | Added crimson and warped slabs. | |||||
| beta 1.16.0.57 | Added blackstone, polished blackstone, and polished blackstone brick slabs. | ||||||
| 1.16.210 Experiment | beta 1.16.210.57 | Added four variants of cut copper slabs and three variants of waxed cut copper slabs. | |||||
| 1.17.0 | beta 1.16.230.52 | Added cobbled deepslate, polished deepslate, deepslate brick, and deepslate tile slabs. | |||||
| 1.19.0 | Preview 1.19.0.21 | Added mangrove and mud brick slab. | |||||
| 1.19.50 Experiment | Preview 1.19.50.21 | Added bamboo and bamboo mosaic slabs. | |||||
| 1.20.50 Experiment | Preview 1.20.50.22 | Added tuff, tuff brick, and polished tuff slabs. | |||||
| 1.21.50 | Preview 1.21.50.20 | Added pale oak slabs. | |||||
| Preview 1.21.50.25 | Added resin brick slabs. | ||||||
| 26.20 Experiment | Preview 26.20.23 | Added cinnabar, polished cinnabar, cinnabar brick, sulfur, polished sulfur, and sulfur brick slabs. | |||||
| 26.30 | Preview 26.30.20 | Implemented all features from the "Drop 2 of 2026" experiment in vanilla gameplay. | |||||
| Legacy Console Edition | |||||||
|---|---|---|---|---|---|---|---|
| Xbox 360 | Xbox One | PS3 | PS4 | PS Vita | Wii U | Switch | |
| TU1 | CU1 | 1.00 | 1.00 | 1.00 | Patch 1 | 1.0.1 | Added wood (original oak), cobblestone, stone, and sandstone slabs. |
| TU5 | Added stone brick and brick slabs. | ||||||
| TU9 | Added spruce wood, birch wood, and nether brick slabs. | ||||||
| The crafting recipe has been changed, so that 6 slabs would be crafted rather than 3. | |||||||
| TU12 | Added jungle wood slabs. | ||||||
| Slabs can now be placed upside down. | |||||||
| Items can now be placed directly on upside down slabs. | |||||||
| TU14 | 1.04 | Added quartz slabs. | |||||
| The placement of half blocks and other blocks on half blocks has been changed. | |||||||
| The placement of upside down slabs has been changed. | |||||||
| TU25 | CU14 | 1.17 | 1.17 | 1.17 | Added acacia and dark oak wood slabs. | ||
| TU31 | CU19 | 1.22 | 1.22 | 1.22 | Patch 3 | Armor stands can now be crafted using stone slabs. | |
| TU46 | CU36 | 1.38 | 1.38 | 1.38 | Patch 15 | Added purpur slabs. | |
| TU69 | 1.76 | 1.76 | 1.76 | Patch 38 | Added slabs for prismarine, prismarine bricks and dark prismarine. | ||
| 1.88 | Added stone, mossy cobblestone, mossy stone brick slab, granite, polished granite, diorite, polished diorite, andesite, polished andesite, smooth sandstone, cut sandstone, smooth red sandstone, cut red sandstone, red nether brick, end stone brick, and smooth quartz slabs. | ||||||
| New Nintendo 3DS Edition | |||||||
|---|---|---|---|---|---|---|---|
| 0.1.0 | Added 6 types of wooden slabs. | ||||||
| Added cobblestone, smooth stone, stone brick, brick, sandstone, red sandstone, nether brick, and quartz slabs | |||||||
| 1.7.10 | Added purpur slabs. | ||||||
Issues relating to "Slab" are maintained on the bug tracker. Issues should be reported and viewed there.