Slab

Slab

Renewable	Petrified Oak: No Andesite, Granite, and Diorite: No[until JE 1.16 & BE 1.16.0] Sandstone: No‌[BE only][until BE 1.16.0] (Red) Nether Brick: Yes‌[BE only]‌[upcoming: JE 1.16] Blackstone (and variants): No All others: Yes
Stackable	Yes (64), same type only
Tools
Blast resistance	Wood: 3 Stone: 6
Hardness	?
Luminant	No
Transparent	Double slab: No Single slab: Partial (blocks light)
Flammable	Overworld wood: Yes (5) All others: No
Catches fire from lava	Overworld wood: Yes All others: No

Slabs, sometimes incorrectly reffered to as half-slabs, are half-versions of their respective blocks.

Obtaining

Stone-type slabs and smooth blocks require a pickaxe to mine. Wooden slabs can be mined with anything, but an axe is quickest.

Block	End Stone Brick	Petrified Oak (Smooth) Stone Purpur Blackstone (and variants) Sandstone (and variants) (Mossy) Cobblestone Brick Stone Brick (Red) Nether Brick (Smooth) Quartz Red Sandstone (and variants)	Prismarine Prismarine Brick Dark Prismarine Granite Polished Granite Diorite Polished Diorite Andesite Polished Andesite Mossy Stone Brick	Wooden Slabs
Hardness	3	2	1.5	2
Tool
Breaking time
Default	15	10	7.5	3
Wooden	2.25	1.5	1.15	1.5
Stone	1.15	0.75	0.6	0.75
Iron	0.75	0.5	0.4	0.5
Diamond	0.6	0.4	0.3	0.4
Netherite	0.5	0.35	0.25	0.35
Golden	0.4	0.25	0.2	0.25

Most slabs drop themselves when broken. The exception is petrified oak slabs, which drop normal oak slabs.‌^{[Bedrock Edition only]}

Double slabs drop 2 of their respective single slabs, even when mined with Silk Touch. In Java Edition, double slabs are completely unobtainable.In Bedrock Edition, they can be obtained through inventory editing.

Stonecutting

Petrified Oak Slabs are the stone-type wooden slabs left from before Java Edition 1.3.1. They are now unobtainable in vanilla survival.

Natural generation

• Smooth stone slabs generate naturally in strongholds.
• Sandstone slabs generate naturally in desert wells, and desert pyramids.
• Spruce slabs generate naturally in igloo basements.
• Oak, birch, spruce, smooth stone and cobblestone slabs generate naturally in woodland mansions.
• Dark oak, cobblestone and mossy cobblestone slabs generate in pillager outpost.
• Oak, birch, spruce, jungle, acacia, and dark oak slabs can generate in shipwrecks.
• Blackstone and Quartz slabs generate in bastion remnants.‌^{[upcoming: JE 1.16 & BE 1.16.0]}

Villages

• Smooth stone, oak and cobblestone slabs generate naturally in plains villages.
• Smooth sandstone and sandstone slabs generate naturally in desert villages.
• Smooth stone and acacia slabs generate naturally in savanna villages.
• Smooth stone and spruce slabs generate naturally in taiga and snowy taiga villages.

Ruined Portal

• Stone, stone brick, and mossy stone brick slabs generate in overworld ruined portal.‌^{[upcoming: JE 1.16 & BE 1.16.0]}
• Blackstone, polished blackstone, and polished blackstone brick slabs generate in nether ruined portal.‌^{[upcoming: JE 1.16]}
• Nether brick slabs generate in nether ruined portal.‌^{[upcoming: BE 1.16.0]}

Usage

Placement

Slabs can occupy either the top half or the bottom half of a block, or both:

• Placing a slab on top of a block or on the side of a block in the lower half of the side surface creates a bottom slab
• Placing a slab on the underside of a block or on the top half of the side surface creates a top slab
• Placing a top and bottom slab of the same type in the same block creates a double slab block
• It's impossible to place two different kinds of slabs in the same block.

Slabs cannot be oriented vertically.

Behavior

An example of how top slabs can make redstone travel compactly "up stairs".

Slabs do not block a vertical redstone connection as it is a transparent block.

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, transparent blocks that need to placed on an opaque surface 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 drop two slabs, as opposed to breaking only one slab within the block. "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.

Mobs see a slab as a full block. Mobs can spawn on top slabs and double slabs, but not on bottom slabs. In Bedrock Edition, iron golems do not spawn even on a top slab.^[verify]

In Bedrock Edition, mobs standing on bottom slabs with air or another bottom slab below fail to pathfind correctly. They often end up spinning around in a small circle when they try to move.

Due to the way blast rays propagate from an explosion, bottom slabs provide extremely effective absorption to explosions directly on top of them.

Sneaking reduces the player's hitbox height to 1.65 blocks in Bedrock Edition, and so does not allow the player to walk over a bottom slab with one block of air above it, which is 1.5 blocks of space. In Java Edition, however, a crouching player's hitbox is exactly 1.5 blocks, allowing the player to fit through such a gap. 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 slab is placed in a water source block, the empty half of that slab's block is waterlogged. If a top slab is placed in flowing water, a pocket of air is created in the bottom half of the block. In this pocket, the player can breathe and see as clearly as from an air block.

A minecart on powered rails is not repelled by a slab, although it is repelled by a slab with a minecart on top.

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.

Slabs do not block light in Bedrock Edition.

Fuel

Wooden slabs can be used as a fuel in furnaces, smelting 0.75 items per slab in the Java and Legacy Console editions, and smelting 1.5 items per slab in Bedrock Edition.

Petrified Oak Slab

Petrified Oak Slabs are actually stone slabs with the wooden texture, so they have the same hardness as their stone counterparts. Currently, there are no crafting recipes for this special type of slab, and it can be obtained only from the creative inventory or from commands/cheats if a world does not already have any crafted prior to updating to 1.3.

Sounds

Java Edition:

Sound	Subtitle	Source	Description	Namespaced ID	Translation key	Volume	Pitch	Attenuation distance
	Block broken	Blocks	Breaking the block	block.nether_bricks.break	subtitles.block.generic.break	1.0	?	16
	None	Blocks	Falling on the block with fall damage	block.nether_bricks.fall	None	0.5	?	16
	Block breaking	Blocks	Mining the block	block.nether_bricks.hit	subtitles.block.generic.hit	0.25	?	16
	Block placed	Blocks	Placing the block	block.nether_bricks.place	subtitles.block.generic.place	1.0	?	16
	Footsteps	Blocks	Walking on the block	block.nether_bricks.step	subtitles.block.generic.footsteps	0.15	?	16
	Block broken	Blocks	Breaking the block	block.stone.break	subtitles.block.generic.break	1.0	0.8	16
	None	Blocks	Falling on the block with fall damage	block.stone.fall	None	0.5	0.75	16
	Block breaking	Blocks	Mining the block	block.stone.hit	subtitles.block.generic.hit	0.25	0.5	16
	Block placed	Blocks	Placing the block	block.stone.place	subtitles.block.generic.place	1.0	0.8	16
	Footsteps	Blocks	Walking on the block	block.stone.step	subtitles.block.generic.footsteps	0.15	1.0	16
	Block broken	Blocks	Breaking the block	block.wood.break	subtitles.block.generic.break	1.0	0.8	16
	None	Blocks	Falling on the block with fall damage	block.wood.fall	None	0.5	0.75	16
	Block breaking	Blocks	Mining the block	block.wood.hit	subtitles.block.generic.hit	0.25	0.5	16
	Block placed	Blocks	Placing the block	block.wood.place	subtitles.block.generic.place	1.0	0.8	16
	Footsteps	Blocks	Walking on the block	block.wood.step	subtitles.block.generic.footsteps	0.15	1.0	16

Data values

ID

Java Edition:

Name	Namespaced ID	Translation key
Oak Slab	oak_slab	block.minecraft.oak_slab
Spruce Slab	spruce_slab	block.minecraft.spruce_slab
Birch Slab	birch_slab	block.minecraft.birch_slab
Jungle Slab	jungle_slab	block.minecraft.jungle_slab
Acacia Slab	acacia_slab	block.minecraft.acacia_slab
Dark Oak Slab	dark_oak_slab	block.minecraft.dark_oak_slab
Crimson Slab	crimson_slab	block.minecraft.crimson_slab
Warped Slab	warped_slab	block.minecraft.warped_slab
Stone Slab	stone_slab	block.minecraft.stone_slab
Smooth Stone Slab	smooth_stone_slab	block.minecraft.smooth_stone_slab
Granite Slab	granite_slab	block.minecraft.granite_slab
Polished Granite Slab	polished_granite_slab	block.minecraft.polished_granite_slab
Diorite Slab	diorite_slab	block.minecraft.diorite_slab
Polished Diorite Slab	polished_diorite_slab	block.minecraft.polished_diorite_slab
Andesite Slab	andesite_slab	block.minecraft.andesite_slab
Polished Andesite Slab	polished_andesite_slab	block.minecraft.polished_andesite_slab
Cobblestone Slab	cobblestone_slab	block.minecraft.cobblestone_slab
Mossy Cobblestone Slab	mossy_cobblestone_slab	block.minecraft.mossy_cobblestone_slab
Stone Brick Slab	stone_brick_slab	block.minecraft.stone_brick_slab
Mossy Stone Brick Slab	mossy_stone_brick_slab	block.minecraft.mossy_stone_brick_slab
Brick Slab	brick_slab	block.minecraft.brick_slab
End Stone Brick Slab	end_stone_brick_slab	block.minecraft.end_stone_brick_slab
Nether Brick Slab	nether_brick_slab	block.minecraft.nether_brick_slab
Red Nether Brick Slab	red_nether_brick_slab	block.minecraft.red_nether_brick_slab
Sandstone Slab	sandstone_slab	block.minecraft.sandstone_slab
Cut Sandstone Slab	cut_sandstone_slab	block.minecraft.cut_sandstone_slab
Smooth Sandstone Slab	smooth_sandstone_slab	block.minecraft.smooth_sandstone_slab
Red Sandstone Slab	red_sandstone_slab	block.minecraft.red_sandstone_slab
Cut Red Sandstone Slab	cut_red_sandstone_slab	block.minecraft.cut_red_sandstone_slab
Smooth Red Sandstone Slab	smooth_red_sandstone_slab	block.minecraft.smooth_red_sandstone_slab
Quartz Slab	quartz_slab	block.minecraft.quartz_slab
Smooth Quartz Slab	smooth_quartz_slab	block.minecraft.smooth_quartz_slab
Purpur Slab	purpur_slab	block.minecraft.purpur_slab
Prismarine Slab	prismarine_slab	block.minecraft.prismarine_slab
Prismarine Brick Slab	prismarine_brick_slab	block.minecraft.prismarine_brick_slab
Dark Prismarine Slab	dark_prismarine_slab	block.minecraft.dark_prismarine_slab
Petrified Oak Slab	petrified_oak_slab	block.minecraft.petrified_oak_slab
Blackstone Slab	blackstone_slab	block.minecraft.blackstone_slab
Polished Blackstone Slab	polished_blackstone_slab	block.minecraft.polished_blackstone_slab
Polished Blackstone Brick Slab	polished_blackstone_brick_slab	block.minecraft.polished_blackstone_brick_slab

Bedrock Edition:

Name	Namespaced ID	Numeric ID	Translation key
Double Wooden Slabs	double_wooden_slab	157	tile.double_wooden_slab.name
Wooden Slabs	wooden_slab	158	tile.wooden_slab.name
Double Crimson Slab	crimson_double_slab	521	tile.crimson_double_slab.name
Crimson Slab	crimson_slab	519	tile.crimson_slab.name
Double Warped Slab	warped_double_slab	522	tile.warped_double_slab.name
Warped Slab	warped_slab	520	tile.warped_slab.name
Double Stone Slabs (1)	double_stone_slab	43	tile.double_stone_slab.name
Stone Slabs (1)	stone_slab	44	tile.stone_slab.name
Double Stone Slabs (2)	double_stone_slab2	181	tile.double_stone_slab2.name
Stone Slabs (2)	stone_slab2	182	tile.stone_slab2.name
Double Stone Slabs (3)	double_stone_slab3	422	tile.double_stone_slab3.name
Stone Slabs (3)	stone_slab3	417	tile.stone_slab3.name
Double Stone Slabs (4	double_stone_slab4	423	tile.double_stone_slab4.name
Stone Slabs (4)	stone_slab4	421	tile.stone_slab4.name
Double Blackstone Slab	blackstone_double_slab	?	tile.blackstone_double_slab.name
Blackstone Slab	blackstone_slab	?	tile.blackstone_slab.name
Double Polished Blackstone Slab	polished_blackstone_double_slab	?	tile.polished_blackstone_double_slab.name
Polished Blackstone Slab	polished_blackstone_slab	?	tile.polished_blackstone_slab.name
Double Polished Blackstone Brick Slab	polished_blackstone_brick_double_slab	?	tile.polished_blackstone_brick_double_slab.name
Polished Blackstone Brick Slab	polished_blackstone_brick_slab	?	tile.polished_blackstone_brick_slab.name

Block data

See also: Data values

In Bedrock Edition, slabs use the following data values:

Double stone slab

	DV	Description
	0	Double Stone Slab
	1	Double Sandstone Slab
	2	Double Wooden Slab
	3	Double Cobblestone Slab
	4	Double Bricks Slab
	5	Double Stone Bricks Slab
	6	Double Quartz Slab
	7	Double Nether Brick Slab
	8	Double Upper Stone Slab
	9	Double Upper Sandstone Slab
	10	Double Upper Wooden Slab
	11	Double Upper Cobblestone Slab
	12	Double Upper Bricks Slab
	13	Double Upper Stone Bricks Slab
	14	Double Upper Quartz Slab
	15	Double Upper Nether Brick Slab

Double stone slab 2

	DV	Description
	0	Double Red Sandstone Slab
	1	Double Purpur Slab
	2	Double Prismarine Slab
	3	Double Prismarine Bricks Slab
	4	Double Dark Prismarine Slab
	5	Double Mossy cobblestone Slab
	6	Double Smooth Sandstone Slab
	7	Double Red Nether Brick Slab
	8	Double Upper Red Sandstone Slab
	9	Double Upper Purpur Slab
	10	Double Upper Prismarine Slab
	11	Double Upper Prismarine Bricks Slab
	12	Double Upper Dark Prismarine Slab
	13	Double Upper Mossy cobblestone Slab
	14	Double Upper Smooth Sandstone Slab
	15	Double Upper Red Nether Brick Slab

Double stone slab 3

	DV	Description
	0	Double End Stone Brick Slab
	1	Double Smooth Red Sandstone Slab
	2	Double Polished Andesite Slab
	3	Double Andesite Slab
	4	Double Diorite Slab
	5	Double Polished Diorite Slab
	6	Double Granite Slab
	7	Double Polished Granite Slab
	8	Double Upper End Stone Brick Slab
	9	Double Upper Smooth Red Sandstone Slab
	10	Double Upper Polished Andesite Slab
	11	Double Upper Andesite Slab
	12	Double Upper Diorite Slab
	13	Double Upper Polished Diorite Slab
	14	Double Upper Granite Slab
	15	Double Upper Polished Granite Slab

Double stone slab 4

	DV	Description
	0	Double Mossy Stone Brick Slab
	1	Double Smooth Quartz Slab
	2	Double Stone Slab
	3	Double Cut Sandstone Slab
	4	Double Cut Red Sandstone Slab
	8	Double Upper Mossy Stone Brick Slab
	9	Double Upper Smooth Quartz Slab
	10	Double Upper Stone Slab
	11	Double Upper Cut Sandstone Slab
	12	Double Upper Cut Red Sandstone Slab

Stone slab

	DV	Description
	0	Smooth Stone Slab
	1	Sandstone Slab
	2	Wooden Slab
	3	Cobblestone Slab
	4	Bricks Slab
	5	Stone Bricks Slab
	6	Quartz Slab
	7	Nether Brick Slab
	8	Upper Smooth Stone Slab
	9	Upper Sandstone Slab
	10	Upper Wooden Slab
	11	Upper Cobblestone Slab
	12	Upper Bricks Slab
	13	Upper Stone Bricks Slab
	14	Upper Quartz Slab
	15	Upper Nether Brick Slab

Stone slab 2

	DV	Description
	0	Red Sandstone Slab
	1	Purpur Slab
	2	Prismarine Slab
	3	Dark Prismarine Slab
	4	Prismarine Bricks Slab
	5	Mossy cobblestone Slab
	6	Smooth Sandstone Slab
	7	Red Nether Brick Slab
	8	Upper Red Sandstone Slab
	9	Upper Purpur Slab
	10	Upper Prismarine Slab
	11	Upper Dark Prismarine Slab
	12	Upper Prismarine Bricks Slab
	13	Upper Mossy cobblestone Slab
	14	Upper Smooth Sandstone Slab
	15	Upper Red Nether Brick Slab

Stone slab 3

	DV	Description
	0	End Stone Brick Slab
	1	Smooth Red Sandstone Slab
	2	Polished Andesite Slab
	3	Andesite Slab
	4	Diorite Slab
	5	Polished Diorite Slab
	6	Granite Slab
	7	Polished Granite Slab
	8	Upper End Stone Brick Slab
	9	Upper Smooth Red Sandstone Slab
	10	Upper Polished Andesite Slab
	11	Upper Andesite Slab
	12	Upper Diorite Slab
	13	Upper Polished Diorite Slab
	14	Upper Granite Slab
	15	Upper Polished Granite Slab

Stone slab 4

	DV	Description
	0	Mossy Stone Brick Slab
	1	Smooth Quartz Slab
	2	Stone Slab
	3	Cut Sandstone Slab
	4	Cut Red Sandstone Slab
	8	Upper Mossy Stone Brick Slab
	9	Upper Smooth Quartz Slab
	10	Upper Stone Slab
	11	Upper Cut Sandstone Slab
	12	Upper Cut Red Sandstone Slab

Double wood slab

	DV	Description
	0	Double Oak Wood Slab
	1	Double Spruce Wood Slab
	2	Double Birch Wood Slab
	3	Double Jungle Wood Slab
	4	Double Acacia Wood Slab
	5	Double Dark Oak Wood Slab
	8	Double Upper Oak Wood Slab
	9	Double Upper Spruce Wood Slab
	10	Double Upper Birch Wood Slab
	11	Double Upper Jungle Wood Slab
	12	Double Upper Acacia Wood Slab
	13	Double Upper Dark Oak Wood Slab

Wood slab

	DV	Description
	0	Oak Wood Slab
	1	Spruce Wood Slab
	2	Birch Wood Slab
	3	Jungle Wood Slab
	4	Acacia Wood Slab
	5	Dark Oak Wood Slab
	8	Upper Oak Wood Slab
	9	Upper Spruce Wood Slab
	10	Upper Birch Wood Slab
	11	Upper Jungle Wood Slab
	12	Upper Acacia Wood Slab
	13	Upper Dark Oak Wood Slab

Crimson, warped, blackstone, polished blackstone and polished blackstone brick slab

^{[more information needed]}

Block states

See also: Block states

Java Edition:

Name	Default value	Allowed values	Description
type	bottom	bottom top	Where the slab is within its block.
		double	The block is a double slab.
waterlogged	false	false true	Whether or not there's water in the same place as this slab.

Bedrock Edition:
Stone slab and double stone slab

Name	Default value	Allowed values	Description
stone_slab_type	smooth_stone	brick cobblestone nether_brick quartz sandstone smooth_stone stone_brick wood	The type of slab this is.
top_slot_bit	false	false true	If this slab is an upper slab.

Wood slab and double wood slab

Name	Default value	Allowed values	Description
top_slot_bit	false	false true	If this slab is an upper slab.
wood_type	oak	acacia birch dark_oak jungle oak spruce	The type of slab this is.

Stone slab 2 and double stone slab 2

Name	Default value	Allowed values	Description
stone_slab_type_2	red_sandstone	mossy_cobblestone prismarine_brick prismarine_dark prismarine_rough purpur red_nether_brick red_sandstone smooth_sandstone	The type of slab this is.
top_slot_bit	false	false true	If this slab is an upper slab.

Stone slab 3 and double stone slab 3

Name	Default value	Allowed values	Description
stone_slab_type_3	end_stone_brick	andesite diorite end_stone_brick granite polished_andesite polished_diorite polished_granite smooth_red_sandstone	The type of slab this is.
top_slot_bit	false	false true	If this slab is an upper slab.

Stone slab 4 and double stone slab 4

Name	Default value	Allowed values	Description
stone_slab_type_4	mossy_stone_brick	cut_red_sandstone cut_sandstone mossy_stone_brick smooth_quartz stone	The type of slab this is.
top_slot_bit	false	false true	If this slab is an upper slab.

History

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					Stone slabs have been introduced to the game.
					Stone slabs can be obtained by mining coal ore because of the lack of inventory and crafting.
					Slabs were originally called stairs.
Java Edition Indev
0.31		20100129			Slabs have now received a crafting recipe: 3 slabs from 3 cobblestone.
					Slabs no longer drop from coal ore.
Java Edition Beta
1.3					Added sandstone, "wooden", cobblestone and smooth stone slabs as variants of the stone slabs. All had the same properties as stone slabs, apart from using different textures.
					Smooth stone double slab are obtainable only through inventory editing, and they use data the data value "4". These slabs are converted into brick slab when upgrading to Beta 1.8.
					The original wooden slabs have to be mined with a pickaxe to collect, were not affected by fire, and had stronger blast resistance than planks, making them a useful building material. On current versions, this slab can be obtained from the Creative inventory or by using commands. The item tooltip now says "Petrified Oak Slab" rather than "Oak Slab".
					Before the additional slabs were added, a double stone slab would yield only one slab when broken. Since this update, all double slabs now yield 2 of their respective single slabs when broken. Destroying double slabs with TNT, however, still yields only single slabs (when the slabs aren't simply destroyed by the explosion).
					Before Beta 1.3 came out, stone slabs were made with cobblestone instead of stone, but this update has now introduced cobblestone slabs to the game and changed the recipes for pressure plates and stone slabs, so that there wouldn't be any conflicting recipes.
1.7					Bottom slabs now use the bottom half of the double slab texture rather than the top.
					The texture of cobblestone slabs has been changed.
1.8		Pre-release			Added the stone brick and bricks slabs.
					Smooth stone double slabs now use the data value "6".
					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		Beta 1.9 Prerelease 5			The textures of bricks and planks have been changed, and by extension that of the slabs.
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. The prior restriction was likely due to the fact that the slab types were differentiated by their damage values instead of by different data values, similar to wood, coal or charcoal, and colored wool.
1.2.4		release			The texture of sandstone slabs has been changed slightly, altough it is only visible in the double and bottom variants.
1.3.1		12w17a			New slabs have been added for the four different types of wood planks, replacing the old wooden oak/"stone" slab. These new slabs are vulnerable to fire, and can be collected faster with an axe than with a pickaxe. Wooden slabs already crafted or placed in the world remain the old 'stone' type.
		12w21a			Sandstone slabs now generate in desert temples.
		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 and stairs 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.
1.4.6		November 28, 2012			Jeb tweeted a picture of himself crafting nether brick slabs.
		12w49a			Added nether brick slabs.
					The addition of nether brick slabs has now caused the smooth stone double slab to change its data value to 43:7.
1.5		January 22, 2013			Jeb states that the "smooth stone full half-slab" is to be re-implemented with a data value of 43:8. Other slabs with data values of 43:9-43:15 are also to use the top texture on all sides, resulting in a "smooth sandstone block" with a data value of 43:9. He also stated that they may be obtained legitimately later.
		13w01a			Wooden Slabs can now be used to craft daylight sensors.
		13w02a			Added quartz slabs, featuring the top quartz texture on all six sides. The formerly unused slab type, known as the smooth stone slab, has been removed from the game. Its data values have been replaced with the nether quartz slab.
		13w04a			The smooth stone double slab has been re-implemented with a data value of 43:8.
					The smooth sandstone double slab has been added, with a data value of 43:9.
					Seamless data values of 43:10-43:15 have been added, but are unused and appear identical to their normal counterparts.
		13w09c			Quartz slabs and double slabs now use the top, side and bottom textures of the block of quartz.
					The quartz slab's seamless counterpart, with a data value of 43:15, retains the top texture on all 6 sides.
1.7.2		1.7			Added acacia and dark oak slabs.
1.8		14w02a			Stone brick slabs can now be used to craft chiseled stone bricks.
					Stone slabs can now be crafted using granite, diorite, andesite, or their polished counterparts.
		14w25a			Double stone slabs and double wooden slabs can no longer be obtained as an item.
		14w32a			Added red sandstone slabs and double slabs, as well as smooth red sandstone double slabs.
					Armor stands are now crafted using any slab.
		14w32b			Armor stands can now be crafted only using stone slabs.
		14w33a			Stone slabs can no longer be crafted using granite, diorite, andesite, or their polished counterparts.
1.9		June 22, 2015			Jeb reveals purpur slabs on Instagram, with the words "MINECON 2015 HYPE!"
		15w31a			Added purpur slabs and double slabs.
		15w43a			A spruce slab now acts as the middle of a table generated within igloo basements.
1.11		16w39a			Oak, birch, spruce, stone, and cobblestone slabs now generate in woodland mansions.
April 17, 2018					Dinnerbone confirms that Java Edition 1.14 contains many new stairs and slabs.
1.13		17w47a			The different variant block states for stone_slab, stone_slab2, wooden_slab, purpur_slab, double_stone_slab, double_stone_slab2, double_wooden_slab and purpur_double_slab IDs have been split up and merged into their own IDs depending on variant.
					Old non-flammable wooden slabs, which are now called "Petrified oak slabs", have been re-implemented into the creative inventory.
					"Bricks slab" has been renamed to "Brick slab".
					"Stone bricks slab" has been renamed to "Stone brick slab".
					"<Wood type> wood slab" has been renamed to "<wood type> slab".
					Smooth double slabs, now smooth blocks, have added to the creative inventory.
					Smooth blocks now drop themselves, instead of slabs when mined.
					Prior to The Flattening, these blocks' numeral IDs were 43, 44, 125, 126, 181, 182, 204 and 205.
		18w07a			Added slabs for prismarine, prismarine bricks, and dark prismarine.
		18w10c			Water can now be placed on the same block as slabs.
		18w20a			"Prismarine Bricks Slab" has been renamed to "Prismarine Brick Slab."
1.13.1		18w32a			Purpur slabs can now be crafted with purpur pillars.
October 10, 2018					Dinnerbone tweets that there are to be 14 new slabs.
October 10, 2018					Polished diorite slabs are tweeted out by LadyAgnes.
1.14		18w43a			The textures of all slabs have been changed.
					Added andesite, polished andesite, diorite, polished diorite, granite, polished granite, mossy stone brick, mossy cobblestone, smooth sandstone, smooth red sandstone, smooth quartz, red nether brick, end stone brick slabs.
					"Stone Slab" has been renamed to "Smooth Stone Slab".
		18w44a			The textures for andesite, polished andesite, diorite, polished diorite, stone, smooth sandstone slabs have been changed.
		18w47a			The textures for oak, spruce, birch, jungle, acacia, dark oak, stone bricks, mossy stone bricks, nether bricks, red sandstone, and smooth red sandstone slabs have been changed.
		18w48a			Stone slabs are now use to craft grindstones.
		18w50a			Wood slabs are now used to craft barrels.
					The textures for spruce, cobblestone, mossy cobblestone, sandstone, smooth sandstone, red sandstone, and smooth red sandstone slabs have been changed.
		19w02a			Wood slabs are now used to craft lecterns.
		19w08a			The texture of diorite slabs has been changed.
					Smooth quartz now use the bottom texture of normal quartz blocks, rather than the top texture.
		19w12a			Added cut sandstone and cut red sandstone slabs.
		19w13a			Slabs no longer block light, except at their full faces.
		19w13b			The texture of quartz slabs has been changed.
Upcoming Java Edition
1.16		20w06a			Added crimson and warped slabs.
		20w15a			Added blackstone, polished blackstone, and polished blackstone brick slabs.
		20w16a			Blackstone and quartz slabs now generate as part of bastion remnants.
					Stone, mossy stone brick, stone brick, blackstone, polished blackstone brick and polished blackstone slabs can now generate as part of ruined portals.
Pocket Edition Alpha
0.1.0					Added stone slabs.
0.3.0					Added wood (original oak), brick and cobblestone slabs.
0.6.0					Added sandstone and 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.
0.7.3					Added quartz slabs.
					Wooden slabs can now be crafted during and after this update are now flammable. Existing wooden slabs (which have stone properties) are now tagged "Fake Wood Slab" and drop real wooden slabs.
0.8.0		build 2			Added birch, spruce and jungle wood slabs.
0.9.0		build 1			Added acacia and dark oak wood slabs.
					Stone slabs now generate naturally in villages.
		build 11			Added crafting recipe for jungle wood slabs.
?					The wooden slab names have been changed from "[woodtype] Slab" to "[woodtype] Wood Slab".
0.12.1		build 1			Added nether brick slabs.
0.13.0		build 1			Wooden slabs are now used to craft daylight sensors.
					Sandstone slabs now generate in desert temples.
0.14.0		build 1			Added red sandstone slabs.
0.14.2					The nether brick slab texture has been brightened.
Pocket Edition
1.0.0		alpha 0.17.0.1			Added purpur slabs.
					A spruce slab nows act as the middle of a table generated within igloo basements.
1.1.0		alpha 1.1.0.0			Oak, birch, spruce, stone, and cobblestone slabs now generate in woodland mansions.
Bedrock Edition
1.2.0		beta 1.2.0.2			Stone slabs are now used to craft armor stands.
1.4.0		beta 1.2.13.8			Added slabs for prismarine, prismarine brick and dark prismarine as part of Experimental Gameplay.
		beta 1.2.14.2			The slabs for prismarine, prismarine brick, and dark prismarine have been fully implemented.
1.9.0		beta 1.9.0.0			"Stone Slab" has been renamed to "Smooth Stone Slab".
					The textures of all slabs have been changed.
					Added andesite, polished andesite, diorite, polished diorite, granite, polished granite, mossy stone brick, mossy cobblestone, smooth sandstone, cut sandstone, smooth red sandstone, cut red sandstone, smooth quartz, red nether brick, and end stone brick slabs.
					Sandstone and red sandstone slabs can now be crafted only using regular sandstone.
					Smooth stone slabs now require smooth stone to craft them.
1.10.0		beta 1.10.0.3			The textures of slabs have been changed.
					Cobblestone, mossy cobblestone, and dark oak slabs now generate in pillager outposts.
					Smooth sandstone slabs now generate in new desert villages.
					Wood slabs can now be used to craft composters, barrels and lecterns.
					Stone slabs can now be used to craft grindstone.
1.12.0		beta 1.12.0.2			Single slabs now only block sky light.
Upcoming Bedrock Edition
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.
					Quartz slabs now generate as part of bastion remnants.
					Stone, mossy stone brick, stone brick, blackstone, nether brick slabs can now generate as part of ruined portals.
		beta 1.16.0.63			The texture of nether brick slabs now matches Java again.
Legacy Console Edition
TU1	CU1	1.0	Patch 1		Added stone, wood (original oak), sandstone and cobblestone slabs.
TU5					Added stone brick and brick slabs.
TU9					Added birch wood, spruce wood and nether brick slabs.
					Wooden slabs crafted during and after this update are now flammable and are broken with an axe instead of a pickaxe. Existing slabs (which have stone properties) are not stackable with the new slabs.
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.
TU27	CU15	1.18			Added acacia and dark oak wood slabs to the creative inventory.
TU46	CU36	1.38	Patch 15		Added purpur slabs.
TU69		1.76	Patch 38		Added slabs for prismarine, prismarine bricks and dark prismarine.
		1.88			The textures of all slabs has been changed.
					Added andesite, polished andesite, diorite, polished diorite, granite, polished granite, mossy stone brick slab, mossy cobblestone, smooth sandstone, smooth red sandstone, smooth quartz, red nether brick, end stone brick slabs.
					"Stone Slab" has been renamed to "Smooth Stone Slab".
		1.90			The textures of slabs have been changed.
New Nintendo 3DS Edition
0.1.0					Added slabs.
1.7.10					Added purpur slabs.

Issues

Issues relating to "Slab" are maintained on the bug tracker. Report issues there.

Trivia

• Any light directed through a slab does not affect any block's light values north of the source.
• Whereas 1×1 dents in a flat floor using slabs are darkened as one would expect, 1×1 dents created using 2×1 or 2×2 stairs darken less, due to having fewer surrounding solid blocks.
• When water or lava are on top of an upside-down slab, the water dripping particles appear in midair below the slab instead of from the slab itself, this was fixed in Java Edition 1.13-pre7, but is an intentional feature in Bedrock Edition.

Gallery

• 

  Naturally occurring smooth stone slabs in a butcher shop. (Before the Village and Pillage update)

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  Brick slabs.

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  Stone brick slabs.

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  Double smooth stone slab (left) compared to smooth stone.

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  Naturally occurring smooth stone slabs in a village blacksmith. (Before the Village and Pillage update)

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  First image of upside down slabs as shown on Jeb's Twitter.

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  Slabs used to create the impression of half-aligned full blocks.

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  All six types of wooden slabs.

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  Trapdoors on slabs.

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  Example of slab shelving by placing slabs below other slabs.

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  Smooth sandstone compared to smooth stone.

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  A petrified oak slab house with a netherrack fireplace.

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  Fake wooden slabs.

References

Redstone

View at: Template:Redstone/content [edit]

Blocks

View at: Template:Blocks/content [edit]