diff --git a/src/pocketmine/block/BlockFactory.php b/src/pocketmine/block/BlockFactory.php
index f213f1ed3..3e5a43e30 100644
--- a/src/pocketmine/block/BlockFactory.php
+++ b/src/pocketmine/block/BlockFactory.php
@@ -250,8 +250,8 @@ class BlockFactory{
 			//TODO: DAYLIGHT_DETECTOR_INVERTED
 			//TODO: RED_SANDSTONE
 			//TODO: RED_SANDSTONE_STAIRS
-			//TODO: DOUBLE_STONE_SLAB2
-			//TODO: STONE_SLAB2
+			self::registerBlock(new DoubleStoneSlab2());
+			self::registerBlock(new StoneSlab2());
 			self::registerBlock(new FenceGate(Block::SPRUCE_FENCE_GATE, 0, "Spruce Fence Gate"));
 			self::registerBlock(new FenceGate(Block::BIRCH_FENCE_GATE, 0, "Birch Fence Gate"));
 			self::registerBlock(new FenceGate(Block::JUNGLE_FENCE_GATE, 0, "Jungle Fence Gate"));
diff --git a/src/pocketmine/block/DoubleSlab.php b/src/pocketmine/block/DoubleSlab.php
new file mode 100644
index 000000000..f6bc91cff
--- /dev/null
+++ b/src/pocketmine/block/DoubleSlab.php
@@ -0,0 +1,47 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ *
+ *
+*/
+
+declare(strict_types=1);
+
+namespace pocketmine\block;
+
+use pocketmine\item\Item;
+use pocketmine\item\ItemFactory;
+
+abstract class DoubleSlab extends Solid{
+
+	public function __construct(int $meta = 0){
+		$this->meta = $meta;
+	}
+
+	abstract public function getSlabId() : int;
+
+	public function getName() : string{
+		return "Double " . BlockFactory::get($this->getSlabId(), $this->getVariant())->getName() . " Slab";
+	}
+
+	public function getDrops(Item $item) : array{
+		return [
+			ItemFactory::get($this->getSlabId(), $this->getVariant(), 2)
+		];
+	}
+
+}
\ No newline at end of file
diff --git a/src/pocketmine/block/DoubleStoneSlab.php b/src/pocketmine/block/DoubleStoneSlab.php
index 44982906d..438c45d74 100644
--- a/src/pocketmine/block/DoubleStoneSlab.php
+++ b/src/pocketmine/block/DoubleStoneSlab.php
@@ -24,15 +24,14 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\item\Item;
-use pocketmine\item\ItemFactory;
 use pocketmine\item\Tool;
 
-class DoubleStoneSlab extends Solid{
+class DoubleStoneSlab extends DoubleSlab{
 
 	protected $id = self::DOUBLE_STONE_SLAB;
 
-	public function __construct(int $meta = 0){
-		$this->meta = $meta;
+	public function getSlabId() : int{
+		return self::STONE_SLAB;
 	}
 
 	public function getHardness() : float{
@@ -43,25 +42,9 @@ class DoubleStoneSlab extends Solid{
 		return Tool::TYPE_PICKAXE;
 	}
 
-	public function getName() : string{
-		static $names = [
-			0 => "Stone",
-			1 => "Sandstone",
-			2 => "Wooden",
-			3 => "Cobblestone",
-			4 => "Brick",
-			5 => "Stone Brick",
-			6 => "Quartz",
-			7 => "Nether Brick"
-		];
-		return "Double " . $names[$this->getVariant()] . " Slab";
-	}
-
 	public function getDrops(Item $item) : array{
 		if($item->isPickaxe() >= Tool::TIER_WOODEN){
-			return [
-				ItemFactory::get(Item::STONE_SLAB, $this->getVariant(), 2)
-			];
+			return parent::getDrops($item);
 		}
 
 		return [];
diff --git a/src/pocketmine/block/DoubleStoneSlab2.php b/src/pocketmine/block/DoubleStoneSlab2.php
new file mode 100644
index 000000000..80d6e740e
--- /dev/null
+++ b/src/pocketmine/block/DoubleStoneSlab2.php
@@ -0,0 +1,34 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ *
+ *
+*/
+
+declare(strict_types=1);
+
+namespace pocketmine\block;
+
+class DoubleStoneSlab2 extends DoubleStoneSlab{
+
+	protected $id = self::DOUBLE_STONE_SLAB2;
+
+	public function getSlabId() : int{
+		return self::STONE_SLAB2;
+	}
+
+}
\ No newline at end of file
diff --git a/src/pocketmine/block/DoubleWoodenSlab.php b/src/pocketmine/block/DoubleWoodenSlab.php
index 05fd73155..087a651c4 100644
--- a/src/pocketmine/block/DoubleWoodenSlab.php
+++ b/src/pocketmine/block/DoubleWoodenSlab.php
@@ -23,16 +23,14 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
-use pocketmine\item\Item;
-use pocketmine\item\ItemFactory;
 use pocketmine\item\Tool;
 
-class DoubleWoodenSlab extends Solid{
+class DoubleWoodenSlab extends DoubleSlab{
 
 	protected $id = self::DOUBLE_WOODEN_SLAB;
 
-	public function __construct(int $meta = 0){
-		$this->meta = $meta;
+	public function getSlabId() : int{
+		return self::WOODEN_SLAB;
 	}
 
 	public function getHardness() : float{
@@ -42,23 +40,4 @@ class DoubleWoodenSlab extends Solid{
 	public function getToolType() : int{
 		return Tool::TYPE_AXE;
 	}
-
-	public function getName() : string{
-		static $names = [
-			0 => "Oak",
-			1 => "Spruce",
-			2 => "Birch",
-			3 => "Jungle",
-			4 => "Acacia",
-			5 => "Dark Oak"
-		];
-		return "Double " . ($names[$this->getVariant()] ?? "") . " Wooden Slab";
-	}
-
-	public function getDrops(Item $item) : array{
-		return [
-			ItemFactory::get(Item::WOODEN_SLAB, $this->getVariant(), 2)
-		];
-	}
-
 }
\ No newline at end of file
diff --git a/src/pocketmine/block/Slab.php b/src/pocketmine/block/Slab.php
new file mode 100644
index 000000000..8af41753a
--- /dev/null
+++ b/src/pocketmine/block/Slab.php
@@ -0,0 +1,125 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ *
+ *
+*/
+
+declare(strict_types=1);
+
+namespace pocketmine\block;
+
+use pocketmine\item\Item;
+use pocketmine\math\AxisAlignedBB;
+use pocketmine\math\Vector3;
+use pocketmine\Player;
+
+abstract class Slab extends Transparent{
+
+	public function __construct(int $meta = 0){
+		$this->meta = $meta;
+	}
+
+	abstract public function getDoubleSlabId() : int;
+
+	public function canBePlacedAt(Block $blockReplace, Vector3 $clickVector) : bool{
+		return parent::canBePlacedAt($blockReplace, $clickVector) or
+			(
+				$blockReplace->getId() === $this->getId() and
+				$blockReplace->getVariant() === $this->getVariant() and
+				(
+					(($blockReplace->getDamage() & 0x08) !== 0 and ($clickVector->y <= 0.5 or $clickVector->y === 1.0)) or //top slab, fill bottom half
+					(($blockReplace->getDamage() & 0x08) === 0 and ($clickVector->y >= 0.5 or $clickVector->y === 0.0)) //bottom slab, fill top half
+				)
+			);
+	}
+
+	public function place(Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $facePos, Player $player = null) : bool{
+		$this->meta &= 0x07;
+		if($face === Vector3::SIDE_DOWN){
+			if($blockClicked->getId() === $this->id and ($blockClicked->getDamage() & 0x08) === 0x08 and $blockClicked->getVariant() === $this->getVariant()){
+				$this->getLevel()->setBlock($blockClicked, BlockFactory::get($this->getDoubleSlabId(), $this->getVariant()), true);
+
+				return true;
+			}elseif($blockReplace->getId() === $this->id and $blockReplace->getVariant() === $this->getVariant()){
+				$this->getLevel()->setBlock($blockReplace, BlockFactory::get($this->getDoubleSlabId(), $this->getVariant()), true);
+
+				return true;
+			}else{
+				$this->meta |= 0x08;
+			}
+		}elseif($face === Vector3::SIDE_UP){
+			if($blockClicked->getId() === $this->id and ($blockClicked->getDamage() & 0x08) === 0 and $blockClicked->getVariant() === $this->getVariant()){
+				$this->getLevel()->setBlock($blockClicked, BlockFactory::get($this->getDoubleSlabId(), $this->getVariant()), true);
+
+				return true;
+			}elseif($blockReplace->getId() === $this->id and $blockReplace->getVariant() === $this->getVariant()){
+				$this->getLevel()->setBlock($blockReplace, BlockFactory::get($this->getDoubleSlabId(), $this->getVariant()), true);
+
+				return true;
+			}
+		}else{ //TODO: collision
+			if($blockReplace->getId() === $this->id){
+				if($blockReplace->getVariant() === $this->meta){
+					$this->getLevel()->setBlock($blockReplace, BlockFactory::get($this->getDoubleSlabId(), $this->getVariant()), true);
+
+					return true;
+				}
+
+				return false;
+			}else{
+				if($facePos->y > 0.5){
+					$this->meta |= 0x08;
+				}
+			}
+		}
+
+		if($blockReplace->getId() === $this->id and $blockClicked->getVariant() !== $this->getVariant()){
+			return false;
+		}
+		$this->getLevel()->setBlock($blockReplace, $this, true, true);
+
+		return true;
+	}
+
+	public function getVariantBitmask() : int{
+		return 0x07;
+	}
+
+	protected function recalculateBoundingBox() : ?AxisAlignedBB{
+
+		if(($this->meta & 0x08) > 0){
+			return new AxisAlignedBB(
+				$this->x,
+				$this->y + 0.5,
+				$this->z,
+				$this->x + 1,
+				$this->y + 1,
+				$this->z + 1
+			);
+		}else{
+			return new AxisAlignedBB(
+				$this->x,
+				$this->y,
+				$this->z,
+				$this->x + 1,
+				$this->y + 0.5,
+				$this->z + 1
+			);
+		}
+	}
+}
\ No newline at end of file
diff --git a/src/pocketmine/block/StoneSlab.php b/src/pocketmine/block/StoneSlab.php
index f1f1b285d..c5bb9cbbd 100644
--- a/src/pocketmine/block/StoneSlab.php
+++ b/src/pocketmine/block/StoneSlab.php
@@ -26,7 +26,7 @@ namespace pocketmine\block;
 use pocketmine\item\Item;
 use pocketmine\item\Tool;
 
-class StoneSlab extends WoodenSlab{
+class StoneSlab extends Slab{
 	const STONE = 0;
 	const SANDSTONE = 1;
 	const WOODEN = 2;
@@ -38,7 +38,9 @@ class StoneSlab extends WoodenSlab{
 
 	protected $id = self::STONE_SLAB;
 
-	protected $doubleId = self::DOUBLE_STONE_SLAB;
+	public function getDoubleSlabId() : int{
+		return self::DOUBLE_STONE_SLAB;
+	}
 
 	public function getHardness() : float{
 		return 2;
@@ -69,8 +71,4 @@ class StoneSlab extends WoodenSlab{
 
 		return [];
 	}
-
-	public function getFuelTime() : int{
-		return 0;
-	}
 }
\ No newline at end of file
diff --git a/src/pocketmine/block/StoneSlab2.php b/src/pocketmine/block/StoneSlab2.php
new file mode 100644
index 000000000..e143c73ff
--- /dev/null
+++ b/src/pocketmine/block/StoneSlab2.php
@@ -0,0 +1,44 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ *
+ *
+*/
+
+declare(strict_types=1);
+
+namespace pocketmine\block;
+
+class StoneSlab2 extends StoneSlab{
+	const TYPE_RED_SANDSTONE = 0;
+	const TYPE_PURPUR = 1;
+
+	protected $id = self::STONE_SLAB2;
+
+	public function getDoubleSlabId() : int{
+		return self::DOUBLE_STONE_SLAB2;
+	}
+
+	public function getName() : string{
+		static $names = [
+			self::TYPE_RED_SANDSTONE => "Red Sandstone",
+			self::TYPE_PURPUR => "Purpur"
+		];
+
+		return (($this->meta & 0x08) > 0 ? "Upper " : "") . ($names[$this->getVariant()] ?? "") . " Slab";
+	}
+}
\ No newline at end of file
diff --git a/src/pocketmine/block/WoodenSlab.php b/src/pocketmine/block/WoodenSlab.php
index b649b3dbc..d7ad65a24 100644
--- a/src/pocketmine/block/WoodenSlab.php
+++ b/src/pocketmine/block/WoodenSlab.php
@@ -23,22 +23,20 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
-use pocketmine\item\Item;
 use pocketmine\item\Tool;
-use pocketmine\math\AxisAlignedBB;
-use pocketmine\math\Vector3;
-use pocketmine\Player;
 
-class WoodenSlab extends Transparent{
+class WoodenSlab extends Slab{
 
 	protected $id = self::WOODEN_SLAB;
 
-	protected $doubleId = self::DOUBLE_WOODEN_SLAB;
-
 	public function __construct(int $meta = 0){
 		$this->meta = $meta;
 	}
 
+	public function getDoubleSlabId() : int{
+		return self::DOUBLE_WOODEN_SLAB;
+	}
+
 	public function getHardness() : float{
 		return 2;
 	}
@@ -55,97 +53,10 @@ class WoodenSlab extends Transparent{
 		return (($this->meta & 0x08) === 0x08 ? "Upper " : "") . ($names[$this->getVariant()] ?? "") . " Wooden Slab";
 	}
 
-	protected function recalculateBoundingBox() : ?AxisAlignedBB{
-
-		if(($this->meta & 0x08) > 0){
-			return new AxisAlignedBB(
-				$this->x,
-				$this->y + 0.5,
-				$this->z,
-				$this->x + 1,
-				$this->y + 1,
-				$this->z + 1
-			);
-		}else{
-			return new AxisAlignedBB(
-				$this->x,
-				$this->y,
-				$this->z,
-				$this->x + 1,
-				$this->y + 0.5,
-				$this->z + 1
-			);
-		}
-	}
-
-	public function canBePlacedAt(Block $blockReplace, Vector3 $clickVector) : bool{
-		return parent::canBePlacedAt($blockReplace, $clickVector) or
-			(
-				$blockReplace->getId() === $this->getId() and
-				$blockReplace->getVariant() === $this->getVariant() and
-				(
-					(($blockReplace->getDamage() & 0x08) !== 0 and ($clickVector->y <= 0.5 or $clickVector->y === 1.0)) or //top slab, fill bottom half
-					(($blockReplace->getDamage() & 0x08) === 0 and ($clickVector->y >= 0.5 or $clickVector->y === 0.0)) //bottom slab, fill top half
-				)
-			);
-	}
-
-	public function place(Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $facePos, Player $player = null) : bool{
-		$this->meta &= 0x07;
-		if($face === Vector3::SIDE_DOWN){
-			if($blockClicked->getId() === $this->id and ($blockClicked->getDamage() & 0x08) === 0x08 and $blockClicked->getVariant() === $this->getVariant()){
-				$this->getLevel()->setBlock($blockClicked, BlockFactory::get($this->doubleId, $this->getVariant()), true);
-
-				return true;
-			}elseif($blockReplace->getId() === $this->id and $blockReplace->getVariant() === $this->getVariant()){
-				$this->getLevel()->setBlock($blockReplace, BlockFactory::get($this->doubleId, $this->getVariant()), true);
-
-				return true;
-			}else{
-				$this->meta |= 0x08;
-			}
-		}elseif($face === Vector3::SIDE_UP){
-			if($blockClicked->getId() === $this->id and ($blockClicked->getDamage() & 0x08) === 0 and $blockClicked->getVariant() === $this->getVariant()){
-				$this->getLevel()->setBlock($blockClicked, BlockFactory::get($this->doubleId, $this->getVariant()), true);
-
-				return true;
-			}elseif($blockReplace->getId() === $this->id and $blockReplace->getVariant() === $this->getVariant()){
-				$this->getLevel()->setBlock($blockReplace, BlockFactory::get($this->doubleId, $this->getVariant()), true);
-
-				return true;
-			}
-		}else{ //TODO: collision
-			if($blockReplace->getId() === $this->id){
-				if($blockReplace->getVariant() === $this->meta){
-					$this->getLevel()->setBlock($blockReplace, BlockFactory::get($this->doubleId, $this->getVariant()), true);
-
-					return true;
-				}
-
-				return false;
-			}else{
-				if($facePos->y > 0.5){
-					$this->meta |= 0x08;
-				}
-			}
-		}
-
-		if($blockReplace->getId() === $this->id and $blockClicked->getVariant() !== $this->getVariant()){
-			return false;
-		}
-		$this->getLevel()->setBlock($blockReplace, $this, true, true);
-
-		return true;
-	}
-
 	public function getToolType() : int{
 		return Tool::TYPE_AXE;
 	}
 
-	public function getVariantBitmask() : int{
-		return 0x07;
-	}
-
 	public function getFuelTime() : int{
 		return 300;
 	}