A block can be considered solid if it has a collision box that players, mobs, or other entities cannot move through. For a block to be solid it also has to not be broken by flowing liquids. Blocks such as iron blocks are solid, and cobwebs are non-solid, because players can move through them slowly and water flow can break them.
Solid blocks are also considered when generating structures.
List of blocks
List of solid blocks
The following blocks are all solid blocks. They are categorized by their material.
|Unknown||Not applied to any blocks.|
List of non-solid blocks
These blocks consist of any block that is not solid.
|Replacable water plant|
Reason: list the ones in bedrock edition (due to a bug, they are different)
Most solid blocks are 1 meter high, but certain blocks have non-standard block heights.
A player can automatically step up from a lower to a higher height, if the difference is at most 0.6 (3⁄5) of a block. From ground level, this is anything the height of a chain or less.
A player can fit through spaces as small as 1.8125 (2 - 3⁄16) blocks high, since players are 1.8 blocks tall. This allows players to fit through a 2-block gap with a floor as high as a trapdoor.
When sneaking, a player can fit through spaces as small as 1.75 (2 - 1⁄4) blocks high,[Bedrock Edition only] or 1.5 blocks,[Java Edition only] since sneaking players are 1.65 blocks or 1.5 blocks tall, respectively. In Bedrock, this allows players to fit through a 2-block gap with a floor as high as 3 layers of snow. In Java, players can fit through a 2-block space with a floor as high as a slab.
When gliding with elytra, a player can fit through spaces as small as 0.625 (1 - 3⁄8) blocks high, since gliding players are 0.6 blocks tall. This allows players to fit through a 1-block gap with a floor as high as 4 layers of snow, or a flower pot, or a daylight sensor.
Note that doors, although appearing to be one 2-meter-high block, are actually composed of two (top and bottom) 1-meter-high blocks.
Here is a list of blocks with non-standard heights, from tallest to shortest in height:
|1.5||1 1⁄2||24||150||1500||Open shulker boxes|
|Fences, Fence gates, Walls [note 1]|
|0.9375||15⁄16||15||93.75||937.5||Grass path, Farmland|
|Bell attached to walls, Cactus, Honey Block [note 1]|
|0.875||7⁄8||14||87.5||875||Soul sand [note 2] Lectern, 8 layers of snow|
|Chest, Ender chest, Sideways-oriented Grindstone, Trapped chest, Top of brewing stand [note 1]|
|0.8125||13⁄16||13||81.25||812.5||End portal frame without eye of ender|
|Chorus plant [note 1]|
|Edge of Grindstone|
|0.75||3⁄4||12||75||750||Enchantment table, 7 layers of snow|
|Cocoa bean plant, Mob Heads on wall [note 1]|
|0.6875||11⁄16||11||68.75||687.5||Conduit [note 1]|
|0.625||5⁄8||10||62.5||625||6 layers of snow|
|Inside of hopper, Sideways-oriented end rod [note 1]|
|0.59375||19⁄32||91⁄2||59.375||593.75||Sideways-oriented Chain [note 1]|
|Lantern on ground [note 1]|
|0.5||1⁄2||8||50||500||Bottom slabs, 5 layers of snow|
|Mob Heads on ground, Bottom part of stairs, Cake [note 1]|
|Turtle egg, 4 [note 1]|
|0.375||3⁄8||6||37.5||375||Daylight sensor, 4 layers of snow|
|Flower pot, 1-3 [note 1]|
|0.3125||5⁄16||5||31.25||312.5||Inner part of an anvil's base [note 1]|
|0.25||1⁄4||4||25||250||3 layers of snow, Piston Head (Arm)[note 1]|
|Inside of cauldron, Outer part of an anvil's base [note 1]|
|0.125||1⁄8||2||12.5||125||Redstone repeater, Redstone comparator, Bottom of floating Scaffolding, Base of Lectern, 2 layers of snow|
|Base of brewing stand, Inside of composter [note 1]|
|0.09375||3⁄32||11⁄2||9.375||93.75||Lily pad [note 1]|
- These blocks are also thinner, i.e. their length and width are less than that of a full block.
- Soul sand has inner collision boxes every eighth of a block, so there is a collision box at 1/8, 1/4, 3/8, 1/2, 5/8, and 3/4
|Java Edition pre-Classic|
|Cave game tech test||Added grass blocks and cobblestone, the first two types of solid blocks.|
|Solid blocks were the only available type of block, until rd-161348, when the first legitimately-obtainable non-solid blocks (saplings) were added.|