Opacity/Placement

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Bedrock information

Many transparent blocks exhibit unique behavior when it comes to being placed or being placed on. This page only covers blocks that exhibit unique behavior. For example, glass is not covered as everything can be placed on it. In addition, only blocks that need some sort of support are covered in the columns.

Placement on top of blocks[edit]

Block Block Being Placed
Button Lever Pressure Plate Rails Redstone Sign Snow Torch Cake Doors Lantern Repeater Comparator Bell Scaffolding Sea Pickle Banner
Block Being Placed On
Leaves No No No No No Yes Yes No Yes No No No No No No Yes Yes
Ice Yes Yes Yes Yes Yes Yes No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Anvil No No Yes No No Yes No Yes Yes No Yes No No No No Yes Yes
Bamboo No No No No No Yes No No Yes No No No No No No Yes Yes
Brewing Stand No No No No No Yes No No Yes No No No No No No No Yes
Cactus No No No No No Yes No No Yes No No No No No No No Yes
Cauldron No No Yes Yes No Yes No No Yes No No Yes Yes No No Yes Yes
Walls No No Yes No No Yes No Yes Yes No Yes No No No No Yes Yes
Doors No No No No No Yes No No Yes No No No No No No Yes Yes
Dragon Egg No No Yes No No Yes No Yes Yes No Yes No No No No Yes Yes
End Rod No No Yes No No No No Yes No No Yes No No No No Yes No
Farmland No No No No No Yes[n 1] No No Yes[n 1] No No No No No No No Yes[n 1]
Fences No No Yes No No Yes No Yes Yes No Yes No No No No Yes Yes
Fence Gates No No Yes No No Yes No Yes Yes No Yes No No No No Yes Yes
Glass Panes No No Yes No No Yes No Yes Yes No Yes No No No No Yes Yes
Hopper No No Yes Yes Yes Yes No No Yes No No Yes Yes No No Yes Yes
Iron Bars No No Yes No No Yes No Yes Yes No Yes No No No No Yes Yes
Ladder No No No No No No No No No No No No No No No Yes No
Lectern No No No No No Yes No No Yes No No No No No No No Yes
Snow Layer (2–8) No No No No No No Yes No No No No No No No No No No
Grass Path No No No No No Yes[n 1] No No Yes[n 1] No No No No No No No Yes[n 1]
Portal Frame (no eye) No No No No No Yes No No Yes No No No No No No No Yes
Portal Frame (eye) No No Yes No No Yes No Yes Yes No Yes No No No No Yes Yes
Barrier Yes Yes Yes Yes Yes Yes No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Scaffolding Yes Yes Yes Yes Yes No Yes Yes No Yes Yes Yes Yes Yes Yes Yes No
Grindstone No No Yes No No Yes No Yes Yes No Yes No No No No Yes Yes
Bell No No Yes No No Yes No Yes Yes No Yes No No No No Yes Yes
Composter No No Yes Yes No Yes No No Yes No No Yes Yes No No Yes Yes
Soul Sand No No No No No Yes No No Yes No No No No No No No Yes
Cobweb No No No No No Yes No No Yes No No No No No No No Yes
Chorus Flower Yes Yes Yes Yes Yes No Yes Yes No Yes Yes Yes Yes Yes Yes Yes No

Everything can be placed on:

  1. a b c d e f Block will be converted to dirt

Placement on the side of blocks[edit]

Block Block Being Placed
Ladder Buttons Lever Signs Torch Vines Bell Banners Tripwire Hook
Block Being Placed On
Leaves No No No Yes No Yes No Yes No
Anvil No No No Yes No No No Yes No
Bamboo No No No Yes No No No Yes No
Brewing Stand No No No Yes No No No Yes No
Cactus No No No Yes[n 1] No No No Yes[n 1] No
Cauldron No No No Yes No No No Yes No
Walls No No No Yes No No No Yes No
Dragon Egg No No No Yes No No No Yes No
Farmland No No No Yes No No No Yes No
Fences No No No Yes No No No Yes No
Fence Gates No No No Yes No No No Yes No
Glass Panes No No No Yes No No No Yes No
Hopper No No No Yes No No No Yes No
Iron Bars No No No Yes No No No Yes No
Lectern No No No Yes No No No Yes No
Grass Path No No No Yes No No No Yes No
End Portal Frame No No No Yes No No No Yes No
Grindstone No No No Yes No No No Yes No
Bell No No No Yes No No No Yes No
Observer No Yes Yes Yes Yes Yes Yes Yes No
Soul Sand No No No Yes No No No Yes No
Cobweb No No No Yes No No No Yes No
Chorus Flower Yes[n 2] Yes[n 2] Yes[n 2] No Yes[n 2] Yes[n 2] Yes[n 2] No Yes[n 2]

Everything can be placed on:

Everything cannot be placed on:

  1. a b The block being placed on will be destroyed
  2. a b c d e f g The chorus flower may break, depending on its placement.

Placement on bottom of blocks[edit]

Block Block being placed
Lantern Bell Buttons Lever Vines
Block being placed on
Leaves No No No No Yes
Brewing Stand Yes No No No No
Walls Yes No No No No
End Rod Yes No No No No
Farmland Yes Yes Yes Yes No
Fences Yes No No No No
Fence Gates Yes No No No No
Glass Panes Yes No No No No
Hopper Yes No No No No
Iron Bars Yes No No No No
Lectern Yes Yes Yes Yes No
Grass Path Yes Yes Yes Yes No
End Portal Frame Yes Yes Yes Yes No
Composter Yes Yes Yes Yes No
Soul Sand Yes Yes Yes Yes No

Everything can be placed on:

Everything cannot be placed on:

Doors and trapdoors[edit]

Doors and trapdoors behave in unique ways. The flat side of each block acts as an opaque surface, allowing anything to be placed on it. However, all other sides act as transparent blocks. Because of this, many blocks that can be placed on doors and trapdoors will not stay if the door or trapdoor is opened or closed.

Signs and banners can be placed anywhere on a door or a trapdoor and will never be destroyed unless the door or trapdoor itself is destroyed. Cakes and sea pickles can be placed on the tops of doors and trapdoors and will not be destroyed when the door or trapdoor opens and closes. Rails, redstone dust, redstone repeaters, and redstone comparators can only be placed on a closed trapdoor in the top half of a block, but will not be destroyed if the trapdoor is opened until the block is updated. All other blocks will be destroyed when the door or trapdoor changes states.

Shulker boxes[edit]

Shulker boxes typically act as a solid block in that they allow everything to be placed on them. However, many of these blocks will be destroyed when the shulker box is opened. This behavior is also dependent on the rotation of the shulker box.

Upwards-facing shulker boxes[edit]

Upwards facing shulker boxes do not destroy most transparent blocks placed on their tops or bottoms when opened. However, some blocks stop the opening of the box.

While most blocks placed on top of upwards facing shulker boxes, the same is not true for blocks placed on the sides. Signs are not destroyed, but the following blocks are.

Sideways-facing shulker boxes[edit]

The following blocks stop a sideways shulker box from opening when placed on their front

Sideways facing shulker boxes destroy the following blocks when opened.

Downwards-facing shulker boxes[edit]

The following blocks stop downwards facing shulker boxes from opening.

Downwards facing shulker boxes do not destroy any blocks placed on their tops or bottoms when opened. However, they do destroy some when placed on the sides.

Pistons[edit]

All transparent blocks can be placed on unextended pistons. However, many blocks cannot be placed on extended pistons and/or are destroyed when pistons extend or retract.

Upwards-facing pistons[edit]

All blocks (except for vines) can be placed on the top or bottom of an extended upwards facing pistons. Only signs and banners can be placed on the sides of extended upwards facing pistons. However, they destroy most blocks when extending or retracting.

Blocks destroyed on extention[n 1] Blocks destroyed on retraction Blocks that stop extention[n 2] Blocks not destroyed

Sideways-facing pistons[edit]

The following blocks can be placed on extended sideways pistons.

Blocks destroyed on extention[n 1] Blocks destroyed on retraction Blocks that stop extention[n 2] Blocks not destroyed

Downwards-facing pistons[edit]

All blocks (except vines) can be placed on the top and bottom of extended downward facing pistons. The only blocks that can be placed on the sides of extended downward facing pistons are signs.

Blocks destroyed on extention[n 1] Blocks destroyed on retraction Blocks not destroyed
  1. a b c If the block can be placed on an extended piston, it will also be broken on retraction.
  2. a b If the block is placed on the extended piston, it will be destroyed on retraction.