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Block Components Documentation - minecraft:support

Defines the support shape of the block. Currently only allows for blocks to have the same shape as a Vanilla fence and Vanilla stair. To work with custom stairs, requires the use of "minecraft:vertical_half" and "minecraft:cardinal_direction" or "minecraft:facing_direction" which can be set through the "minecraft:placement_direction" block trait. Custom blocks without this component will default to unit cube support. The type of support shape for this block. Currently, the options are: "fence" and "stair".

Note

Defines how this block provides structural support. Currently accepts shape fence or stair. Pair with the minecraft:placement_direction trait (and minecraft:vertical_half) for custom stair-shaped supports.

Note

Available without the Upcoming Creator Features experimental toggle for block format versions 1.26.0 or higher.

Note

This item requires a format version of at least 1.21.130.

Block Support Properties

Name Default Value Type Description Example Values
shape not set Shape choices Required field. The type of support shape for this block. Block Black Concrete Stairs: "stair"

Shape choices

Value Title Description
fence Fence
stair Stair

Samples

Block Black Concrete Stairs

"minecraft:support": {
  "shape": "stair"
}