ModsFinder

Nemo's Vertical Slabs

by NemoNotFound

Players building with slabs get a vertical half-block for walls, doorways and facades, since Nemo's Vertical Slabs gives each slab block a vertical counterpart.

FabricForgeNeoForgeClient and serverMIT LicenseOpen source1.20.1 – 26.3

What it does

Every slab block in the game gets a vertical slab variant, so a single block can fill a narrow gap or sit flush against a wall. The vertical version is crafted and placed like any other block. Nemo's Vertical Slabs also covers blocks from the Nemo's Mossy Blocks mod, and the author plans support for further mods added later.

The mod is aimed at builders who decorate houses, castles and town streets, and at players who want finer control over the shape of their structures. It has no items, machines or world generation of its own, and the author has asked for suggestions for new content.

Fabric API is required on Fabric. Biomes O' Plenty, Nemo's Mossy Blocks and Oh The Biomes We've Gone are optional and add their own blocks to the vertical slab set. The mod is published for Fabric, Forge and NeoForge, with files covering 1.20.1 – 26.3, and it is released under the MIT License as open source.

Key features

  1. Vertical slab variants

    Each slab block in the game has a vertical slab counterpart that can be placed on any face of a block.

  2. Optional block support

    Blocks from Nemo's Mossy Blocks, Biomes O' Plenty and Oh The Biomes We've Gone receive vertical slabs when those mods are present.

  3. Crafting and placement

    Counterparts are crafted from their full-block versions and placed with the same interaction as regular slabs.

Compatibility

Latest build for each game version and loader.

26.x3 of 3 versions with builds
26.326.3-2.3.5Not availableNot available
26.226.2-2.3.5Not availableNot available
26.1.226.1.2-2.3.2Not availableNot available
1.21.x9 of 9 versions with builds
1.21.111.21.11-2.3Not availableNot available
1.21.101.21.10-2.2Not availableNot available
1.21.81.21.8-2.21.21.8-2.11.21.8-2.1
1.21.51.21.5-1.2.2Not availableNot available
1.21.41.21.4-1.2.2Not availableNot available
1.21.31.21.3-1.2.2Not availableNot available
1.21.21.21.3-1.1.3Not availableNot available
1.21.11.21.1-1.2.2Not availableNot available
1.211.21.1-1.1.3Not availableNot available
1.20.x1 of 1 version with builds
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 1

Fabric APILightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.
Required

Optional 3

Biomes O' PlentyAdds 50+ unique biomes to enhance your world, with new trees, flowers, and more!
Optional
Nemo's Mossy BlocksNemo's Mossy Blocks adds more mossy blocks, introduces new moss types, and lets you shear mossy blocks!
Optional
Oh The Biomes We've GoneAn astounding sequel to the original BYG mod for 1.20.1+ with over 50+ biomes ranging from the magical to the realistic and all breathtaking!
Optional

Required by 1 mod

Use cases

Building facades

A vertical slab can finish the edge of a wall where a full block would protrude too far.

Narrow gaps

Thin wall pieces, window frames and trim fit into spaces that regular slabs leave open.

Who it’s for: Builders and survival players who decorate structures with slabs and want more shape options. Server owners running several block-adding mods can use the optional support for those blocks.

Questions

Does Nemo's Vertical Slabs need Fabric API?

Yes, on Fabric Fabric API is required. Forge and NeoForge builds do not list it as a dependency.

Does the server need Nemo's Vertical Slabs installed?

Yes. The server and every player need the mod installed.

Are vertical slabs added for other mods' blocks?

Only when those mods are installed. Biomes O' Plenty, Nemo's Mossy Blocks and Oh The Biomes We've Gone are optional, and the author plans support for more mods later.

In the catalog

Nemo's Vertical Slabs is one of 12,078 Decoration mods on ModsFinder, and one of 6,982 Decoration mods for Fabric. 8,071 mods support Minecraft 26.3.

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What the author says

Nemo’s Vertical Slabs adds vertical variants for every slab block in the game. If a block has a slab, it gets a vertical slab too. For detailed information, check out the wiki.
NemoNotFound, on the Modrinth page

Official listing

Owner
NemoNotFound
Published
2024-09-02
Updated on Modrinth
2026-09-24
Facts verified
2026-10-15

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