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Better SlabMinecraft mod for 1.21.1

A Minecraft mod that adds vertical slabs, allows mixing different slab types in one block, enables mining upper/lower halves independently, and supports placing full blocks perfectly on top.

client and servernewest supported 1.21.1UtilityDecoration
Latest version
0.2.0
Minecraft
1.18.2 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Forge, Fabric
Licence
LGPL-3.0-only
Downloads
73
Updated
19 d ago
Available on
Modrinth
Space NodePartner

Host Better Slab servers

One click and Better Slab is installed with the right loader, on hardware built for it.

  • 1.21.1
  • NeoForge
  • Forge
  • Fabric
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Better Slab declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge, Fabric21+declared8 Aug 2024
1.20.6Fabric, NeoForge, Forge21+declared29 Apr 2024
1.20.1Fabric, Forge, NeoForge17+declared12 Jun 2023
1.19.4Fabric, NeoForge, Forge17+declared14 Mar 2023
1.19.2NeoForge, Forge, Fabric17+declared5 Aug 2022
1.18.2NeoForge, Fabric, Forge17+declared28 Feb 2022

Download

From Better Slab’s own host. Nothing is re-hosted here.

0.2.0beta14 Jul 2026

betterslab-0.2.0+1.21.1.jar · 0.2 MB · for 1.21.1

Download latest
bb5ae88c7fff…
Older versions12
  • 0.1.0-forge-1.21.112 Jul 20261.21.10.2 MB26 downloads9670d8b31248…Get
  • 0.1.0-forge-1.20.612 Jul 20261.20.60.2 MB1 downloadsf961be8382dd…Get
  • 0.1.0-forge-1.20.112 Jul 20261.20.10.2 MB29 downloads4baabf1f7393…Get
  • 0.1.0-forge-1.19.412 Jul 20261.19.40.2 MB2 downloads10e1c48210eb…Get
  • 0.1.0-forge-1.19.212 Jul 20261.19.20.2 MB4 downloadsc1c3951e4880…Get
  • 0.1.0-forge-1.18.212 Jul 20261.18.20.2 MB3 downloads94a06a6a5e5d…Get
  • 0.1.0-fabric-1.20.612 Jul 20261.20.60.2 MB680149dc324a…Get
  • 0.1.0-fabric-1.20.112 Jul 20261.20.10.2 MB33 downloads3eab7f3d9a71…Get
  • 0.1.0-fabric-1.19.412 Jul 20261.19.40.2 MB1 downloadscea8bf5fe70e…Get
  • 0.1.0-fabric-1.19.212 Jul 20261.19.20.2 MB4 downloadsdd7f5192c462…Get
  • 0.1.0-fabric-1.18.212 Jul 20261.18.20.2 MB5 downloadsfb773c59edfc…Get
  • 0.1.012 Jul 20261.21.10.2 MB2 downloads1977140b771b…Get

Frequently asked

Does Better Slab work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Better Slab declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Better Slab support?

Everything the author has declared, from 1.18.2 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Better Slab on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which loader does Better Slab need?

NeoForge, Forge, Fabric. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Better Slab?

Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the mod itself.

What licence is Better Slab under?

LGPL-3.0-only, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Better Slab?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Better Slab safely?

From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

Entity CullingUsing async path-tracing to hide Block-/Entities that are not visibleFerriteCoreMemory usage optimizationsImmediatelyFastSpeed up immediate mode rendering in MinecraftYetAnotherConfigLib (YACL)A builder-based configuration library for Minecraft!Xaero's MinimapDisplays a map of the nearby world terrain, players, mobs, entities in the corner of your screen. Lets you create waypoints which help you find the locations you've marked.[ETF] Entity Texture FeaturesEmissive, Random & Custom texture support for entities in resourcepacks just like Optifine but for Fabric

Last checked 6 d ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .