ModsJava
BetterSlabPlacement
Allows placing full blocks on top of bottom slabs, greatly improves building flexibility. Requires Fabric API.
⬇ Download on ModrinthBetter Slab Placement
This client-only fabric mod solves a common building limitation in vanilla Minecraft: you can now place full solid blocks directly on top of bottom slabs.
Key Features
- Only runs on client side, no mod installation required for multiplayer servers, fully compatible with vanilla servers
- No extra configuration needed, works immediately after loading the game
- Does not alter world data, block physics or other game mechanics, only adjusts block placement collision check
- Perfect for detailed architecture, interior decoration and complex terrain construction
Requirements
- Minecraft version: 1.21.1
- Loader: Fabric
- Mandatory dependency: Fabric API
Usage
Install the mod together with Fabric API, then you can place blocks above lower slabs normally while building.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.11
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as async-locator-1.0.0.jar — drop this file into the mods folder
- Download size: 15 KB
- Download link checked 7 Sept 2026 — working
These come from our own check of the pack file, not from the source page.