Vertical Slab Placement
Allows all vanilla slabs to be placed vertically.
Screenshots
About this Mod
THIS MOD IS FUNCTIONALLY REPLACED BY THE MUCH BETTER FULL SLABS
What does this mod do?
This mod adds the ability to place all vanilla slabs vertically as well as horizontally. You can place any slab vertically by targeting the edges of a block face, and you can target the center to place it flat against it.
What doesn't this mod do?
There are no extra items or blocks added, this is entirely a replacement for the vanilla slab mechanics. There is currently no compatibility with modded slabs, however you will still be able to place them without issues (just don't expect the models to look correct).
Known issues
- MoreCulling's BlockState culling will cause faces to be incorrectly culled.
Available Versions
How to Install Vertical Slab Placement on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21).
Install Mod
Open the mod browser in the dashboard and search for "Vertical Slab Placement". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21, 1.20.6
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Vertical Slab Placement server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21). You can switch loaders with one click in the panel.
Is Vertical Slab Placement compatible with fabric?
Vertical Slab Placement officially supports fabric for Minecraft 1.21, 1.20.6. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Vertical Slab Placement – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Vertical Slab Placement consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install Vertical Slab Placement with just one click on your server.