Vertical slabs

Adds a vertical slab varient for every block that has a slab block

2.1K Downloads

fabricdecorationutility

Rent Server with this Mod

About this Mod

Adds a vertical slab varient for every block that has a slab block!

You can craft the vertical slabs by putting 3 blocks as a colum over one another resulting in 6 Slabs.

You can craft the vertical slabs back to a full block by putting two next to each other.

Available Versions

Vertical slabs 1.1.0release

MC 1.21, 1.21.1fabric

July 7, 2025

Vertical slabs 1.0.0release

MC 1.21, 1.21.1fabric

June 16, 2025

How to Install Vertical slabs 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 (1.21.1).

Install Mod

Open the mod browser in the dashboard and search for "Vertical slabs". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.1, 1.21

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Vertical slabs 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 (1.21.1). You can switch loaders with one click in the panel.

Is Vertical slabs compatible with fabric?

Vertical slabs officially supports fabric for Minecraft 1.21.1, 1.21. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Vertical slabs – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Vertical slabs 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.