Nemo's Vertical Slabs

Add vertical slabs to Minecraft!

24.3K Downloads

fabricforgeneoforgedecoration

Rent Server with this Mod

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About this Mod

Description

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.

Supported Mods

Support for additional mods may be added in the future. Suggestions are welcome!

Join my Discord!

Join my Discord to meet new people and stay up to date with all of my mods!

Support Me

I love to create mods for Minecraft and wish to live off it one day, so I hope you like what I do.

Either way feel free to give me your feedback and suggestions, either on my Discord or the discussions :)

Get a Minecraft Server

Looking for a Minecraft Server? Check out !

Use my code Nemo404 to get a 25% discount on your first month with any of their gaming servers.

By using my code, you'll also be supporting my work as a Minecraft modder, helping me to pursue this passion full-time. Thank you!

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Available Versions

Nemo's Vertical Slabs Fabric 26.1.2-2.3.2release

MC 26.1.2fabric

June 2, 2026

Nemo's Vertical Slabs Fabric 26.1.2-2.3.1release

MC 26.1.2fabric

May 24, 2026

Nemo's Vertical Slabs Fabric 26.1.2-2.3release

MC 26.1.2fabric

May 24, 2026

Nemo's Vertical Slabs Fabric 1.21.11-2.3release

MC 1.21.11fabric

December 24, 2025

Nemo's Vertical Slabs Fabric 1.21.10-2.2release

MC 1.21.10fabric

October 11, 2025

How to Install Nemo's 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 (26.1.2).

Install Mod

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

Compatibility

Mod Loaders

fabricforgeneoforge

Minecraft Versions

26.1.2, 1.21.11, 1.21.10 (+8 more)

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Nemo's 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 (26.1.2). You can switch loaders with one click in the panel.

Is Nemo's Vertical Slabs compatible with fabric and forge and neoforge?

Nemo's Vertical Slabs officially supports fabric, forge, neoforge for Minecraft 26.1.2, 1.21.11, 1.21.10. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Nemo's Vertical Slabs – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Nemo's 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.