Extra Slabs
by Pendonym
Extra Slabs gives blocks a slab variant, so builders can make half-height pieces that vanilla does not offer for many blocks.
What it does
Many blocks in the game have no slab form, and Extra Slabs fills that gap by adding one for each block it covers. Builders can use the slabs to smooth hills, cut paths into cleaner shapes and finish walls and stairs so they match the rest of a build. The server and every player need the mod installed. Forge is the only loader with files, released for 1.12 – 1.12.2 under the MIT License, and the code is not open source.
Key features
Slab variants for blocks
Blocks that have no slab in vanilla gain a half-height version, one slab per block.
Smoother terrain
Slabs let builders shape hills and paths with finer steps than full blocks allow.
Extra detail for builds
The slabs add detail to walls, stairs and trim that normal slabs could not reach before.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Half Slabs is open source under the MIT License, with Forge files for 1.19.2 and client and server environment, so it targets a later version. Puff-o-blocks is server-side only, with Forge files for 1.20.1, and players join it without installing anything. Dirt Update is also client and server, with Forge files for 1.20.1 and All rights reserved as its license.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Extra Slabs | Forge | 1.12 – 1.12.2 | Client and server | 2026-06-14 |
| Half Slabs | Forge | 1.19.2 | Client and server | 2023-10-29 |
| Puff-o-blocks | Forge | 1.20.1 | Server-side only | 2025-03-30 |
| Dirt Update | Forge | 1.20.1 | Client and server | 2024-12-15 |
Questions
Does Extra Slabs need to be installed on the server?
Which Minecraft versions does Extra Slabs support?
In the catalog
Extra Slabs is one of 7,555 Cursed mods on ModsFinder, and one of 3,426 Cursed mods for Forge. 2,920 mods support Minecraft 1.12.2.
More from Pendonym
Similar mods
What the author says
You might be asking: Why is this useful? and theres where i say "what if you need smoother terrain", "what if you need smooth builds", "what if you want half blocks of literally anything for detailing"
Official listing
- Modrinth page
- modrinth.com/mod/extra-slabs
- Owner
- Pendonym
- Published
- 2026-06-14
- Updated on Modrinth
- 2026-06-14
- Facts verified
- 2026-10-15