Currently there are stairs, slabs, walls, fences and gates for 60 blocks and a Smooth Stone block (the default stone slab).

Stairs, Slabs, Walls, Fences and Gates:

• Bone
• Clay
• Coal
• Diamond
• Emerald
• End Brick
• End Stone
• Gold
• Hardened Clay
• All 16 Stained Clay
• Iron
• Lapis
• Acacia Log
• Dark Oak Log
• Birch Log
• Jungle Log
• Oak Log
• Spruce Log
• Netherrack
• Nether Wart
• Obsidian
• Prismarine Brick
• Dark Prismarine
• Prismarine
• Purpur Pillar
• Chiseled Quartz
• Quartz Pillar
• Red Nether Brick
• Chiseled Red Sandstone
• Smooth Red Sandstone
• Chiseled Sandstone
• Smooth Sandstone
• Chiseled Stone Brick
• Cracked Stone Brick
• Mossy Stone Brick
• Andesite
• Polished Andesite
• Diorite
• Polished Diorite
• Granite
• Polished Granite
• Hay
• Ice
• Packed Ice
• Stone (Regular stone texture)
• Mossy Cobblestone (Stairs, Slab, Fence and Gate)
• Brick (Wall, Fence and Gate)
• Nether Brick (Wall and Gate)
• Purpur (Wall, Fence and Gate)
• Glass (Stairs and Slab)
• Stained Glass (Stairs and Slab)
• Stone Brick (Wall, Fence and Gate)
• Cobblestone (Fence and Gate)
• Sandstone (Wall, Fence and Gate)
• Red Sandstone (Wall, Fence and Gate)
• Quartz (Wall, Fence and Gate)
• Dirt (Stairs and Slab)
• Coarse Dirt (Stairs and Slab)
• Grass (Stairs and Slab)
• Path (Stairs and Slab)
• Podzol (Stairs and Slab)
• Mycelium (Stairs and Slab)
• Leaves (Stairs, Slabs, Fences, and Walls)
• Concrete
• Concrete Powder

Polished Stone:

• Polished Stone Block (Full block with Vanilla stone slab texture)
• Polished Stone Stairs, Wall, Fence and Gate

Mushrooms:

• Mushroom Stem Block (Full block)
• Mushroom Insides Block (Full block)
• Red Mushroom (Stairs, Slab, Wall, Fence and Gate)
• Brown Mushroom (Stairs, Slab, Wall, Fence and Gate)
• Mushroom Stem (Stairs, Slab, Wall, Fence and Gate)
• Mushroom Insides (Stairs, Slab, Wall, Fence and Gate)

Crafting

Override Vanilla: - Overrides the Vanilla Minecraft recipe for Stone Slabs and Nether Brick Fences.

Grass Crafting: - Allows crafting Grass Blocks from Tall Grass and Dirt Blocks.

Special Grass Crafting: - Allows crafting Grass Stairs or Slabs from Tall Grass and Dirt Stairs or Slabs.

Mushroom Crafting: - Allows crafting Red or Brown Mushroom Blocks from Red or Brown Mushrooms.

Special Mushroom Crafting: - Allows crafting of Mushroom Stem or Insides Blocks from Red or Brown Blocks.

Concrete Crafting:  - Allows crafting of Concrete blocks from Concrete Powder and a Water Bucket.

General

Include Stairs: - Enable/Disable all Stairs

Include Slabs: - Enable/Disable all Slabs

Include Fences: - Enable/Disable all Fences

Include Walls: - Enable/Disable all Walls

Include Gates: - Enable/Disable all Gates

Official Release

Version 1.0.9:

- Bug Fixes

   - Fix for issue #8, crash when disabling ground stairs or slabs

   - Fix for issue #9, error in recipe for stone brick gate variants

   - Fix for issue #10, error in path stairs model

- Ice added

Version 1.0.8:

- Bug Fixes

   - Fix for issue #5, crash related to leaf stairs and fast leaf decay mod

Version 1.0.7:

- Updated to Minecraft 1.12.2

- Updated Forge versions for both 1.12.2 and 1.11.2

- Bug Fixes

   - Fixed crafting recipes for Stone Brick, Sandstone, Red Sandstone, and Quartz issues

Version 1.0.6:

- Bug Fixes

   - Fix crash on loading for servers

Version 1.0.5:

- Concrete and Concrete Powder added

   - Optional recipe to craft Concrete from Concrete Powder and a Water Bucket

- Bug Fixes

   - Fix crash on loading when Quark is present

   - Updated blocks to remove if Quark is found

   - Fix recipe conflicts

Version 1.0.4:

- Bug Fixes

    - Another adjustment to fix the crash caused by color manager

    - Bone stairs and walls textures adjusted

    - Custom creative tabs for each block type added per request

    - Names updated from Stained Clay to Hardened Clay

    - Recipe added to convert grass blocks to path blocks, if grass crafting is enabled

Version 1.0.2:

- Bug Fixes

    - Issue 1:  Crash caused by color manager

    - Issue 2:  Crash at loading

    - Dirt and Grass crafting issue fixed

    - Granite and Mossy Stone wall crafting fixed

Version 1.0:

- Updated configs with new options

    - disable block type groups, with some individual selections

- Added compatibility with Quark.  If detected blocks that are duplicated in both mods will not be loaded.

    - config option to ignore Quark and add the blocks anyway.  ( If you have them disabled from Quark instead)

- Added Leaves Stairs, Slab, Fence, and Wall

Beta

Version b0.8.2:

- Updated configs with new options

    - crafting selections

    - disable block types

- Added Stone Brick Wall, Fence, and Gate

- Added Cobblestone Fence, and Gate

- Added Sandstone Wall, Fence, and Gate

- Added Red Sandstone Wall, Fence, and Gate

- Added Quartz Wall, Fence, and Gate

- Added Dirt Stairs and Slab

- Added Coarse Dirt Stairs and Slab

- Added Grass Stairs and Slab

- Added Path Stairs and Slab

- Added Podzol Stairs and Slab

- Added Mycelium Stairs and Slab

- Added Red Mushroom Stairs, Slab, Wall, Fence and Gate

- Added Brown Mushroom Stairs, Slab, Wall, Fence and Gate

- Added Mushroom Insides Stairs, Slab, Wall, Fence and Gate

- Added Mushroom Stem Stairs, Slab, Wall, Fence and Gate

- Texture fixed on log walls

- Bug fix: Place torch on new walls

- Bug fix: corrected block placing sounds

- Bug fix: corrected glass lighting issue

Version b0.7.0:

- Added Purpur Wall, Fence, and Gate

- Added Glass Stairs and Slab

- Added Stained Glass Stairs and Slab

- Minor text fixes

Version b0.6.6:

- Fix for multiplayer bug

Version b0.6.5:

- Added Fence Gates

- Added Walls

- Added Smooth Stone (based on Vanilla Stone Slab)

- Added Stone, Nether Brick, Brick, and Packed Ice

- Fixed a few minor texture bugs

Alpha

Version a0.5.2:

- corrected an inventory texturing issue

Version a0.5.1:

- created stairs, slabs and fences for several vanilla blocks like Cracked Stone Bricks, Stained Clay, Nether Wart Blocks and more