diff --git a/mods/ITEMS/mclx_stairs/init.lua b/mods/ITEMS/mclx_stairs/init.lua
index 703c4d284..58d679ee0 100644
--- a/mods/ITEMS/mclx_stairs/init.lua
+++ b/mods/ITEMS/mclx_stairs/init.lua
@@ -10,6 +10,19 @@ mcstair.add("mcl_stairs:stair_prismarine_dark")
 mcl_stairs.register_stair_and_slab_simple("mossycobble", "mcl_core:mossycobble", "Moss Stone Stairs", "Moss Stone Slab", "Double Moss Stone Slab")
 mcstair.add("mcl_stairs:stair_mossycobble")
 
+mcl_stairs.register_stair_and_slab_simple("tree_bark", "mcl_core:tree_bark", "Oak Bark Stairs", "Oak Bark Slab", "Double Oak Bark Slab")
+mcstair.add("mcl_stairs:stair_tree_bark")
+mcl_stairs.register_stair_and_slab_simple("acaciatree_bark", "mcl_core:acaciatree_bark", "Acacia Bark Stairs", "Acacia Bark Slab", "Double Acacia Bark Slab")
+mcstair.add("mcl_stairs:stair_acaciatree_bark")
+mcl_stairs.register_stair_and_slab_simple("sprucetree_bark", "mcl_core:sprucetree_bark", "Spruce Bark Stairs", "Spruce Bark Slab", "Double Spruce Bark Slab")
+mcstair.add("mcl_stairs:stair_sprucetree_bark")
+mcl_stairs.register_stair_and_slab_simple("birchtree_bark", "mcl_core:birchtree_bark", "Birch Bark Stairs", "Birch Bark Slab", "Double Birch Bark Slab")
+mcstair.add("mcl_stairs:stair_birchtree_bark")
+mcl_stairs.register_stair_and_slab_simple("jungletree_bark", "mcl_core:jungletree_bark", "Jungle Bark Stairs", "Jungle Bark Slab", "Double Jungle Bark Slab")
+mcstair.add("mcl_stairs:stair_jungletree_bark")
+mcl_stairs.register_stair_and_slab_simple("darktree_bark", "mcl_core:darktree_bark", "Dark Oak Bark Stairs", "Dark Oak Bark Slab", "Double Dark Oak Bark Slab")
+mcstair.add("mcl_stairs:stair_darktree_bark")
+
 mcl_stairs.register_slab("lapisblock", "mcl_core:lapisblock", {}, {"mcl_core_lapis_block.png", "mcl_core_lapis_block.png", "mcl_stairs_lapis_block_slab.png"}, "Lapis Lazuli Slab", nil, nil, "Double Lapis Lazuli Slab")
 mcl_stairs.register_stair("lapisblock", "mcl_core:lapisblock", {}, {"mcl_stairs_lapis_block_slab.png", "mcl_core_lapis_block.png", "mcl_core_lapis_block.png", "mcl_core_lapis_block.png", "mcl_core_lapis_block.png", "mcl_stairs_lapis_block_slab.png"}, "Lapis Lazuli Stair")
 mcstair.add("mcl_stairs:stair_lapisblock")