diff --git a/stairsplus/slopes.lua b/stairsplus/slopes.lua
index 8017bdf..4ba7a2d 100644
--- a/stairsplus/slopes.lua
+++ b/stairsplus/slopes.lua
@@ -419,6 +419,24 @@ function stairsplus:register_slope(modname, subname, recipeitem, fields)
 		recipe =  {modname .. ":slab_" .. subname, modname .. ":slope_" .. subname .. "_half"},
 	})
 	
+	minetest.register_craft({
+		type = "shapeless",
+		output = modname .. ":slope_" .. subname .. "_inner_half_raised",
+		recipe =  {modname .. ":slab_" .. subname, modname .. ":slope_" .. subname .. "_inner_half"},
+	})
+	
+	minetest.register_craft({
+		type = "shapeless",
+		output = modname .. ":slope_" .. subname .. "_outer_half_raised",
+		recipe =  {modname .. ":slab_" .. subname, modname .. ":slope_" .. subname .. "_outer_half"},
+	})
+	
+	minetest.register_craft({
+		type = "shapeless",
+		output = modname .. ":slope_" .. subname .. "_outer_cut_half_raised",
+		recipe =  {modname .. ":slab_" .. subname, modname .. ":slope_" .. subname .. "_outer_cut_half"},
+	})
+	
 	minetest.register_craft({
 		type = "shapeless",
 		output = modname .. ":slope_" .. subname .. "_outer_cut",