diff --git a/mods/default/models/glass.obj b/mods/default/models/glass.obj
index 497822ea..a8624d5e 100644
--- a/mods/default/models/glass.obj
+++ b/mods/default/models/glass.obj
@@ -1,15 +1,15 @@
 # Blender v2.79 (sub 0) OBJ File: ''
 # www.blender.org
 mtllib glass.mtl
-o Cube
-v -0.499000 -0.499000 0.499000
-v -0.499000 0.499000 0.499000
-v -0.499000 0.499000 -0.499000
-v -0.499000 -0.499000 -0.499000
-v 0.499000 0.499000 -0.499000
-v 0.499000 -0.499000 -0.499000
-v 0.499000 0.499000 0.499000
-v 0.499000 -0.499000 0.499000
+o Cube.002
+v -0.504000 -0.504000 0.504000
+v -0.504000 0.504000 0.504000
+v -0.504000 0.504000 -0.504000
+v -0.504000 -0.504000 -0.504000
+v 0.504000 0.504000 -0.504000
+v 0.504000 -0.504000 -0.504000
+v 0.504000 0.504000 0.504000
+v 0.504000 -0.504000 0.504000
 vt 0.000000 0.000000
 vt 1.000000 0.000000
 vt 1.000000 1.000000
@@ -32,12 +32,12 @@ vt 0.000000 0.000000
 vt 0.000000 1.000000
 vn -1.0000 0.0000 0.0000
 vn 0.0000 0.0000 -1.0000
-vn 1.0000 -0.0000 0.0000
-vn 0.0000 -0.0000 1.0000
-vn 0.0000 -1.0000 -0.0000
+vn 1.0000 0.0000 0.0000
+vn 0.0000 0.0000 1.0000
+vn 0.0000 -1.0000 0.0000
 vn 0.0000 1.0000 0.0000
-usemtl Material.002
-s off
+usemtl Material.001
+s 1
 f 1/1/1 2/2/1 3/3/1 4/4/1
 f 4/5/2 3/6/2 5/7/2 6/8/2
 f 6/9/3 5/10/3 7/11/3 8/12/3
diff --git a/mods/stairs/init.lua b/mods/stairs/init.lua
index e2984f66..b2bd4925 100644
--- a/mods/stairs/init.lua
+++ b/mods/stairs/init.lua
@@ -159,7 +159,7 @@ end
 -- Node will be called stairs:slab_<subname>
 
 function stairs.register_slab(subname, recipeitem, groups, images, description,
-		sounds, worldaligntex)
+		sounds, worldaligntex, drawtype)
 	-- Set world-aligned textures
 	local slab_images = {}
 	for i, image in ipairs(images) do
@@ -182,7 +182,8 @@ function stairs.register_slab(subname, recipeitem, groups, images, description,
 	warn_if_exists("stairs:slab_" .. subname)
 	minetest.register_node(":stairs:slab_" .. subname, {
 		description = description,
-		drawtype = "nodebox",
+		drawtype = drawtype or "nodebox",
+		mesh = "glass_slab.obj",
 		tiles = slab_images,
 		paramtype = "light",
 		paramtype2 = "facedir",
@@ -193,6 +194,10 @@ function stairs.register_slab(subname, recipeitem, groups, images, description,
 			type = "fixed",
 			fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5},
 		},
+		selection_box = {
+			type = "fixed",
+			fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5},
+		},
 		on_place = function(itemstack, placer, pointed_thing)
 			local under = minetest.get_node(pointed_thing.under)
 			local wield_item = itemstack:get_name()
@@ -887,10 +892,11 @@ stairs.register_slab(
 	"glass",
 	"default:glass",
 	{cracky = 3},
-	{"default_glass.png", "default_glass.png", "stairs_glass_split.png"},
+	{"stairs_glass.png"},
 	S("Glass Slab"),
 	default.node_sound_glass_defaults(),
-	false
+	false,
+	"mesh"
 )
 
 stairs.register_stair_inner(
@@ -935,10 +941,11 @@ stairs.register_slab(
 	"obsidian_glass",
 	"default:obsidian_glass",
 	{cracky = 3},
-	{"default_obsidian_glass.png", "default_obsidian_glass.png", "stairs_obsidian_glass_split.png"},
+	{"stairs_obsidian_glass.png"},
 	S("Obsidian Glass Slab"),
 	default.node_sound_glass_defaults(),
-	false
+	false,
+	"mesh"
 )
 
 stairs.register_stair_inner(
diff --git a/mods/stairs/models/glass_slab.obj b/mods/stairs/models/glass_slab.obj
new file mode 100644
index 00000000..2a3f8f62
--- /dev/null
+++ b/mods/stairs/models/glass_slab.obj
@@ -0,0 +1,49 @@
+# Blender v2.79 (sub 0) OBJ File: ''
+# www.blender.org
+mtllib glass_slab.mtl
+o Cube.001
+v -0.504000 -0.504000 0.504000
+v -0.504000 0.004000 0.504000
+v -0.504000 0.004000 -0.504000
+v -0.504000 -0.504000 -0.504000
+v 0.499500 0.004000 -0.504000
+v 0.499500 -0.504000 -0.504000
+v 0.499500 0.004000 0.504000
+v 0.499500 -0.504000 0.504000
+vt 1.000000 0.500000
+vt 1.000000 1.000000
+vt 0.500000 1.000000
+vt 0.500000 0.500000
+vt 1.000000 0.500000
+vt 1.000000 1.000000
+vt 0.500000 1.000000
+vt 0.500000 0.500000
+vt 1.000000 0.500000
+vt 1.000000 1.000000
+vt 0.500000 1.000000
+vt 0.500000 0.500000
+vt 1.000000 0.500000
+vt 1.000000 1.000000
+vt 0.500000 1.000000
+vt 0.500000 0.500000
+vt 0.000000 0.000000
+vt 0.500000 0.000000
+vt 0.500000 1.000000
+vt 0.000000 1.000000
+vt 0.000000 0.000000
+vt 0.500000 0.000000
+vt 0.000000 1.000000
+vn -1.0000 0.0000 0.0000
+vn 0.0000 0.0000 -1.0000
+vn 1.0000 0.0000 0.0000
+vn 0.0000 0.0000 1.0000
+vn 0.0000 -1.0000 0.0000
+vn 0.0000 1.0000 0.0000
+usemtl Material.002
+s 1
+f 1/1/1 2/2/1 3/3/1 4/4/1
+f 4/5/2 3/6/2 5/7/2 6/8/2
+f 6/9/3 5/10/3 7/11/3 8/12/3
+f 8/13/4 7/14/4 2/15/4 1/16/4
+f 4/17/5 6/18/5 8/19/5 1/20/5
+f 5/21/6 3/22/6 2/15/6 7/23/6
diff --git a/mods/stairs/textures/stairs_glass.png b/mods/stairs/textures/stairs_glass.png
new file mode 100644
index 00000000..c005e194
Binary files /dev/null and b/mods/stairs/textures/stairs_glass.png differ
diff --git a/mods/stairs/textures/stairs_obsidian_glass.png b/mods/stairs/textures/stairs_obsidian_glass.png
new file mode 100644
index 00000000..68f03ee2
Binary files /dev/null and b/mods/stairs/textures/stairs_obsidian_glass.png differ