diff --git a/overviewer_core/src/block_class.c b/overviewer_core/src/block_class.c
index 5fc8b3a..c43cc1c 100644
--- a/overviewer_core/src/block_class.c
+++ b/overviewer_core/src/block_class.c
@@ -116,7 +116,15 @@ const mc_block_t block_class_stair[] = {
     block_smooth_sandstone_stairs,
     block_blackstone_stairs,
     block_polished_blackstone_stairs,
-    block_polished_blackstone_brick_stairs};
+    block_polished_blackstone_brick_stairs,
+    block_cut_copper_stairs,
+    block_exposed_cut_copper_stairs,
+    block_weathered_cut_copper_stairs,
+    block_oxidized_cut_copper_stairs,
+    block_waxed_cut_copper_stairs,
+    block_waxed_exposed_cut_copper_stairs,
+    block_waxed_weathered_cut_copper_stairs,
+    block_waxed_oxidized_cut_copper_stairs};
 const size_t block_class_stair_len = COUNT_OF(block_class_stair);
 
 const mc_block_t block_class_door[] = {
@@ -199,6 +207,14 @@ const mc_block_t block_class_ancil[] = {
     block_blackstone_stairs,
     block_polished_blackstone_stairs,
     block_polished_blackstone_brick_stairs,    
+    block_cut_copper_stairs,
+    block_exposed_cut_copper_stairs,
+    block_weathered_cut_copper_stairs,
+    block_oxidized_cut_copper_stairs,
+    block_waxed_cut_copper_stairs,
+    block_waxed_exposed_cut_copper_stairs,
+    block_waxed_weathered_cut_copper_stairs,
+    block_waxed_oxidized_cut_copper_stairs,
     block_grass,
     block_flowing_water,
     block_water,
diff --git a/overviewer_core/src/mc_id.h b/overviewer_core/src/mc_id.h
index f72c352..e8c0489 100644
--- a/overviewer_core/src/mc_id.h
+++ b/overviewer_core/src/mc_id.h
@@ -338,6 +338,16 @@ enum mc_block_id {
     block_raw_copper = 1062,
     block_copper_ore = 1063,
 
+    block_cut_copper_stairs = 1064,
+    block_exposed_cut_copper_stairs = 1065,
+    block_weathered_cut_copper_stairs = 1066,
+    block_oxidized_cut_copper_stairs = 1067,
+
+    block_waxed_cut_copper_stairs = 1068,
+    block_waxed_exposed_cut_copper_stairs = 1069,
+    block_waxed_weathered_cut_copper_stairs = 1070,
+    block_waxed_oxidized_cut_copper_stairs = 1071,
+
     // adding a gap in the numbering of walls to keep them all
     // in one numbering block starting at 1792
     // all blocks between 1792 and 2047 are considered walls
diff --git a/overviewer_core/src/overviewer.h b/overviewer_core/src/overviewer.h
index 511cf0e..a5a1658 100644
--- a/overviewer_core/src/overviewer.h
+++ b/overviewer_core/src/overviewer.h
@@ -31,7 +31,7 @@
 
 // increment this value if you've made a change to the c extension
 // and want to force users to rebuild
-#define OVERVIEWER_EXTENSION_VERSION 102
+#define OVERVIEWER_EXTENSION_VERSION 103
 
 #include <stdbool.h>
 #include <stdint.h>
diff --git a/overviewer_core/textures.py b/overviewer_core/textures.py
index 83897d3..a686b3f 100644
--- a/overviewer_core/textures.py
+++ b/overviewer_core/textures.py
@@ -2029,9 +2029,11 @@ block(blockid=52, top_image="assets/minecraft/textures/block/spawner.png", trans
 # mossy brick and mossy cobblestone, stone smooth_quartz
 # polished_granite polished_andesite polished_diorite granite diorite andesite end_stone_bricks red_nether_brick stairs
 # smooth_red_sandstone blackstone polished_blackstone polished_blackstone_brick
-@material(blockid=[53, 67, 108, 109, 114, 128, 134, 135, 136, 156, 163, 164, 180, 203, 509, 510, 11337, 11338, 11339,
-          11370, 11371, 11374, 11375, 11376, 11377, 11378, 11379, 11380, 11381, 11382, 11383, 11384, 11415,
-          1030, 1031, 1032],
+# also all the copper variants
+@material(blockid=[53, 67, 108, 109, 114, 128, 134, 135, 136, 156, 163, 164, 180, 203, 509, 510,
+                   11337, 11338, 11339, 11370, 11371, 11374, 11375, 11376, 11377, 11378, 11379,
+                   11380, 11381, 11382, 11383, 11384, 11415, 1030, 1031, 1032, 1064, 1065, 1066,
+                   1067, 1068, 1069, 1070, 1071],
           data=list(range(128)), transparent=True, solid=True, nospawn=True)
 def stairs(self, blockid, data):
     # preserve the upside-down bit
@@ -2082,6 +2084,17 @@ def stairs(self, blockid, data):
         1030: "assets/minecraft/textures/block/blackstone.png",
         1031: "assets/minecraft/textures/block/polished_blackstone.png",
         1032: "assets/minecraft/textures/block/polished_blackstone_bricks.png",
+        # Cut copper stairs
+        1064: "assets/minecraft/textures/block/cut_copper.png",
+        1065: "assets/minecraft/textures/block/exposed_cut_copper.png",
+        1066: "assets/minecraft/textures/block/weathered_cut_copper.png",
+        1067: "assets/minecraft/textures/block/oxidized_cut_copper.png",
+        # Waxed cut copper stairs
+        1068: "assets/minecraft/textures/block/cut_copper.png",
+        1069: "assets/minecraft/textures/block/exposed_cut_copper.png",
+        1070: "assets/minecraft/textures/block/weathered_cut_copper.png",
+        1071: "assets/minecraft/textures/block/oxidized_cut_copper.png",
+
     }
 
     texture = self.load_image_texture(stair_id_to_tex[blockid]).copy()
diff --git a/overviewer_core/world.py b/overviewer_core/world.py
index c10bb8a..9687a9d 100644
--- a/overviewer_core/world.py
+++ b/overviewer_core/world.py
@@ -794,6 +794,14 @@ class RegionSet(object):
             'minecraft:waxed_oxidized_cut_copper':   (1061, 0),
             'minecraft:raw_copper_block': (1062, 0),
             'minecraft:copper_ore': (1063, 0),
+            'minecraft:cut_copper_stairs': (1064, 0),
+            'minecraft:exposed_cut_copper_stairs': (1065, 0),
+            'minecraft:weathered_cut_copper_stairs': (1066, 0),
+            'minecraft:oxidized_cut_copper_stairs': (1067, 0),
+            'minecraft:waxed_cut_copper_stairs': (1068, 0),
+            'minecraft:waxed_exposed_cut_copper_stairs': (1069, 0),
+            'minecraft:waxed_weathered_cut_copper_stairs': (1070, 0),
+            'minecraft:waxed_oxidized_cut_copper_stairs': (1071, 0),
 
             # New blocks
             'minecraft:carved_pumpkin': (11300, 0),