diff --git a/defaults/docs-defaults.yaml b/defaults/docs-defaults.yaml
index e2995b8f..5ca6f513 100644
--- a/defaults/docs-defaults.yaml
+++ b/defaults/docs-defaults.yaml
@@ -132,6 +132,7 @@ defaults:
   default_emissions_per_creative_request_gco2_per_imp: 0.000300000
   default_emissions_per_rtdp_request_gco2_per_imp: 0.010000000
   default_image_compression_ratio: 10
+  default_impressions_per_creative: 10000000
   default_iptv_network_distribution:
     fixed: 0.999000000
     mobile: 0.001000000
@@ -346,6 +347,16 @@ defaults:
     web: 0.049000000
   default_property_g_per_play_by_channel:
     linear-tv: 790
+  default_storage_kgco2e_per_gb:
+    cloud_storage: 0.025300000
+    hard_disk_drive: 0.160000000
+    linear_tape_open: 0.001140000
+    solid_state_drive: 0.020000000
+  default_storage_usage_pct:
+    cloud_storage: 45
+    hard_disk_drive: 25
+    linear_tape_open: 10
+    solid_state_drive: 20
   default_time_in_view_seconds: 6
   default_tv_home_equipment_embodied_gco2e_per_second_by_tv_distribution_method:
     cable: 0.005346759
diff --git a/docs/calculations.mdx b/docs/calculations.mdx
index 684e7b2d..d5c7a111 100644
--- a/docs/calculations.mdx
+++ b/docs/calculations.mdx
@@ -13,6 +13,7 @@ import AdPlatformDefaults from "/snippets/defaults_ad_platform.mdx";
 import NetworkTrafficDefaults from "/snippets/defaults_network_traffic.mdx";
 import ChannelMappingDefaults from "/snippets/defaults_channel_mapping.mdx";
 import BroadcastingDefaults from "/snippets/defaults_broadcasting.mdx";
+import CreativeStorageDefaults from "/snippets/defaults_creative_storage.mdx";
 
 # Detailed walkthrough of calculations
 
@@ -233,6 +234,10 @@ Observations from various channels
 
 <BroadcastingDefaults />
 
+### Creative storage defaults
+
+<CreativeStorageDefaults />
+
 ## Lookups from external sources
 
 ### Carbon intensity by country, region, and UTC Date/Time
diff --git a/docs/snippets/defaults_creative_storage.mdx b/docs/snippets/defaults_creative_storage.mdx
new file mode 100644
index 00000000..f7841953
--- /dev/null
+++ b/docs/snippets/defaults_creative_storage.mdx
@@ -0,0 +1,13 @@
+```
+default_impressions_per_creative: 10000000
+default_storage_kgco2e_per_gb:
+  cloud_storage: 0.0253
+  hard_disk_drive: 0.16
+  linear_tape_open: 0.00114
+  solid_state_drive: 0.02
+default_storage_usage_pct:
+  cloud_storage: 45
+  hard_disk_drive: 25
+  linear_tape_open: 10
+  solid_state_drive: 20
+```
diff --git a/scope3_methodology/test/test_api.py b/scope3_methodology/test/test_api.py
index 5e74d5dc..1d49ff1b 100644
--- a/scope3_methodology/test/test_api.py
+++ b/scope3_methodology/test/test_api.py
@@ -240,7 +240,7 @@ def test_startup(self):
         )
 
         docs_defs = docs_defaults
-        self.assertEqual(len(docs_defs), 46)
+        self.assertEqual(len(docs_defs), 49)
 
     def test_get_all_con_networking_connection_device_fixed_defaults(self):
         """Test get_all_networking_connection_device_defaults returns expected output"""