diff --git a/tempest/api/orchestration/stacks/templates/cinder_basic.yaml b/tempest/api/orchestration/stacks/templates/cinder_basic.yaml
index ffff580..61c271c 100644
--- a/tempest/api/orchestration/stacks/templates/cinder_basic.yaml
+++ b/tempest/api/orchestration/stacks/templates/cinder_basic.yaml
@@ -1,10 +1,15 @@
 heat_template_version: 2013-05-23
 
+parameters:
+  volume_size:
+    type: number
+    default: 1
+
 resources:
     volume:
         type: OS::Cinder::Volume
         properties:
-            size: 1
+            size: { get_param: volume_size }
             description: a descriptive description
             name: volume_name
 
diff --git a/tempest/api/orchestration/stacks/templates/cinder_basic_delete_retain.yaml b/tempest/api/orchestration/stacks/templates/cinder_basic_delete_retain.yaml
index b660c19..0bc6d69 100644
--- a/tempest/api/orchestration/stacks/templates/cinder_basic_delete_retain.yaml
+++ b/tempest/api/orchestration/stacks/templates/cinder_basic_delete_retain.yaml
@@ -1,11 +1,16 @@
 heat_template_version: 2013-05-23
 
+parameters:
+  volume_size:
+    type: number
+    default: 1
+
 resources:
     volume:
         deletion_policy: 'Retain'
         type: OS::Cinder::Volume
         properties:
-            size: 1
+            size: { get_param: volume_size }
             description: a descriptive description
             name: volume_name
 
diff --git a/tempest/api/orchestration/stacks/test_volumes.py b/tempest/api/orchestration/stacks/test_volumes.py
index 37e68ef..a5aaf6e 100644
--- a/tempest/api/orchestration/stacks/test_volumes.py
+++ b/tempest/api/orchestration/stacks/test_volumes.py
@@ -32,8 +32,7 @@
         self.assertIsNotNone(volume_id)
         volume = self.volumes_client.show_volume(volume_id)['volume']
         self.assertEqual('available', volume.get('status'))
-        self.assertEqual(template['resources']['volume']['properties'][
-            'size'], volume.get('size'))
+        self.assertEqual(CONF.volume.volume_size, volume.get('size'))
 
         # Some volume properties have been renamed with Cinder v2
         if CONF.volume_feature_enabled.api_v2:
@@ -51,8 +50,8 @@
     def _outputs_verify(self, stack_identifier, template):
         self.assertEqual('available',
                          self.get_stack_output(stack_identifier, 'status'))
-        self.assertEqual(str(template['resources']['volume']['properties'][
-            'size']), self.get_stack_output(stack_identifier, 'size'))
+        self.assertEqual(str(CONF.volume.volume_size),
+                         self.get_stack_output(stack_identifier, 'size'))
         self.assertEqual(template['resources']['volume']['properties'][
             'description'], self.get_stack_output(stack_identifier,
                                                   'display_description'))
@@ -65,7 +64,12 @@
         """Create and delete a volume via OS::Cinder::Volume."""
         stack_name = data_utils.rand_name('heat')
         template = self.read_template('cinder_basic')
-        stack_identifier = self.create_stack(stack_name, template)
+        stack_identifier = self.create_stack(
+            stack_name,
+            template,
+            parameters={
+                'volume_size': CONF.volume.volume_size
+            })
         self.client.wait_for_stack_status(stack_identifier, 'CREATE_COMPLETE')
 
         # Verify with cinder that the volume exists, with matching details
@@ -94,7 +98,12 @@
         """Ensure the 'Retain' deletion policy is respected."""
         stack_name = data_utils.rand_name('heat')
         template = self.read_template('cinder_basic_delete_retain')
-        stack_identifier = self.create_stack(stack_name, template)
+        stack_identifier = self.create_stack(
+            stack_name,
+            template,
+            parameters={
+                'volume_size': CONF.volume.volume_size
+            })
         self.client.wait_for_stack_status(stack_identifier, 'CREATE_COMPLETE')
 
         # Verify with cinder that the volume exists, with matching details