diff --git a/app/assets/images/communication/blocks/templates/posts/alternate.png b/app/assets/images/communication/blocks/templates/posts/alternate.png
new file mode 100644
index 0000000000000000000000000000000000000000..0e3517906860abe0f2bf69cde13750917ac839c9
Binary files /dev/null and b/app/assets/images/communication/blocks/templates/posts/alternate.png differ
diff --git a/app/models/communication/block/template/post.rb b/app/models/communication/block/template/post.rb
index eb7b6ec57c559f42777e19c5684585cd68fb2587..9105702bf99ea24869e3e7cba7f4aeb8b8e3b1a8 100644
--- a/app/models/communication/block/template/post.rb
+++ b/app/models/communication/block/template/post.rb
@@ -1,7 +1,7 @@
 class Communication::Block::Template::Post < Communication::Block::Template::Base
 
   has_elements
-  has_layouts [:grid, :list, :highlight]
+  has_layouts [:grid, :list, :highlight, :alternate]
   has_component :mode, :option, options: [:all, :category, :selection]
   has_component :posts_quantity, :number, options: 3
   has_component :category_id, :category
diff --git a/config/locales/communication/en.yml b/config/locales/communication/en.yml
index 609c93f67e84e8da98d5e20087a25fb09b7d648c..a824d21d319bd85dbdd393f266dac15cbde8b052 100644
--- a/config/locales/communication/en.yml
+++ b/config/locales/communication/en.yml
@@ -541,6 +541,9 @@ en:
               list:
                 label: List
                 description: A list of posts with small images the same width.
+              alternate:
+                label: Alternate
+                description: Posts either on the left or on the right, composing a graphically light page.
             edit:
               add_post: Add post
               mode:
diff --git a/config/locales/communication/fr.yml b/config/locales/communication/fr.yml
index bd8bb87a8481ec6b37a48da42e9c09b7496ca8e3..6339cabf5dd6657d8dd293cf094db9c3806d9797 100644
--- a/config/locales/communication/fr.yml
+++ b/config/locales/communication/fr.yml
@@ -541,6 +541,9 @@ fr:
               list:
                 label: Liste
                 description: Une liste d'articles avec de petites images à la même largeur.
+              alternate:
+                label: Alternance
+                description: Une alternance très légère graphiquement d'articles entre la gauche et la droite de la page.
             edit:
               add_post: Ajouter un article
               mode: