diff --git a/src/patterns/03-layouts/layout/_layout.twig b/src/patterns/03-layouts/layout/_layout.twig
index 507d89cfb289ae424249430a98a22e4a222b95ee..f277bbfabf2861cabf9711a1c0be9fd2757d8efc 100644
--- a/src/patterns/03-layouts/layout/_layout.twig
+++ b/src/patterns/03-layouts/layout/_layout.twig
@@ -24,6 +24,9 @@
   {% if pattern_lab %}
     class="{{ classes }}"
   {% else %}
+    {% if not attributes.hasClass('uw-full-width') %}
+      {% set classes = classes|merge(['uw-contained-width']) %}
+    {% endif %}
     {{ attributes.addClass(classes) }}
   {% endif %}
 >