diff --git a/references.rst b/references.rst
index d987240..6770947 100644
--- a/references.rst
+++ b/references.rst
@@ -11,6 +11,11 @@
 .. _`Tendrl Package Installation Reference`:  https://github.com/Tendrl/documentation/wiki/Tendrl-release-v1.5.4-(install-guide)
 .. _`Design document for Context Selector navigation`: https://redhat.invisionapp.com/share/8QCOEVEY9#/screens/244820318
 .. _`Design document for Gluster file shares list`: https://redhat.invisionapp.com/share/BR8JDCGSQ#/screens/198417117
+.. _`Specification for cluster expansion`: https://github.com/Tendrl/specifications/pull/254
+
+.. Tendrl Upstream Issues
+
+.. _`upstream issue for cluster expansion`: https://github.com/Tendrl/commons/issues/805
 
 .. Tendrl Upstream Documentation related to Alerting
 
diff --git a/web/tendrl/cluster_expand.rst b/web/tendrl/cluster_expand.rst
new file mode 100644
index 0000000..40d5acf
--- /dev/null
+++ b/web/tendrl/cluster_expand.rst
@@ -0,0 +1,113 @@
+Expand cluster
+**************
+
+:authors: 
+  - fbalak@redhat.com
+  - mbukatov@redhat.com
+:requirements:
+  - :rhbz:`1516417`
+  - :rhbz:`1559368`
+
+Description
+===========
+
+Cluster expansion as described in `Specification for cluster expansion`_.
+
+See also `upstream issue for cluster expansion`_.
+
+Setup
+=====
+
+#. Prepare Gluster cluster.
+
+#. Login user into Tendrl, see :doc:`/web/tendrl/login_positive`
+
+#. Import cluster, see :doc:`/web/tendrl/cluster_import`
+
+#. Prepare another hosts with installed gluster that are going to be used for
+   expansion.
+
+Test Steps
+==========
+
+.. test_action::
+   :step:
+       From one of already imported hosts run:
+       ``gluster peer probe [new_host]``
+       where ``[new_host]`` is host that is going to be used to expand cluster.
+       Repeat for all new hosts.
+   :result:
+       All new hosts are added to gluster trusted pool.
+
+.. test_action::
+   :step:
+       In Tendrl UI click on imported cluster.
+   :result:
+       List of hosts is displayed and there are hosts from originally imported
+       cluster. There are no new hosts.
+
+.. test_action::
+   :step:
+       Run tendrl-ansible on new hosts from server that installed Tendrl on
+       all other hosts. Command ran from tendrl-ansible repo could look like
+       this:
+       ``ansible-playbook site.yml -u root -i expand.hosts``
+   :result:
+       *tendrl-node-agent* is installed on all new nodes.
+
+.. test_action::
+   :step:
+       Check list of hosts in Tendrl UI for given cluster.
+   :result:
+       There are listed all hosts of cluster. Original hosts are marked as *Up*
+       and new hosts are marked as *Unknown*. In above the cluster list at
+       right side is button *Expand Cluster*.
+
+.. test_action::
+   :step:
+       Click on *Expand Cluster* button.
+   :result:
+       Popup with list of hosts to expand is shown. There should not be hosts
+       that are already managed.
+
+.. test_action::
+   :step:
+       Click on *Expand* button in expand popup.
+   :result:
+       New Cluster expansion task is created.
+
+.. test_action::
+   :step:
+       Go to list of clusters in Tendrl UI.
+   :result:
+       Status of cluster that is being expanded is *In-progress* and there
+       should be link to expansion job.
+
+.. test_action::
+   :step:
+       Click on expansion job link and wait until the status of job is
+       *finished*.
+   :result:
+       Page with expansion job progress is displayed. After a while it should
+       finish correctly and status of job should change from *processing* to
+       *finished*.
+
+.. test_action::
+   :step:
+       Go to list of clusters in Tendrl UI.
+   :result:
+       Status of cluster that is *Healthy* and number of hosts is number of
+       all hosts in cluster.
+
+.. test_action::
+   :step:
+       Check list of hosts in Tendrl UI for given cluster.
+   :result:
+       There are listed all hosts of cluster and all are marked as *Up*.
+
+Teardown
+========
+
+#. Log out
+
+#. Close browser