diff --git a/manifests/type/sub-cluster/README.md b/manifests/type/sub-cluster/README.md
new file mode 100644
index 000000000..426cb46a6
--- /dev/null
+++ b/manifests/type/sub-cluster/README.md
@@ -0,0 +1,4 @@
+# Sub-cluster Type
+
+The sub-cluster type is an abstract type not intended for site inheritance.
+Instead, it serves as a template for other types to define sub-clusters.
diff --git a/manifests/type/sub-cluster/initinfra-networking/kustomization.yaml b/manifests/type/sub-cluster/initinfra-networking/kustomization.yaml
new file mode 100644
index 000000000..f3e50a853
--- /dev/null
+++ b/manifests/type/sub-cluster/initinfra-networking/kustomization.yaml
@@ -0,0 +1,2 @@
+resources:
+  - ../../../../../airshipctl/manifests/composite/infra
diff --git a/manifests/type/sub-cluster/initinfra/kustomization.yaml b/manifests/type/sub-cluster/initinfra/kustomization.yaml
new file mode 100644
index 000000000..c36d675f3
--- /dev/null
+++ b/manifests/type/sub-cluster/initinfra/kustomization.yaml
@@ -0,0 +1,2 @@
+resources:
+  - ../../../../../airshipctl/manifests/composite/flux-helm/
diff --git a/manifests/type/sub-cluster/initinfra/replacements/kustomization.yaml b/manifests/type/sub-cluster/initinfra/replacements/kustomization.yaml
new file mode 100644
index 000000000..2074f1ea8
--- /dev/null
+++ b/manifests/type/sub-cluster/initinfra/replacements/kustomization.yaml
@@ -0,0 +1,3 @@
+resources:
+  - ../../../../../../../airshipctl/manifests/function/flux/source-controller/replacements
+  - ../../../../../../../airshipctl/manifests/function/flux/helm-controller/replacements
diff --git a/manifests/type/sub-cluster/phases/kustomization.yaml b/manifests/type/sub-cluster/phases/kustomization.yaml
new file mode 100644
index 000000000..0ef6c3bf0
--- /dev/null
+++ b/manifests/type/sub-cluster/phases/kustomization.yaml
@@ -0,0 +1,2 @@
+resources:
+  - phases.yaml
diff --git a/manifests/type/sub-cluster/phases/phases.yaml b/manifests/type/sub-cluster/phases/phases.yaml
new file mode 100644
index 000000000..ebaf970df
--- /dev/null
+++ b/manifests/type/sub-cluster/phases/phases.yaml
@@ -0,0 +1,36 @@
+---
+apiVersion: airshipit.org/v1alpha1
+kind: Phase
+metadata:
+  name: initinfra
+  clusterName: sub-cluster
+config:
+  executorRef:
+    apiVersion: airshipit.org/v1alpha1
+    kind: KubernetesApply
+    name: kubernetes-apply
+  documentEntryPoint: sub-clusters/sub-cluster/initinfra
+---
+apiVersion: airshipit.org/v1alpha1
+kind: Phase
+metadata:
+  name: initinfra-networking
+  clusterName: sub-cluster
+config:
+  executorRef:
+    apiVersion: airshipit.org/v1alpha1
+    kind: KubernetesApply
+    name: kubernetes-apply
+  documentEntryPoint: sub-clusters/sub-cluster/initinfra-networking
+---
+apiVersion: airshipit.org/v1alpha1
+kind: Phase
+metadata:
+  name: workload
+  clusterName: sub-cluster
+config:
+  executorRef:
+    apiVersion: airshipit.org/v1alpha1
+    kind: KubernetesApply
+    name: kubernetes-apply
+  documentEntryPoint: sub-clusters/sub-cluster/workload
diff --git a/manifests/type/sub-cluster/workload/kustomization.yaml b/manifests/type/sub-cluster/workload/kustomization.yaml
new file mode 100644
index 000000000..e584213cf
--- /dev/null
+++ b/manifests/type/sub-cluster/workload/kustomization.yaml
@@ -0,0 +1 @@
+resources: []