diff --git a/chartofaccountDIT/templates/chartofaccountDIT/choose_year.html b/chartofaccountDIT/templates/chartofaccountDIT/choose_year.html
index 1fc3b03ee..9ddb37070 100644
--- a/chartofaccountDIT/templates/chartofaccountDIT/choose_year.html
+++ b/chartofaccountDIT/templates/chartofaccountDIT/choose_year.html
@@ -1,4 +1,4 @@
-{% extends "wide_content.html" %}
+{% extends "base_generic.html" %}
 {% load breadcrumbs %}
 
 {% block breadcrumbs %}
diff --git a/chartofaccountDIT/templates/chartofaccountDIT/quick_links.html b/chartofaccountDIT/templates/chartofaccountDIT/quick_links.html
index d3e116ae5..f4064afef 100644
--- a/chartofaccountDIT/templates/chartofaccountDIT/quick_links.html
+++ b/chartofaccountDIT/templates/chartofaccountDIT/quick_links.html
@@ -1,4 +1,4 @@
-{% extends "wide_content.html" %}
+{% extends "base_generic.html" %}
 {% load chart_of_account %}
 
 {% load breadcrumbs %}
diff --git a/core/templates/404.html b/core/templates/404.html
index d0f1b04af..9f66b8cb5 100644
--- a/core/templates/404.html
+++ b/core/templates/404.html
@@ -1,4 +1,4 @@
-{% extends "wide_content.html" %}
+{% extends "base_generic.html" %}
 {% load breadcrumbs %}
 
 {% block breadcrumbs %}
diff --git a/core/templates/core/info.html b/core/templates/core/info.html
index d337873bb..1bf8e4cd4 100644
--- a/core/templates/core/info.html
+++ b/core/templates/core/info.html
@@ -1,4 +1,4 @@
-{% extends "wide_content.html" %}
+{% extends "base_generic.html" %}
 
 {% block content %}
     <h2 class="govuk-heading-l">{{ view.heading }}</h2>
diff --git a/core/templates/core/table_filter_generic.html b/core/templates/core/table_filter_generic.html
index d2fdf28b2..95846f827 100644
--- a/core/templates/core/table_filter_generic.html
+++ b/core/templates/core/table_filter_generic.html
@@ -1,4 +1,4 @@
-{% extends "wide_content.html" %}
+{% extends "base_generic.html" %}
 {% load breadcrumbs %}
 
 {% block breadcrumbs %}
diff --git a/core/templates/wide_content.html b/core/templates/wide_content.html
deleted file mode 100644
index cd6ecdfe5..000000000
--- a/core/templates/wide_content.html
+++ /dev/null
@@ -1,2 +0,0 @@
-{% extends "base_generic.html" %}
-TEST
diff --git a/forecast/templates/forecast/edit/choose_cost_centre.html b/forecast/templates/forecast/edit/choose_cost_centre.html
index 03b2fc139..defd95dc0 100644
--- a/forecast/templates/forecast/edit/choose_cost_centre.html
+++ b/forecast/templates/forecast/edit/choose_cost_centre.html
@@ -1,4 +1,4 @@
-{% extends "wide_content.html" %}
+{% extends "base_generic.html" %}
 {% load util vite %}
 
 {% load breadcrumbs %}
diff --git a/forecast/templates/forecast/edit/edit_locked.html b/forecast/templates/forecast/edit/edit_locked.html
index d7fa00460..968388bc9 100644
--- a/forecast/templates/forecast/edit/edit_locked.html
+++ b/forecast/templates/forecast/edit/edit_locked.html
@@ -1,4 +1,4 @@
-{% extends "wide_content.html" %}
+{% extends "base_generic.html" %}
 {% load breadcrumbs %}
 
 {% block breadcrumbs %}
diff --git a/forecast/templates/forecast/edit/forecast_base.html b/forecast/templates/forecast/edit/forecast_base.html
index deb5ff55d..ac6769791 100644
--- a/forecast/templates/forecast/edit/forecast_base.html
+++ b/forecast/templates/forecast/edit/forecast_base.html
@@ -1,4 +1,4 @@
-{% extends "wide_content.html" %}
+{% extends "base_generic.html" %}
 
 {% block content %}
 <div class="app-pane__content">
diff --git a/forecast/templates/forecast/file_upload.html b/forecast/templates/forecast/file_upload.html
index 3dc92a7f7..08743e5a6 100644
--- a/forecast/templates/forecast/file_upload.html
+++ b/forecast/templates/forecast/file_upload.html
@@ -1,4 +1,4 @@
-{% extends "wide_content.html" %}
+{% extends "base_generic.html" %}
 {% load breadcrumbs %}
 
 {% block breadcrumbs %}
diff --git a/forecast/templates/forecast/view/cost_centre.html b/forecast/templates/forecast/view/cost_centre.html
index e254999b3..e0fcc99e5 100644
--- a/forecast/templates/forecast/view/cost_centre.html
+++ b/forecast/templates/forecast/view/cost_centre.html
@@ -1,4 +1,4 @@
-{% extends "wide_content.html" %}
+{% extends "base_generic.html" %}
 {% load render_table from django_tables2 %}
 {% load breadcrumbs %}
 {% load forecast_permissions %}
diff --git a/forecast/templates/forecast/view/expenditure_details/expenditure_details_base.html b/forecast/templates/forecast/view/expenditure_details/expenditure_details_base.html
index c2d190caf..ec3749758 100644
--- a/forecast/templates/forecast/view/expenditure_details/expenditure_details_base.html
+++ b/forecast/templates/forecast/view/expenditure_details/expenditure_details_base.html
@@ -1,4 +1,4 @@
-{% extends "wide_content.html" %}
+{% extends "base_generic.html" %}
 {% load render_table from django_tables2 %}
 {% load breadcrumbs %}
 
diff --git a/forecast/templates/forecast/view/hierarchy_base.html b/forecast/templates/forecast/view/hierarchy_base.html
index b95ec8636..c71435b0f 100644
--- a/forecast/templates/forecast/view/hierarchy_base.html
+++ b/forecast/templates/forecast/view/hierarchy_base.html
@@ -1,4 +1,4 @@
-{% extends "wide_content.html" %}
+{% extends "base_generic.html" %}
 {% load render_table from django_tables2 %}
 {% load breadcrumbs %}
 
diff --git a/forecast/templates/forecast/view/programme_details/programme_details_base.html b/forecast/templates/forecast/view/programme_details/programme_details_base.html
index 17d239caf..b6a255421 100644
--- a/forecast/templates/forecast/view/programme_details/programme_details_base.html
+++ b/forecast/templates/forecast/view/programme_details/programme_details_base.html
@@ -1,4 +1,4 @@
-{% extends "wide_content.html" %}
+{% extends "base_generic.html" %}
 {% load render_table from django_tables2 %}
 {% load breadcrumbs %}
 
diff --git a/forecast/templates/forecast/view/project_details/project_details_base.html b/forecast/templates/forecast/view/project_details/project_details_base.html
index 551ef847b..024757271 100644
--- a/forecast/templates/forecast/view/project_details/project_details_base.html
+++ b/forecast/templates/forecast/view/project_details/project_details_base.html
@@ -1,4 +1,4 @@
-{% extends "wide_content.html" %}
+{% extends "base_generic.html" %}
 {% load render_table from django_tables2 %}
 {% load breadcrumbs %}
 
diff --git a/upload_split_file/templates/percentage_file_upload.html b/upload_split_file/templates/percentage_file_upload.html
index ed353a368..8dba07597 100644
--- a/upload_split_file/templates/percentage_file_upload.html
+++ b/upload_split_file/templates/percentage_file_upload.html
@@ -1,4 +1,4 @@
-{% extends "wide_content.html" %}
+{% extends "base_generic.html" %}
 {% load breadcrumbs %}
 
 {% block breadcrumbs %}