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diff --git a/web/core/modules/layout_builder/src/Plugin/SectionStorage/SectionStorageBase.php b/web/core/modules/layout_builder/src/Plugin/SectionStorage/SectionStorageBase.php
new file mode 100644
index 000000000..c419060c4
--- /dev/null
+++ b/web/core/modules/layout_builder/src/Plugin/SectionStorage/SectionStorageBase.php
@@ -0,0 +1,106 @@
+<?php
+
+namespace Drupal\layout_builder\Plugin\SectionStorage;
+
+use Drupal\Core\Plugin\PluginBase;
+use Drupal\layout_builder\Routing\LayoutBuilderRoutesTrait;
+use Drupal\layout_builder\Section;
+use Drupal\layout_builder\SectionListInterface;
+use Drupal\layout_builder\SectionStorageInterface;
+
+/**
+ * Provides a base class for Section Storage types.
+ *
+ * @internal
+ *   Layout Builder is currently experimental and should only be leveraged by
+ *   experimental modules and development releases of contributed modules.
+ *   See https://www.drupal.org/core/experimental for more information.
+ */
+abstract class SectionStorageBase extends PluginBase implements SectionStorageInterface {
+
+  use LayoutBuilderRoutesTrait;
+
+  /**
+   * The section storage instance.
+   *
+   * @var \Drupal\layout_builder\SectionListInterface|null
+   */
+  protected $sectionList;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setSectionList(SectionListInterface $section_list) {
+    $this->sectionList = $section_list;
+    return $this;
+  }
+
+  /**
+   * Gets the section list.
+   *
+   * @return \Drupal\layout_builder\SectionListInterface
+   *   The section list.
+   *
+   * @throws \RuntimeException
+   *   Thrown if ::setSectionList() is not called first.
+   */
+  protected function getSectionList() {
+    if (!$this->sectionList) {
+      throw new \RuntimeException(sprintf('%s::setSectionList() must be called first', static::class));
+    }
+    return $this->sectionList;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getStorageType() {
+    return $this->getPluginId();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function count() {
+    return $this->getSectionList()->count();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getSections() {
+    return $this->getSectionList()->getSections();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getSection($delta) {
+    return $this->getSectionList()->getSection($delta);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function appendSection(Section $section) {
+    $this->getSectionList()->appendSection($section);
+    return $this;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function insertSection($delta, Section $section) {
+    $this->getSectionList()->insertSection($delta, $section);
+    return $this;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function removeSection($delta) {
+    $this->getSectionList()->removeSection($delta);
+    return $this;
+  }
+
+}