diff --git a/js/admin/batch-size-controller.js b/js/admin/batch-size-controller.js
new file mode 100644
index 0000000..f8be869
--- /dev/null
+++ b/js/admin/batch-size-controller.js
@@ -0,0 +1,27 @@
+document.addEventListener("DOMContentLoaded", function () {
+    const bulkUploadField = document.querySelector("#useBulkUpload");
+    const batchSizeWrapper = document.querySelector("#batchSize__wrapper");
+    const batchSizeField = document.querySelector("#batchSize");
+
+    // Handle toggling display of our batch size field
+    if (bulkUploadField && batchSizeWrapper) {
+        bulkUploadField.addEventListener("input", function () {
+            batchSizeWrapper.classList.toggle("hidden");
+        });
+    }
+
+    // Some simple validation
+    if (batchSizeField) {
+        batchSizeField.addEventListener("input", function (event) {
+            let batchSize = parseInt(batchSizeField.value);
+            let minBatchSize = parseInt(batchSizeField.getAttribute("min"));
+            let maxBatchSize = parseInt(batchSizeField.getAttribute("max"));
+            if (batchSize < minBatchSize) {
+                batchSize = minBatchSize;
+            } else if (batchSize > maxBatchSize) {
+                batchSize = maxBatchSize;
+            }
+            batchSizeField.value = batchSize;
+        });
+    }
+});
diff --git a/src/Controller.php b/src/Controller.php
index c2df21b..ad45103 100644
--- a/src/Controller.php
+++ b/src/Controller.php
@@ -49,6 +49,12 @@ public function __construct()
             1
         );
 
+        add_action(
+            'admin_enqueue_scripts',
+            [ $this, 'wp2staticAdminScripts' ],
+            0
+        );
+
         do_action(
             'wp2static_register_addon',
             'wp2static-addon-cloudflare-workers',
@@ -129,6 +135,17 @@ public static function seedOptions(): void
                 'ie 13e736c51a7a73dabc0b83f75d3bedce'
             )
         );
+
+        $wpdb->query(
+            $wpdb->prepare(
+                "INSERT IGNORE INTO {$wpdb->prefix}wp2static_addon_cloudflare_workers_options " .
+                    '(name, value, label, description) VALUES (%s, %s, %s, %s);',
+                'batchSize',
+                Deployer::BATCH_SIZE_DEFAULT,
+                'Batch Size',
+                'Number of files to include in each batch'
+            )
+        );
     }
 
     /**
@@ -334,6 +351,17 @@ public static function saveOptionsFromUI(): void
             [ 'name' => 'accountID' ]
         );
 
+        $batchSize = sanitize_text_field($_POST['batchSize']);
+        if (!$batchSize) {
+            $batchSize = (string)Deployer::BATCH_SIZE_DEFAULT;
+        }
+        $batchSize = preg_replace('/\D/', '', $batchSize);
+        $wpdb->update(
+            $tableName,
+            [ 'value' => $batchSize ],
+            [ 'name' => 'batchSize' ]
+        );
+
         wp_safe_redirect(admin_url('admin.php?page=wp2static-addon-cloudflare-workers'));
         exit;
     }
@@ -372,4 +400,16 @@ public function addOptionsPage(): void
             [ $this, 'renderCloudflareWorkersPage' ]
         );
     }
+
+    public static function wp2staticAdminScripts(): void
+    {
+        wp_register_script(
+            'wp2static_addon_cloudflare_admin_scripts',
+            plugins_url('../js/admin/batch-size-controller.js', __FILE__),
+            [],
+            Config::get('version'),
+            false
+        );
+        wp_enqueue_script('wp2static_addon_cloudflare_admin_scripts');
+    }
 }
diff --git a/src/Deployer.php b/src/Deployer.php
index 59af459..b407c2e 100644
--- a/src/Deployer.php
+++ b/src/Deployer.php
@@ -23,7 +23,7 @@
  */
 class Deployer
 {
-
+    public const BATCH_SIZE_DEFAULT = 10000;
     public function uploadFiles( string $processedSitePath ): void
     {
         if (Controller::getValue('useBulkUpload') === '1') {
@@ -211,9 +211,10 @@ public function bulkUploadFiles( string $processedSitePath ): void
         $batches = [];
 
         $filesInBatch = 0;
-        // TODO: add select menu for user-overriding batch size or be clever and auto-retry
-        // with smaller batch sizes on errors
-        $fileLimit = 10000;
+        $fileLimit = Controller::getValue('batchSize');
+        if (!$fileLimit) {
+            $fileLimit = self::BATCH_SIZE_DEFAULT;
+        }
         $pathsInBatch = [];
 
         // TODO: Q: will iterator_to_array() allow rm'ing unused var?
diff --git a/tools/build_release.sh b/tools/build_release.sh
index 50f32ff..0f74b7f 100755
--- a/tools/build_release.sh
+++ b/tools/build_release.sh
@@ -30,6 +30,7 @@ cp -r $EXEC_DIR/wp2static-addon-cloudflare-workers.php $TMP_DIR/wp2static-addon-
 cp -r $EXEC_DIR/src $TMP_DIR/wp2static-addon-cloudflare-workers/
 cp -r $EXEC_DIR/vendor $TMP_DIR/wp2static-addon-cloudflare-workers/
 cp -r $EXEC_DIR/views $TMP_DIR/wp2static-addon-cloudflare-workers/
+cp -r $EXEC_DIR/js $TMP_DIR/wp2static-addon-cloudflare-workers/
 
 cd $TMP_DIR
 
diff --git a/views/admin-page.latte b/views/admin-page.latte
index b30dbb9..935e2aa 100644
--- a/views/admin-page.latte
+++ b/views/admin-page.latte
@@ -89,6 +89,24 @@
             </td>
         </tr>
 
+        <tr id="batchSize__wrapper" class="{=(int) $options[useBulkUpload]->value === 0 ? hidden : ''}">
+            <td style="width:50%;">
+                <label for="{$options[batchSize]->name}">
+                  {$options[batchSize]->label}
+                </label>
+            </td>
+            <td>
+                <input
+                    id="{$options[batchSize]->name}"
+                    name="{$options[batchSize]->name}"
+                    type="number"
+                    min="1"
+                    max="10000"
+                    value="{$options[batchSize]->value}"
+                />
+            </td>
+        </tr>
+
     </tbody>
 </table>