diff --git a/adm/shop_admin/bannerformupdate.php b/adm/shop_admin/bannerformupdate.php
index ec46dbdb3..442378348 100644
--- a/adm/shop_admin/bannerformupdate.php
+++ b/adm/shop_admin/bannerformupdate.php
@@ -9,8 +9,8 @@ if ($W == 'd')
 else
     auth_check($auth[$sub_menu], "w");
 
-@mkdir(G4_DATA_PATH."/banner", 0707);
-@chmod(G4_DATA_PATH."/banner", 0707);
+@mkdir(G4_DATA_PATH."/banner", G4_DIR_PERMISSION);
+@chmod(G4_DATA_PATH."/banner", G4_DIR_PERMISSION);
 
 $bn_bimg      = $_FILES['bn_bimg']['tmp_name'];
 $bn_bimg_name = $_FILES['bn_bimg']['name'];
diff --git a/adm/shop_admin/categoryformupdate.php b/adm/shop_admin/categoryformupdate.php
index fef62b50f..11238d8da 100644
--- a/adm/shop_admin/categoryformupdate.php
+++ b/adm/shop_admin/categoryformupdate.php
@@ -34,8 +34,8 @@ if ($w == "" || $w == "u")
 }
 
 $g4['category_path'] = G4_DATA_PATH."/category";
-@mkdir($g4['category_path'], 0707);
-@chmod($g4['category_path'], 0707);
+@mkdir($g4['category_path'], G4_DIR_PERMISSION);
+@chmod($g4['category_path'], G4_DIR_PERMISSION);
 
 if ($ca_image1_del) @unlink("{$g4['category_path']}/{$ca_id}_1");
 if ($ca_image0_del) @unlink("{$g4['category_path']}/{$ca_id}_0");
diff --git a/adm/shop_admin/contentformupdate.php b/adm/shop_admin/contentformupdate.php
index eea83c0b5..fa716100d 100644
--- a/adm/shop_admin/contentformupdate.php
+++ b/adm/shop_admin/contentformupdate.php
@@ -10,8 +10,8 @@ if ($w == 'd')
 else
     auth_check($auth[$sub_menu], "w");
 
-@mkdir(G4_DATA_PATH."/content", 0707);
-@chmod(G4_DATA_PATH."/content", 0707);
+@mkdir(G4_DATA_PATH."/content", G4_DIR_PERMISSION);
+@chmod(G4_DATA_PATH."/content", G4_DIR_PERMISSION);
 
 if ($co_himg_del)  @unlink(G4_DATA_PATH."/content/{$co_id}_h");
 if ($co_timg_del)  @unlink(G4_DATA_PATH."/content/{$co_id}_t");
diff --git a/adm/shop_admin/faqmasterformupdate.php b/adm/shop_admin/faqmasterformupdate.php
index 2297f893d..6630d140c 100644
--- a/adm/shop_admin/faqmasterformupdate.php
+++ b/adm/shop_admin/faqmasterformupdate.php
@@ -10,8 +10,8 @@ if ($W == 'd')
 else
     auth_check($auth[$sub_menu], "w");
 
-@mkdir(G4_DATA_PATH."/faq", 0707);
-@chmod(G4_DATA_PATH."/faq", 0707);
+@mkdir(G4_DATA_PATH."/faq", G4_DIR_PERMISSION);
+@chmod(G4_DATA_PATH."/faq", G4_DIR_PERMISSION);
 
 if ($fm_himg_del)  @unlink(G4_DATA_PATH."/faq/{$fm_id}_h");
 if ($fm_timg_del)  @unlink(G4_DATA_PATH."/faq/{$fm_id}_t");
diff --git a/adm/shop_admin/itemcopyupdate.php b/adm/shop_admin/itemcopyupdate.php
index d2c8f2536..d722585fa 100644
--- a/adm/shop_admin/itemcopyupdate.php
+++ b/adm/shop_admin/itemcopyupdate.php
@@ -109,8 +109,8 @@ function copy_directory($src_dir, $dest_dir)
         return false;
 
     if(!is_dir($dest_dir)) {
-        @mkdir($dest_dir, 0707);
-        @chmod($dest_dir, 0707);
+        @mkdir($dest_dir, G4_DIR_PERMISSION);
+        @chmod($dest_dir, G4_DIR_PERMISSION);
     }
 
     $dir = opendir($src_dir);
@@ -126,15 +126,15 @@ function copy_directory($src_dir, $dest_dir)
         $dest_file = $dest_dir.'/'.$files[$i];
         if(is_file($src_file)) {
             copy($src_file, $dest_file);
-            @chmod($dest_file, 0606);
+            @chmod($dest_file, G4_FILE_PERMISSION);
         }
     }
 }
 
 // 파일복사
 $dest_path = G4_DATA_PATH.'/item/'.$new_it_id;
-@mkdir($dest_path, 0707);
-@chmod($dest_path, 0707);
+@mkdir($dest_path, G4_DIR_PERMISSION);
+@chmod($dest_path, G4_DIR_PERMISSION);
 $comma = '';
 $sql_img = '';
 
@@ -145,7 +145,7 @@ for($i=1; $i<=10; $i++) {
     if(is_file($file)) {
         $dstfile = $dest_path.'/'.basename($file);
         copy($file, $dstfile);
-        @chmod($dstfile, 0606);
+        @chmod($dstfile, G4_FILE_PERMISSION);
         $new_img = $new_it_id.'/'.basename($file);
     }
 
diff --git a/adm/shop_admin/itemeventformupdate.php b/adm/shop_admin/itemeventformupdate.php
index 9bc624ba0..4df9726d1 100644
--- a/adm/shop_admin/itemeventformupdate.php
+++ b/adm/shop_admin/itemeventformupdate.php
@@ -10,8 +10,8 @@ if ($w == 'd')
 else
     auth_check($auth[$sub_menu], "w");
 
-@mkdir(G4_DATA_PATH."/event", 0707);
-@chmod(G4_DATA_PATH."/event", 0707);
+@mkdir(G4_DATA_PATH."/event", G4_DIR_PERMISSION);
+@chmod(G4_DATA_PATH."/event", G4_DIR_PERMISSION);
 
 if ($ev_mimg_del)  @unlink(G4_DATA_PATH."/event/{$ev_id}_m");
 if ($ev_himg_del)  @unlink(G4_DATA_PATH."/event/{$ev_id}_h");
diff --git a/adm/shop_admin/itemformupdate.php b/adm/shop_admin/itemformupdate.php
index 4689ecedc..3bf343ec4 100644
--- a/adm/shop_admin/itemformupdate.php
+++ b/adm/shop_admin/itemformupdate.php
@@ -10,8 +10,8 @@ if ($w == '' || $w == 'u')
 else if ($w == 'd')
     auth_check($auth[$sub_menu], "d");
 
-@mkdir(G4_DATA_PATH."/item", 0707);
-@chmod(G4_DATA_PATH."/item", 0707);
+@mkdir(G4_DATA_PATH."/item", G4_DIR_PERMISSION);
+@chmod(G4_DATA_PATH."/item", G4_DIR_PERMISSION);
 
 // 파일정보
 if($w == "u") {
diff --git a/install/install_db.php b/install/install_db.php
index 960713bc3..0c414c645 100644
--- a/install/install_db.php
+++ b/install/install_db.php
@@ -419,8 +419,8 @@ if($shop_install) {
     );
 
     for ($i=0; $i<count($dir_arr); $i++) {
-        @mkdir($dir_arr[$i], 0707);
-        @chmod($dir_arr[$i], 0707);
+        @mkdir($dir_arr[$i], G4_DIR_PERMISSION);
+        @chmod($dir_arr[$i], G4_DIR_PERMISSION);
     }
 }
 ?>
diff --git a/lib/shop.lib.php b/lib/shop.lib.php
index 13b79388c..5bbbbf70f 100644
--- a/lib/shop.lib.php
+++ b/lib/shop.lib.php
@@ -635,8 +635,8 @@ function it_img_upload($srcfile, $filename, $dir)
         return '';
 
     if(!is_dir($dir)) {
-        @mkdir($dir, 0707);
-        @chmod($dir, 0707);
+        @mkdir($dir, G4_DIR_PERMISSION);
+        @chmod($dir, G4_DIR_PERMISSION);
     }
 
     $filename = preg_replace("/\s+/", "", $filename);
@@ -660,7 +660,7 @@ function upload_file($srcfile, $destfile, $dir)
     if ($destfile == "") return false;
     // 업로드 한후 , 퍼미션을 변경함
     @move_uploaded_file($srcfile, $dir.'/'.$destfile);
-    @chmod($dir.'/'.$destfile, 0606);
+    @chmod($dir.'/'.$destfile, G4_FILE_PERMISSION);
     return true;
 }
 
diff --git a/lib/thumb.lib.php b/lib/thumb.lib.php
index c3bee165d..4445aadd9 100644
--- a/lib/thumb.lib.php
+++ b/lib/thumb.lib.php
@@ -17,7 +17,7 @@ class g4_thumb {
     var $green = 0xff;
     var $blue = 0xff;
     var $quality = 100;
-    var $permission = 0606;
+    var $permission = G4_FILE_PERMISSION;
 
     function g4_thumb($path, $width) {
         $this->set_path($path);
@@ -27,8 +27,8 @@ class g4_thumb {
     // 경로
     function set_path($path) {
         $this->path = $path;
-        @mkdir($path, 0707);
-        @chmod($path, 0707);
+        @mkdir($path, G4_DIR_PERMISSION);
+        @chmod($path, G4_DIR_PERMISSION);
     }
 
     function set_width($width) {