diff --git a/frontend/src/pages/NewMaterialsPage.css b/frontend/src/pages/NewMaterialsPage.css
index d1a74bd..70bdb4f 100644
--- a/frontend/src/pages/NewMaterialsPage.css
+++ b/frontend/src/pages/NewMaterialsPage.css
@@ -302,7 +302,9 @@
   display: grid;
   /* 기본 그리드는 사용하지 않음 - 각 카테고리별 전용 클래스 사용 */
   background: #f3f4f6;
-  border: 1px solid #d1d5db;
+  border-top: 1px solid #d1d5db;
+  border-left: 1px solid #d1d5db;
+  border-right: 1px solid #d1d5db;
   border-bottom: 2px solid #9ca3af;
   font-size: 11px;
   font-weight: 600;
@@ -349,7 +351,7 @@
 }
 
 .detailed-material-row.pipe-row .material-cell {
-  border-right: 1px solid #e5e7eb;
+  border-right: 1px solid #d1d5db;
 }
 
 .detailed-material-row.pipe-row .material-cell:last-child {
@@ -395,7 +397,7 @@
 }
 
 .detailed-material-row.special-row .material-cell {
-  border-right: 1px solid #e5e7eb;
+  border-right: 1px solid #d1d5db;
 }
 
 /* BOLT 헤더 테두리 */
@@ -411,7 +413,7 @@
 
 /* BOLT 행 테두리 */
 .detailed-material-row.bolt-row .material-cell {
-  border-right: 1px solid #e5e7eb;
+  border-right: 1px solid #d1d5db;
 }
 
 .detailed-material-row.bolt-row .material-cell:last-child {
@@ -452,7 +454,7 @@
 
 /* U-BOLT 행 테두리 */
 .detailed-material-row.ubolt-row .material-cell {
-  border-right: 1px solid #e5e7eb;
+  border-right: 1px solid #d1d5db;
 }
 .detailed-material-row.ubolt-row .material-cell:last-child {
   border-right: none;
@@ -500,7 +502,7 @@
 
 /* SUPPORT 행 테두리 */
 .detailed-material-row.support-row .material-cell {
-  border-right: 1px solid #e5e7eb;
+  border-right: 1px solid #d1d5db;
 }
 .detailed-material-row.support-row .material-cell:last-child {
   border-right: none;
@@ -543,7 +545,7 @@
 }
 
 .detailed-material-row.flange-row .material-cell {
-  border-right: 1px solid #e5e7eb;
+  border-right: 1px solid #d1d5db;
 }
 
 .detailed-material-row.flange-row .material-cell:last-child {
@@ -575,7 +577,7 @@
 }
 
 .detailed-material-row.fitting-row .material-cell {
-  border-right: 1px solid #e5e7eb;
+  border-right: 1px solid #d1d5db;
 }
 
 .detailed-material-row.fitting-row .material-cell:last-child {
@@ -607,7 +609,7 @@
 }
 
 .detailed-material-row.valve-row .material-cell {
-  border-right: 1px solid #e5e7eb;
+  border-right: 1px solid #d1d5db;
 }
 
 .detailed-material-row.valve-row .material-cell:last-child {
@@ -639,7 +641,7 @@
 }
 
 .detailed-material-row.gasket-row .material-cell {
-  border-right: 1px solid #e5e7eb;
+  border-right: 1px solid #d1d5db;
 }
 
 .detailed-material-row.gasket-row .material-cell:last-child {
@@ -884,7 +886,7 @@
 }
 
 .detailed-material-row.unknown-row .material-cell {
-  border-right: 1px solid #e5e7eb;
+  border-right: 1px solid #d1d5db;
 }
 
 .detailed-material-row.unknown-row .material-cell:last-child {