diff --git a/frontend/src/pages/NewMaterialsPage.css b/frontend/src/pages/NewMaterialsPage.css
index e0cb3db..8fd8cf3 100644
--- a/frontend/src/pages/NewMaterialsPage.css
+++ b/frontend/src/pages/NewMaterialsPage.css
@@ -289,16 +289,14 @@
   cursor: not-allowed;
 }
 
-/* 자재 테이블 - 엑셀 스타일 (반응형 제거, 고정 너비 + 스크롤) */
+/* 자재 테이블 - 엑셀 스타일 */
 .materials-grid {
   background: white;
   margin: 16px 24px;
-  overflow: auto;
+  overflow-y: auto;
+  overflow-x: hidden;
   max-height: calc(100vh - 220px);
   border: 1px solid #d1d5db;
-  border-radius: 4px;
-  min-width: 1200px; /* 최소 너비 강제 */
-  width: fit-content; /* 내용에 맞는 너비 */
 }
 
 .detailed-grid-header {
@@ -337,7 +335,7 @@
 
 /* PIPE 전용 헤더 - 9개 컬럼 */
 .detailed-grid-header.pipe-header {
-  grid-template-columns: 60px 90px 130px 80px 100px 200px 120px 180px 100px !important;
+  grid-template-columns: 5% 8% 12% 8% 10% 20% 12% 15% 10% !important;
 }
 
 .detailed-grid-header.pipe-header > div,
@@ -352,7 +350,7 @@
 
 /* PIPE 전용 행 - 9개 컬럼 */
 .detailed-material-row.pipe-row {
-  grid-template-columns: 60px 90px 130px 80px 100px 200px 120px 180px 100px !important;
+  grid-template-columns: 5% 8% 12% 8% 10% 20% 12% 15% 10% !important;
 }
 
 .detailed-material-row.pipe-row .material-cell {
@@ -365,7 +363,7 @@
 
 /* SPECIAL 전용 헤더 - 10개 컬럼 */
 .detailed-grid-header.special-header {
-  grid-template-columns: 60px 90px 150px 80px 100px 180px 120px 120px 180px 100px;
+  grid-template-columns: 5% 8% 14% 8% 10% 18% 12% 12% 18% 5%;
   
   
 }
@@ -382,21 +380,21 @@
 
 /* SPECIAL 전용 행 - 10개 컬럼 */
 .detailed-material-row.special-row {
-  grid-template-columns: 60px 90px 150px 80px 100px 180px 120px 120px 180px 100px;
+  grid-template-columns: 5% 8% 14% 8% 10% 18% 12% 12% 18% 5%;
   
   
 }
 
 /* BOLT 전용 헤더 - 9개 컬럼 */
 .detailed-grid-header.bolt-header {
-  grid-template-columns: 60px 90px 130px 80px 100px 200px 120px 180px 100px;
+  grid-template-columns: 5% 8% 12% 8% 10% 20% 12% 15% 10%;
   
   
 }
 
 /* BOLT 전용 행 - 9개 컬럼 */
 .detailed-material-row.bolt-row {
-  grid-template-columns: 60px 90px 130px 80px 100px 200px 120px 180px 100px;
+  grid-template-columns: 5% 8% 12% 8% 10% 20% 12% 15% 10%;
   
   
 }
@@ -435,14 +433,14 @@
 
 /* U-BOLT 전용 헤더 - 8개 컬럼 */
 .detailed-grid-header.ubolt-header {
-  grid-template-columns: 60px 90px 130px 80px 180px 120px 180px 100px;
+  grid-template-columns: 5% 10% 15% 10% 20% 12% 18% 10%;
   
   
 }
 
 /* U-BOLT 전용 행 - 8개 컬럼 */
 .detailed-material-row.ubolt-row {
-  grid-template-columns: 60px 90px 130px 80px 180px 120px 180px 100px;
+  grid-template-columns: 5% 10% 15% 10% 20% 12% 18% 10%;
   
   
 }
@@ -483,14 +481,14 @@
 
 /* SUPPORT 전용 헤더 - 9개 컬럼 */
 .detailed-grid-header.support-header {
-  grid-template-columns: 60px 90px 150px 80px 100px 180px 120px 180px 100px;
+  grid-template-columns: 5% 8% 14% 8% 10% 18% 12% 15% 10%;
   
   
 }
 
 /* SUPPORT 전용 행 - 9개 컬럼 */
 .detailed-material-row.support-row {
-  grid-template-columns: 60px 90px 150px 80px 100px 180px 120px 180px 100px;
+  grid-template-columns: 5% 8% 14% 8% 10% 18% 12% 15% 10%;
   
   
 }
@@ -527,7 +525,7 @@
 
 /* 플랜지 전용 헤더 - 10개 컬럼 */
 .detailed-grid-header.flange-header {
-  grid-template-columns: 60px 90px 100px 80px 100px 100px 180px 100px 180px 100px;
+  grid-template-columns: 5% 8% 10% 8% 10% 10% 18% 10% 15% 6%;
   
   
 }
@@ -544,7 +542,7 @@
 
 /* 플랜지 전용 행 - 10개 컬럼 */
 .detailed-material-row.flange-row {
-  grid-template-columns: 60px 90px 100px 80px 100px 100px 180px 100px 180px 100px;
+  grid-template-columns: 5% 8% 10% 8% 10% 10% 18% 10% 15% 6%;
   
   
 }
@@ -559,7 +557,7 @@
 
 /* 피팅 전용 헤더 - 10개 컬럼 */
 .detailed-grid-header.fitting-header {
-  grid-template-columns: 60px 90px 180px 80px 80px 100px 180px 100px 180px 100px;
+  grid-template-columns: 5% 8% 18% 8% 8% 10% 18% 10% 15% 0%;
   
   
 }
@@ -576,7 +574,7 @@
 
 /* 피팅 전용 행 - 10개 컬럼 */
 .detailed-material-row.fitting-row {
-  grid-template-columns: 60px 90px 180px 80px 80px 100px 180px 100px 180px 100px;
+  grid-template-columns: 5% 8% 18% 8% 8% 10% 18% 10% 15% 0%;
   
   
 }
@@ -591,7 +589,7 @@
 
 /* 밸브 전용 헤더 - 9개 컬럼 (스케줄 제거, 타입 너비 증가) */
 .detailed-grid-header.valve-header {
-  grid-template-columns: 60px 180px 120px 80px 80px 180px 100px 180px 100px;
+  grid-template-columns: 5% 18% 12% 8% 8% 18% 10% 15% 6%;
   
   
 }
@@ -608,7 +606,7 @@
 
 /* 밸브 전용 행 - 9개 컬럼 (스케줄 제거, 타입 너비 증가) */
 .detailed-material-row.valve-row {
-  grid-template-columns: 60px 180px 120px 80px 80px 180px 100px 180px 100px;
+  grid-template-columns: 5% 18% 12% 8% 8% 18% 10% 15% 6%;
   
   
 }
@@ -623,7 +621,7 @@
 
 /* 가스켓 전용 헤더 - 11개 컬럼 (타입 좁게, 상세내역 넓게, 두께 추가) */
 .detailed-grid-header.gasket-header {
-  grid-template-columns: 60px 90px 100px 80px 80px 120px 180px 80px 100px 180px 100px;
+  grid-template-columns: 5% 8% 10% 7% 7% 10% 18% 7% 10% 15% 3%;
   
   
 }
@@ -640,7 +638,7 @@
 
 /* 가스켓 전용 행 - 11개 컬럼 (타입 좁게, 상세내역 넓게, 두께 추가) */
 .detailed-material-row.gasket-row {
-  grid-template-columns: 60px 90px 100px 80px 80px 120px 180px 80px 100px 180px 100px;
+  grid-template-columns: 5% 8% 10% 7% 7% 10% 18% 7% 10% 15% 3%;
   
   
 }
@@ -868,7 +866,7 @@
 
 /* UNKNOWN 전용 헤더 - 5개 컬럼 */
 .detailed-grid-header.unknown-header {
-  grid-template-columns: 60px 100px 1fr 180px 100px;
+  grid-template-columns: 5% 10% 1fr 20% 10%;
   
   
 }
@@ -885,7 +883,7 @@
 
 /* UNKNOWN 전용 행 - 5개 컬럼 */
 .detailed-material-row.unknown-row {
-  grid-template-columns: 60px 100px 1fr 180px 100px;
+  grid-template-columns: 5% 10% 1fr 20% 10%;
   
   
 }