diff --git a/frontend/components/screen/ScreenDesigner.tsx b/frontend/components/screen/ScreenDesigner.tsx
index 92d3f560..4d644524 100644
--- a/frontend/components/screen/ScreenDesigner.tsx
+++ b/frontend/components/screen/ScreenDesigner.tsx
@@ -2338,45 +2338,43 @@ export default function ScreenDesigner({ selectedScreen, onBackToList }: ScreenD
             snapToGrid: layout.gridSettings?.snapToGrid,
           });
 
-          // 웹타입별 기본 그리드 컬럼 수 계산
-          const getDefaultGridColumns = (widgetType: string): number => {
+          // 웹타입별 기본 너비 계산 (10px 단위 고정)
+          const getDefaultWidth = (widgetType: string): number => {
             const widthMap: Record<string, number> = {
-              // 텍스트 입력 계열 (넓게)
-              text: 4, // 1/3 (33%)
-              email: 4, // 1/3 (33%)
-              tel: 3, // 1/4 (25%)
-              url: 4, // 1/3 (33%)
-              textarea: 6, // 절반 (50%)
+              // 텍스트 입력 계열
+              text: 200,
+              email: 200,
+              tel: 150,
+              url: 250,
+              textarea: 300,
 
-              // 숫자/날짜 입력 (중간)
-              number: 2, // 2/12 (16.67%)
-              decimal: 2, // 2/12 (16.67%)
-              date: 3, // 1/4 (25%)
-              datetime: 3, // 1/4 (25%)
-              time: 2, // 2/12 (16.67%)
+              // 숫자/날짜 입력
+              number: 120,
+              decimal: 120,
+              date: 150,
+              datetime: 180,
+              time: 120,
 
-              // 선택 입력 (중간)
-              select: 3, // 1/4 (25%)
-              radio: 3, // 1/4 (25%)
-              checkbox: 2, // 2/12 (16.67%)
-              boolean: 2, // 2/12 (16.67%)
+              // 선택 입력
+              select: 180,
+              radio: 180,
+              checkbox: 120,
+              boolean: 120,
 
-              // 코드/참조 (넓게)
-              code: 3, // 1/4 (25%)
-              entity: 4, // 1/3 (33%)
+              // 코드/참조
+              code: 180,
+              entity: 200,
 
-              // 파일/이미지 (넓게)
-              file: 4, // 1/3 (33%)
-              image: 3, // 1/4 (25%)
+              // 파일/이미지
+              file: 250,
+              image: 200,
 
               // 기타
-              button: 2, // 2/12 (16.67%)
-              label: 2, // 2/12 (16.67%)
+              button: 100,
+              label: 100,
             };
 
-            const defaultColumns = widthMap[widgetType] || 3; // 기본값 3 (1/4, 25%)
-            console.log("🎯 [ScreenDesigner] getDefaultGridColumns:", { widgetType, defaultColumns });
-            return defaultColumns;
+            return widthMap[widgetType] || 200; // 기본값 200px
           };
 
           // 웹타입별 기본 높이 계산
@@ -2544,24 +2542,12 @@ export default function ScreenDesigner({ selectedScreen, onBackToList }: ScreenD
               const componentId = getComponentIdFromWebType(column.widgetType);
               // console.log(`🔄 폼 컨테이너 드롭: ${column.widgetType} → ${componentId}`);
 
-              // 웹타입별 적절한 gridColumns 계산
-              const calculatedGridColumns = getDefaultGridColumns(column.widgetType);
-
-              // gridColumns에 맞는 실제 너비 계산
-              const componentWidth =
-                currentGridInfo && layout.gridSettings?.snapToGrid
-                  ? calculateWidthFromColumns(
-                      calculatedGridColumns,
-                      currentGridInfo,
-                      layout.gridSettings as GridUtilSettings,
-                    )
-                  : defaultWidth;
+              // 웹타입별 기본 너비 계산 (10px 단위 고정)
+              const componentWidth = getDefaultWidth(column.widgetType);
 
               console.log("🎯 폼 컨테이너 컴포넌트 생성:", {
                 widgetType: column.widgetType,
-                calculatedGridColumns,
                 componentWidth,
-                defaultWidth,
               });
 
               newComponent = {
@@ -2576,7 +2562,6 @@ export default function ScreenDesigner({ selectedScreen, onBackToList }: ScreenD
                 componentType: componentId, // DynamicComponentRenderer용 컴포넌트 타입
                 position: { x: relativeX, y: relativeY, z: 1 } as Position,
                 size: { width: componentWidth, height: getDefaultHeight(column.widgetType) },
-                gridColumns: calculatedGridColumns,
                 // 코드 타입인 경우 코드 카테고리 정보 추가
                 ...(column.widgetType === "code" &&
                   column.codeCategory && {
@@ -2588,7 +2573,6 @@ export default function ScreenDesigner({ selectedScreen, onBackToList }: ScreenD
                   labelColor: "#212121",
                   labelFontWeight: "500",
                   labelMarginBottom: "6px",
-                  width: `${(calculatedGridColumns / (layout.gridSettings?.columns || 12)) * 100}%`, // 퍼센트 너비
                 },
                 componentConfig: {
                   type: componentId, // text-input, number-input 등
@@ -2611,36 +2595,14 @@ export default function ScreenDesigner({ selectedScreen, onBackToList }: ScreenD
             const componentId = getComponentIdFromWebType(column.widgetType);
             // console.log(`🔄 캔버스 드롭: ${column.widgetType} → ${componentId}`);
 
-            // 웹타입별 적절한 gridColumns 계산
-            const calculatedGridColumns = getDefaultGridColumns(column.widgetType);
-
-            // gridColumns에 맞는 실제 너비 계산
-            const componentWidth =
-              currentGridInfo && layout.gridSettings?.snapToGrid
-                ? calculateWidthFromColumns(
-                    calculatedGridColumns,
-                    currentGridInfo,
-                    layout.gridSettings as GridUtilSettings,
-                  )
-                : defaultWidth;
+            // 웹타입별 기본 너비 계산 (10px 단위 고정)
+            const componentWidth = getDefaultWidth(column.widgetType);
 
             console.log("🎯 캔버스 컴포넌트 생성:", {
               widgetType: column.widgetType,
-              calculatedGridColumns,
               componentWidth,
-              defaultWidth,
             });
 
-            // 🔍 이미지 타입 드래그앤드롭 디버깅
-            // if (column.widgetType === "image") {
-            //   console.log("🖼️ 이미지 컬럼 드래그앤드롭:", {
-            //     columnName: column.columnName,
-            //     widgetType: column.widgetType,
-            //     componentId,
-            //     column,
-            //   });
-            // }
-
             newComponent = {
               id: generateComponentId(),
               type: "component", // ✅ 새로운 컴포넌트 시스템 사용
@@ -2652,7 +2614,6 @@ export default function ScreenDesigner({ selectedScreen, onBackToList }: ScreenD
               componentType: componentId, // DynamicComponentRenderer용 컴포넌트 타입
               position: { x, y, z: 1 } as Position,
               size: { width: componentWidth, height: getDefaultHeight(column.widgetType) },
-              gridColumns: calculatedGridColumns,
               // 코드 타입인 경우 코드 카테고리 정보 추가
               ...(column.widgetType === "code" &&
                 column.codeCategory && {
@@ -2664,7 +2625,6 @@ export default function ScreenDesigner({ selectedScreen, onBackToList }: ScreenD
                 labelColor: "#000000", // 순수한 검정
                 labelFontWeight: "500",
                 labelMarginBottom: "8px",
-                width: `${(calculatedGridColumns / (layout.gridSettings?.columns || 12)) * 100}%`, // 퍼센트 너비
               },
               componentConfig: {
                 type: componentId, // text-input, number-input 등
diff --git a/frontend/components/screen/panels/GridPanel.tsx b/frontend/components/screen/panels/GridPanel.tsx
index f33cc601..82bb4fc4 100644
--- a/frontend/components/screen/panels/GridPanel.tsx
+++ b/frontend/components/screen/panels/GridPanel.tsx
@@ -128,49 +128,14 @@ export const GridPanel: React.FC<GridPanelProps> = ({
 
       {/* 설정 영역 */}
       <div className="flex-1 space-y-4 overflow-y-auto p-4">
-        {/* 격자 구조 */}
+        {/* 격자 구조 - 10px 단위 */}
         <div className="space-y-3">
-          <h4 className="text-xs font-semibold">격자 구조</h4>
+          <h4 className="text-xs font-semibold">격자 크기 (10px 단위)</h4>
 
-          <div className="space-y-2">
-            <Label htmlFor="columns" className="text-xs font-medium">
-              컬럼 수
-            </Label>
-            <div className="flex items-center gap-2">
-              <Input
-                id="columns"
-                type="number"
-                min={1}
-                max={safeMaxColumns}
-                value={gridSettings.columns}
-                onChange={(e) => {
-                  const value = parseInt(e.target.value, 10);
-                  if (!isNaN(value) && value >= 1 && value <= safeMaxColumns) {
-                    updateSetting("columns", value);
-                  }
-                }}
-                className="h-8 text-xs"
-              />
-              <span className="text-muted-foreground text-xs">/ {safeMaxColumns}</span>
-            </div>
-            <Slider
-              id="columns-slider"
-              min={1}
-              max={safeMaxColumns}
-              step={1}
-              value={[gridSettings.columns]}
-              onValueChange={([value]) => updateSetting("columns", value)}
-              className="w-full"
-            />
-            <div className="text-muted-foreground flex justify-between text-xs">
-              <span>1열</span>
-              <span>{safeMaxColumns}열</span>
-            </div>
-            {isColumnsTooSmall && (
-              <p className="text-xs text-amber-600">
-                ⚠️ 컬럼 너비가 너무 작습니다 (최소 {MIN_COLUMN_WIDTH}px 권장)
-              </p>
-            )}
+          <div className="bg-muted/50 rounded-md p-3">
+            <p className="text-xs text-muted-foreground">
+              모든 컴포넌트는 10px 단위로 배치되고 크기가 조정됩니다.
+            </p>
           </div>
 
           <div className="space-y-2">
@@ -181,7 +146,7 @@ export const GridPanel: React.FC<GridPanelProps> = ({
               id="gap"
               min={0}
               max={40}
-              step={2}
+              step={10}
               value={[gridSettings.gap]}
               onValueChange={([value]) => updateSetting("gap", value)}
               className="w-full"
@@ -200,7 +165,7 @@ export const GridPanel: React.FC<GridPanelProps> = ({
               id="padding"
               min={0}
               max={60}
-              step={4}
+              step={10}
               value={[gridSettings.padding]}
               onValueChange={([value]) => updateSetting("padding", value)}
               className="w-full"
@@ -288,14 +253,14 @@ export const GridPanel: React.FC<GridPanelProps> = ({
       <div className="border-t border-gray-200 bg-gray-50 p-3">
         <div className="text-muted-foreground text-xs">💡 격자 설정은 실시간으로 캔버스에 반영됩니다 </div>
 
-        {/* 해상도 및 격자 정보 */}
-        {screenResolution && actualGridInfo && (
+        {/* 해상도 정보 */}
+        {screenResolution && (
           <>
             <Separator />
-            <div className="space-y-3">
-              <h4 className="font-medium text-gray-900">격자 정보</h4>
+            <div className="space-y-2">
+              <h4 className="text-xs font-semibold">화면 정보</h4>
 
-              <div className="space-y-2 text-xs" style={{ fontSize: "12px" }}>
+              <div className="space-y-2 text-xs">
                 <div className="flex justify-between">
                   <span className="text-muted-foreground">해상도:</span>
                   <span className="font-mono">
@@ -304,25 +269,9 @@ export const GridPanel: React.FC<GridPanelProps> = ({
                 </div>
 
                 <div className="flex justify-between">
-                  <span className="text-muted-foreground">컬럼 너비:</span>
-                  <span className={`font-mono ${isColumnsTooSmall ? "text-destructive" : "text-gray-900"}`}>
-                    {actualGridInfo.columnWidth.toFixed(1)}px
-                    {isColumnsTooSmall && " (너무 작음)"}
-                  </span>
+                  <span className="text-muted-foreground">격자 단위:</span>
+                  <span className="font-mono text-primary">10px</span>
                 </div>
-
-                <div className="flex justify-between">
-                  <span className="text-muted-foreground">사용 가능 너비:</span>
-                  <span className="font-mono">
-                    {(screenResolution.width - gridSettings.padding * 2).toLocaleString()}px
-                  </span>
-                </div>
-
-                {isColumnsTooSmall && (
-                  <div className="rounded-md bg-yellow-50 p-2 text-xs text-yellow-800">
-                    💡 컬럼이 너무 작습니다. 컬럼 수를 줄이거나 간격을 줄여보세요.
-                  </div>
-                )}
               </div>
             </div>
           </>