diff --git a/frontend/components/screen/ResponsiveGridRenderer.tsx b/frontend/components/screen/ResponsiveGridRenderer.tsx
index 00e0dc53..c718c70e 100644
--- a/frontend/components/screen/ResponsiveGridRenderer.tsx
+++ b/frontend/components/screen/ResponsiveGridRenderer.tsx
@@ -370,7 +370,46 @@ export function ResponsiveGridRenderer({
 
         const { normalComps } = processedRow;
         const allButtons = normalComps.every((c) => isButtonComponent(c));
-        const gap = isMobile ? 8 : allButtons ? 8 : getRowGap(normalComps, canvasWidth);
+
+        // 데스크톱에서 버튼만 있는 행: 디자이너의 x, width를 비율로 적용
+        if (allButtons && normalComps.length > 0 && !isMobile) {
+          const rowHeight = Math.max(...normalComps.map(c => c.size?.height || 40));
+
+          return (
+            <div
+              key={`row-${rowIndex}`}
+              className="relative w-full flex-shrink-0"
+              style={{
+                height: `${rowHeight}px`,
+                marginTop: rowMarginTop > 0 ? `${rowMarginTop}px` : undefined,
+              }}
+            >
+              {normalComps.map((component) => {
+                const typeId = getComponentTypeId(component);
+                const leftPct = (component.position.x / canvasWidth) * 100;
+                const widthPct = ((component.size?.width || 90) / canvasWidth) * 100;
+
+                return (
+                  <div
+                    key={component.id}
+                    data-component-id={component.id}
+                    data-component-type={typeId}
+                    style={{
+                      position: "absolute",
+                      left: `${leftPct}%`,
+                      width: `${widthPct}%`,
+                      height: `${component.size?.height || 40}px`,
+                    }}
+                  >
+                    {renderComponent(component)}
+                  </div>
+                );
+              })}
+            </div>
+          );
+        }
+
+        const gap = isMobile ? 8 : getRowGap(normalComps, canvasWidth);
 
         const hasFlexHeightComp = normalComps.some((c) => {
           const h = c.size?.height || 0;
@@ -382,7 +421,6 @@ export function ResponsiveGridRenderer({
             key={`row-${rowIndex}`}
             className={cn(
               "flex w-full flex-wrap overflow-hidden",
-              allButtons && "justify-end px-2 py-1",
               hasFlexHeightComp ? "min-h-0 flex-1" : "flex-shrink-0"
             )}
             style={{ gap: `${gap}px`, marginTop: rowMarginTop > 0 ? `${rowMarginTop}px` : undefined }}
diff --git a/frontend/components/v2/config-panels/V2SplitPanelLayoutConfigPanel.tsx b/frontend/components/v2/config-panels/V2SplitPanelLayoutConfigPanel.tsx
index a490d6b6..ae5679b6 100644
--- a/frontend/components/v2/config-panels/V2SplitPanelLayoutConfigPanel.tsx
+++ b/frontend/components/v2/config-panels/V2SplitPanelLayoutConfigPanel.tsx
@@ -157,10 +157,13 @@ function SortableColumnRow({
       />
       <Input
         value={col.width || ""}
-        onChange={(e) => onWidthChange(parseInt(e.target.value) || 100)}
-        placeholder="너비"
+        onChange={(e) => onWidthChange(parseInt(e.target.value) || 20)}
+        placeholder="20"
         className="h-6 w-14 shrink-0 text-xs"
+        min={5}
+        max={100}
       />
+      <span className="text-muted-foreground shrink-0 text-[10px]">%</span>
       {isNumeric && (
         <label
           className="flex shrink-0 cursor-pointer items-center gap-1 text-[10px]"
diff --git a/frontend/lib/registry/components/split-panel-layout2/ColumnConfigModal.tsx b/frontend/lib/registry/components/split-panel-layout2/ColumnConfigModal.tsx
index ae6c4093..145542a1 100644
--- a/frontend/lib/registry/components/split-panel-layout2/ColumnConfigModal.tsx
+++ b/frontend/lib/registry/components/split-panel-layout2/ColumnConfigModal.tsx
@@ -607,18 +607,20 @@ export const ColumnConfigModal: React.FC<ColumnConfigModalProps> = ({
                 </div>
 
                 <div>
-                  <Label className="text-xs">컬럼 너비 (px)</Label>
+                  <Label className="text-xs">컬럼 너비 (%)</Label>
                   <Input
                     type="number"
-                    value={editingColumn.width || ""}
+                    value={editingColumn.width && editingColumn.width <= 100 ? editingColumn.width : ""}
                     onChange={(e) =>
                       setEditingColumn({
                         ...editingColumn,
-                        width: e.target.value ? parseInt(e.target.value) : undefined,
+                        width: e.target.value ? Math.min(100, Math.max(5, parseInt(e.target.value) || 20)) : undefined,
                       })
                     }
                     placeholder="자동"
                     className="mt-1 h-9"
+                    min={5}
+                    max={100}
                   />
                 </div>
               </div>
diff --git a/frontend/lib/registry/components/split-panel-layout2/SplitPanelLayout2Component.tsx b/frontend/lib/registry/components/split-panel-layout2/SplitPanelLayout2Component.tsx
index f5d5666b..a36836a6 100644
--- a/frontend/lib/registry/components/split-panel-layout2/SplitPanelLayout2Component.tsx
+++ b/frontend/lib/registry/components/split-panel-layout2/SplitPanelLayout2Component.tsx
@@ -1751,7 +1751,7 @@ export const SplitPanelLayout2Component: React.FC<SplitPanelLayout2ComponentProp
           <TableHeader>
             <TableRow>
               {displayColumns.map((col, idx) => (
-                <TableHead key={idx} style={{ width: col.width ? `${col.width}px` : "auto" }}>
+                <TableHead key={idx} style={{ width: col.width && col.width <= 100 ? `${col.width}%` : "auto" }}>
                   {col.label || col.name}
                 </TableHead>
               ))}
@@ -1952,7 +1952,7 @@ export const SplitPanelLayout2Component: React.FC<SplitPanelLayout2ComponentProp
                 </TableHead>
               )}
               {displayColumns.map((col, idx) => (
-                <TableHead key={idx} style={{ width: col.width ? `${col.width}px` : "auto" }}>
+                <TableHead key={idx} style={{ width: col.width && col.width <= 100 ? `${col.width}%` : "auto" }}>
                   {col.label || col.name}
                 </TableHead>
               ))}
diff --git a/frontend/lib/registry/components/v2-split-panel-layout/SplitPanelLayoutComponent.tsx b/frontend/lib/registry/components/v2-split-panel-layout/SplitPanelLayoutComponent.tsx
index ab46f87f..9ed4c81f 100644
--- a/frontend/lib/registry/components/v2-split-panel-layout/SplitPanelLayoutComponent.tsx
+++ b/frontend/lib/registry/components/v2-split-panel-layout/SplitPanelLayoutComponent.tsx
@@ -3543,6 +3543,12 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
                               format: undefined, // 🆕 기본값
                             }));
 
+                    // 컬럼 너비 합계 계산 (작업 컬럼 제외, 100% 초과 시 스크롤)
+                    const leftTotalColWidth = columnsToShow.reduce((sum, col) => {
+                      const w = col.width && col.width <= 100 ? col.width : 0;
+                      return sum + w;
+                    }, 0);
+
                     // 🔧 그룹화된 데이터 렌더링
                     const hasGroupedLeftActions = !isDesignMode && (
                       (componentConfig.leftPanel?.showEdit !== false) ||
@@ -3556,7 +3562,7 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
                               <div className="bg-muted px-3 py-2 text-sm font-semibold">
                                 {group.groupKey} ({group.count}개)
                               </div>
-                              <table className="min-w-full divide-y divide-border">
+                              <table className="divide-y divide-border table-fixed" style={{ width: leftTotalColWidth > 100 ? `${leftTotalColWidth}%` : '100%' }}>
                                 <thead className="bg-muted">
                                   <tr>
                                     {columnsToShow.map((col, idx) => (
@@ -3564,8 +3570,7 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
                                         key={idx}
                                         className="px-3 py-2 text-left text-xs font-medium tracking-wider text-muted-foreground uppercase whitespace-nowrap"
                                         style={{
-                                          width: col.width ? `${col.width}px` : "auto",
-                                          minWidth: "80px",
+                                          width: col.width && col.width <= 100 ? `${col.width}%` : "auto",
                                           textAlign: col.align || "left",
                                         }}
                                       >
@@ -3654,7 +3659,7 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
                     );
                     return (
                       <div className="overflow-auto">
-                        <table className="min-w-full divide-y divide-border">
+                        <table className="divide-y divide-border table-fixed" style={{ width: leftTotalColWidth > 100 ? `${leftTotalColWidth}%` : '100%' }}>
                           <thead className="sticky top-0 z-10 bg-muted">
                             <tr>
                               {columnsToShow.map((col, idx) => (
@@ -3662,8 +3667,7 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
                                   key={idx}
                                   className="px-3 py-2 text-left text-xs font-medium tracking-wider text-muted-foreground uppercase whitespace-nowrap"
                                   style={{
-                                    width: col.width ? `${col.width}px` : "auto",
-                                    minWidth: "80px",
+                                    width: col.width && col.width <= 100 ? `${col.width}%` : "auto",
                                     textAlign: col.align || "left",
                                   }}
                                 >
@@ -4659,11 +4663,16 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
                         }));
                     }
 
-                    const tableMinWidth = columnsToShow.reduce((sum, col) => sum + (col.width || 100), 0) + 80;
+                    // 컬럼 너비 합계 계산 (작업 컬럼 제외, 100% 초과 시 스크롤)
+                    const rightTotalColWidth = columnsToShow.reduce((sum, col) => {
+                      const w = col.width && col.width <= 100 ? col.width : 0;
+                      return sum + w;
+                    }, 0);
+
                     return (
                       <div className="flex h-full w-full flex-col">
                         <div className="min-h-0 flex-1 overflow-auto">
-                          <table style={{ minWidth: `${tableMinWidth}px` }}>
+                          <table className="table-fixed" style={{ width: rightTotalColWidth > 100 ? `${rightTotalColWidth}%` : '100%' }}>
                             <thead className="sticky top-0 z-10">
                               <tr className="border-b-2 border-border/60">
                                 {columnsToShow.map((col, idx) => (
@@ -4671,8 +4680,7 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
                                     key={idx}
                                     className="text-muted-foreground px-3 py-2 text-left text-xs font-semibold whitespace-nowrap"
                                     style={{
-                                      width: col.width ? `${col.width}px` : "auto",
-                                      minWidth: "80px",
+                                      width: col.width && col.width <= 100 ? `${col.width}%` : "auto",
                                       textAlign: col.align || "left",
                                     }}
                                   >
@@ -4683,7 +4691,7 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
                                 {!isDesignMode &&
                                   ((componentConfig.rightPanel?.editButton?.enabled ?? true) ||
                                     (componentConfig.rightPanel?.deleteButton?.enabled ?? true)) && (
-                                    <th className="text-muted-foreground px-3 py-2 text-right text-xs font-semibold">
+                                    <th className="text-muted-foreground px-3 py-2 text-right text-xs font-semibold" style={{ width: '80px' }}>
                                       작업
                                     </th>
                                   )}
@@ -4762,7 +4770,7 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
                   {
                     // 표시 컬럼 결정
                     const rightColumns = componentConfig.rightPanel?.columns;
-                    let columnsToDisplay: { name: string; label: string; format?: string; bold?: boolean }[] = [];
+                    let columnsToDisplay: { name: string; label: string; format?: string; bold?: boolean; width?: number }[] = [];
 
                     if (rightColumns && rightColumns.length > 0) {
                       // showInSummary가 false가 아닌 것만 메인 테이블에 표시
@@ -4773,6 +4781,7 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
                           label: rightColumnLabels[col.name] || col.label || col.name,
                           format: col.format,
                           bold: col.bold,
+                          width: col.width,
                         }));
                     } else if (filteredData.length > 0) {
                       columnsToDisplay = Object.keys(filteredData[0])
@@ -4784,24 +4793,33 @@ export const SplitPanelLayoutComponent: React.FC<SplitPanelLayoutComponentProps>
                         }));
                     }
 
+                    // 컬럼 너비 합계 계산 (작업 컬럼 제외, 100% 초과 시 스크롤)
+                    const displayTotalColWidth = columnsToDisplay.reduce((sum, col) => {
+                      const w = col.width && col.width <= 100 ? col.width : 0;
+                      return sum + w;
+                    }, 0);
+
                     const hasEditButton = !isDesignMode && (componentConfig.rightPanel?.editButton?.enabled ?? true);
                     const hasDeleteButton = !isDesignMode && (componentConfig.rightPanel?.deleteButton?.enabled ?? true);
                     const hasActions = hasEditButton || hasDeleteButton;
 
-                    const tableMinW2 = columnsToDisplay.reduce((sum, col) => sum + (col.width || 100), 0) + 80;
                     return filteredData.length > 0 ? (
                       <div className="flex h-full w-full flex-col">
                         <div className="min-h-0 flex-1 overflow-auto">
-                          <table className="text-sm" style={{ minWidth: `${tableMinW2}px` }}>
+                          <table className="table-fixed text-sm" style={{ width: displayTotalColWidth > 100 ? `${displayTotalColWidth}%` : '100%' }}>
                             <thead className="sticky top-0 z-10 bg-background">
                               <tr className="border-b-2 border-border/60">
                                 {columnsToDisplay.map((col) => (
-                                  <th key={col.name} className="text-muted-foreground px-3 py-2 text-left text-xs font-semibold">
+                                  <th
+                                    key={col.name}
+                                    className="text-muted-foreground px-3 py-2 text-left text-xs font-semibold whitespace-nowrap"
+                                    style={{ width: col.width && col.width <= 100 ? `${col.width}%` : "auto" }}
+                                  >
                                     {col.label}
                                   </th>
                                 ))}
                                 {hasActions && (
-                                  <th className="text-muted-foreground px-3 py-2 text-right text-xs font-semibold">작업</th>
+                                  <th className="text-muted-foreground px-3 py-2 text-right text-xs font-semibold" style={{ width: '80px' }}>작업</th>
                                 )}
                               </tr>
                             </thead>
diff --git a/frontend/lib/registry/components/v2-split-panel-layout/SplitPanelLayoutConfigPanel.tsx b/frontend/lib/registry/components/v2-split-panel-layout/SplitPanelLayoutConfigPanel.tsx
index afe94b12..e2895037 100644
--- a/frontend/lib/registry/components/v2-split-panel-layout/SplitPanelLayoutConfigPanel.tsx
+++ b/frontend/lib/registry/components/v2-split-panel-layout/SplitPanelLayoutConfigPanel.tsx
@@ -174,10 +174,13 @@ function SortableColumnRow({
       />
       <Input
         value={col.width || ""}
-        onChange={(e) => onWidthChange(parseInt(e.target.value) || 100)}
-        placeholder="너비"
+        onChange={(e) => onWidthChange(parseInt(e.target.value) || 20)}
+        placeholder="20"
         className="h-6 w-14 shrink-0 text-xs"
+        min={5}
+        max={100}
       />
+      <span className="text-muted-foreground shrink-0 text-[10px]">%</span>
       {isNumeric && (
         <>
           <label className="flex shrink-0 cursor-pointer items-center gap-1 text-[10px]" title="천 단위 구분자 (,)">
@@ -888,7 +891,7 @@ const AdditionalTabConfigPanel: React.FC<AdditionalTabConfigPanelProps> = ({
                             updateTab({
                               columns: [
                                 ...selectedColumns,
-                                { name: column.columnName, label: column.columnLabel || column.columnName, width: 100 },
+                                { name: column.columnName, label: column.columnLabel || column.columnName, width: 20 },
                               ],
                             });
                           }}
@@ -1058,7 +1061,7 @@ const AdditionalTabConfigPanel: React.FC<AdditionalTabConfigPanelProps> = ({
                                           {
                                             name: matchingJoinColumn.joinAlias,
                                             label: matchingJoinColumn.suggestedLabel || matchingJoinColumn.columnLabel,
-                                            width: 100,
+                                            width: 20,
                                             isEntityJoin: true,
                                             joinInfo: {
                                               sourceTable: tab.tableName!,
@@ -2396,7 +2399,7 @@ export const SplitPanelLayoutConfigPanel: React.FC<SplitPanelLayoutConfigPanelPr
                                         {
                                           name: column.columnName,
                                           label: column.columnLabel || column.columnName,
-                                          width: 100,
+                                          width: 20,
                                         },
                                       ],
                                     });
@@ -2466,7 +2469,7 @@ export const SplitPanelLayoutConfigPanel: React.FC<SplitPanelLayoutConfigPanelPr
                                                     label:
                                                       matchingJoinColumn.suggestedLabel ||
                                                       matchingJoinColumn.columnLabel,
-                                                    width: 100,
+                                                    width: 20,
                                                     isEntityJoin: true,
                                                     joinInfo: {
                                                       sourceTable: leftTable!,
@@ -3074,7 +3077,7 @@ export const SplitPanelLayoutConfigPanel: React.FC<SplitPanelLayoutConfigPanelPr
                                       {
                                         name: column.columnName,
                                         label: column.columnLabel || column.columnName,
-                                        width: 100,
+                                        width: 20,
                                       },
                                     ],
                                   });
@@ -3141,7 +3144,7 @@ export const SplitPanelLayoutConfigPanel: React.FC<SplitPanelLayoutConfigPanelPr
                                                   name: matchingJoinColumn.joinAlias,
                                                   label:
                                                     matchingJoinColumn.suggestedLabel || matchingJoinColumn.columnLabel,
-                                                  width: 100,
+                                                  width: 20,
                                                   isEntityJoin: true,
                                                   joinInfo: {
                                                     sourceTable: rightTable!,
diff --git a/frontend/lib/registry/components/v2-split-panel-layout/config-panels/LeftPanelConfigTab.tsx b/frontend/lib/registry/components/v2-split-panel-layout/config-panels/LeftPanelConfigTab.tsx
index 5631e607..289eb9bf 100644
--- a/frontend/lib/registry/components/v2-split-panel-layout/config-panels/LeftPanelConfigTab.tsx
+++ b/frontend/lib/registry/components/v2-split-panel-layout/config-panels/LeftPanelConfigTab.tsx
@@ -321,8 +321,10 @@ export const LeftPanelConfigTab: React.FC<LeftPanelConfigTabProps> = ({
                                     updateLeftPanel({ columns: newColumns });
                                   }}
                                   onRemove={() => updateLeftPanel({ columns: selectedColumns.filter((_, i) => i !== index) })}
+                                  widthUnit="%"
                                 />
                               );
+
                             })}
                           </div>
                         </SortableContext>
@@ -341,7 +343,7 @@ export const LeftPanelConfigTab: React.FC<LeftPanelConfigTabProps> = ({
                           key={column.columnName}
                           className="hover:bg-muted/50 flex cursor-pointer items-center gap-2 rounded px-2 py-1.5"
                           onClick={() => {
-                            updateLeftPanel({ columns: [...selectedColumns, { name: column.columnName, label: column.columnLabel || column.columnName, width: 100 }] });
+                            updateLeftPanel({ columns: [...selectedColumns, { name: column.columnName, label: column.columnLabel || column.columnName, width: 20 }] });
                           }}
                         >
                           <Checkbox checked={false} className="pointer-events-none h-3.5 w-3.5 shrink-0" />
@@ -394,7 +396,7 @@ export const LeftPanelConfigTab: React.FC<LeftPanelConfigTabProps> = ({
                                         columns: [...selectedColumns, {
                                           name: matchingJoinColumn.joinAlias,
                                           label: matchingJoinColumn.suggestedLabel || matchingJoinColumn.columnLabel,
-                                          width: 100,
+                                          width: 20,
                                           isEntityJoin: true,
                                           joinInfo: {
                                             sourceTable: leftTable!,
diff --git a/frontend/lib/registry/components/v2-split-panel-layout/config-panels/RightPanelConfigTab.tsx b/frontend/lib/registry/components/v2-split-panel-layout/config-panels/RightPanelConfigTab.tsx
index 412c3500..417e1f97 100644
--- a/frontend/lib/registry/components/v2-split-panel-layout/config-panels/RightPanelConfigTab.tsx
+++ b/frontend/lib/registry/components/v2-split-panel-layout/config-panels/RightPanelConfigTab.tsx
@@ -321,6 +321,7 @@ export const RightPanelConfigTab: React.FC<RightPanelConfigTabProps> = ({
                                     newColumns[index] = { ...newColumns[index], showInDetail: checked };
                                     updateRightPanel({ columns: newColumns });
                                   }}
+                                  widthUnit="%"
                                 />
                               );
                             })}
@@ -341,7 +342,7 @@ export const RightPanelConfigTab: React.FC<RightPanelConfigTabProps> = ({
                           key={column.columnName}
                           className="hover:bg-muted/50 flex cursor-pointer items-center gap-2 rounded px-2 py-1.5"
                           onClick={() => {
-                            updateRightPanel({ columns: [...selectedColumns, { name: column.columnName, label: column.columnLabel || column.columnName, width: 100 }] });
+                            updateRightPanel({ columns: [...selectedColumns, { name: column.columnName, label: column.columnLabel || column.columnName, width: 20 }] });
                           }}
                         >
                           <Checkbox checked={false} className="pointer-events-none h-3.5 w-3.5 shrink-0" />
@@ -394,7 +395,7 @@ export const RightPanelConfigTab: React.FC<RightPanelConfigTabProps> = ({
                                         columns: [...selectedColumns, {
                                           name: matchingJoinColumn.joinAlias,
                                           label: matchingJoinColumn.suggestedLabel || matchingJoinColumn.columnLabel,
-                                          width: 100,
+                                          width: 20,
                                           isEntityJoin: true,
                                           joinInfo: {
                                             sourceTable: rightTable!,
diff --git a/frontend/lib/registry/components/v2-split-panel-layout/config-panels/SharedComponents.tsx b/frontend/lib/registry/components/v2-split-panel-layout/config-panels/SharedComponents.tsx
index 78b079d7..8d2ace51 100644
--- a/frontend/lib/registry/components/v2-split-panel-layout/config-panels/SharedComponents.tsx
+++ b/frontend/lib/registry/components/v2-split-panel-layout/config-panels/SharedComponents.tsx
@@ -13,7 +13,7 @@ import { Check, ChevronsUpDown, GripVertical, Link2, X } from "lucide-react";
 import { cn } from "@/lib/utils";
 
 export function SortableColumnRow({
-  id, col, index, isNumeric, isEntityJoin, onLabelChange, onWidthChange, onFormatChange, onSuffixChange, onRemove, onShowInSummaryChange, onShowInDetailChange,
+  id, col, index, isNumeric, isEntityJoin, onLabelChange, onWidthChange, onFormatChange, onSuffixChange, onRemove, onShowInSummaryChange, onShowInDetailChange, widthUnit,
 }: {
   id: string;
   col: { name: string; label: string; width?: number; format?: any; showInSummary?: boolean; showInDetail?: boolean };
@@ -27,6 +27,7 @@ export function SortableColumnRow({
   onRemove: () => void;
   onShowInSummaryChange?: (checked: boolean) => void;
   onShowInDetailChange?: (checked: boolean) => void;
+  widthUnit?: string;
 }) {
   const { attributes, listeners, setNodeRef, transform, transition, isDragging } = useSortable({ id });
   const style = { transform: CSS.Transform.toString(transform), transition };
@@ -57,10 +58,13 @@ export function SortableColumnRow({
       />
       <Input
         value={col.width || ""}
-        onChange={(e) => onWidthChange(parseInt(e.target.value) || 100)}
-        placeholder="너비"
+        onChange={(e) => onWidthChange(parseInt(e.target.value) || (widthUnit === "%" ? 20 : 100))}
+        placeholder={widthUnit === "%" ? "20" : "너비"}
         className="h-6 w-14 shrink-0 text-xs"
+        min={widthUnit === "%" ? 5 : undefined}
+        max={widthUnit === "%" ? 100 : undefined}
       />
+      <span className="text-muted-foreground shrink-0 text-[10px]">{widthUnit || "px"}</span>
       {isNumeric && (
         <>
           <label className="flex shrink-0 cursor-pointer items-center gap-1 text-[10px]" title="천 단위 구분자 (,)">