diff --git a/frontend/components/admin/dashboard/widgets/yard-3d/Yard3DCanvas.tsx b/frontend/components/admin/dashboard/widgets/yard-3d/Yard3DCanvas.tsx
index d55e8ad3..29c15ca9 100644
--- a/frontend/components/admin/dashboard/widgets/yard-3d/Yard3DCanvas.tsx
+++ b/frontend/components/admin/dashboard/widgets/yard-3d/Yard3DCanvas.tsx
@@ -7,6 +7,7 @@ import * as THREE from "three";
 
 interface YardPlacement {
   id: number;
+  yard_layout_id?: number;
   material_code?: string | null;
   material_name?: string | null;
   quantity?: number | null;
@@ -26,7 +27,7 @@ interface YardPlacement {
 interface Yard3DCanvasProps {
   placements: YardPlacement[];
   selectedPlacementId: number | null;
-  onPlacementClick: (placement: YardPlacement) => void;
+  onPlacementClick: (placement: YardPlacement | null) => void;
   onPlacementDrag?: (id: number, position: { x: number; y: number; z: number }) => void;
 }
 
diff --git a/frontend/components/admin/dashboard/widgets/yard-3d/Yard3DViewer.tsx b/frontend/components/admin/dashboard/widgets/yard-3d/Yard3DViewer.tsx
index ead548f1..a4dab504 100644
--- a/frontend/components/admin/dashboard/widgets/yard-3d/Yard3DViewer.tsx
+++ b/frontend/components/admin/dashboard/widgets/yard-3d/Yard3DViewer.tsx
@@ -7,7 +7,7 @@ import { Loader2 } from "lucide-react";
 
 interface YardPlacement {
   id: number;
-  yard_layout_id: number;
+  yard_layout_id?: number;
   material_code?: string | null;
   material_name?: string | null;
   quantity?: number | null;
@@ -20,12 +20,20 @@ interface YardPlacement {
   size_z: number;
   color: string;
   data_source_type?: string | null;
-  data_source_config?: any;
-  data_binding?: any;
+  data_source_config?: Record<string, unknown> | null;
+  data_binding?: Record<string, unknown> | null;
   status?: string;
   memo?: string;
 }
 
+interface YardLayout {
+  id: number;
+  name: string;
+  description?: string;
+  created_at?: string;
+  updated_at?: string;
+}
+
 interface Yard3DViewerProps {
   layoutId: number;
 }
@@ -58,13 +66,14 @@ export default function Yard3DViewer({ layoutId }: Yard3DViewerProps) {
         // 야드 레이아웃 정보 조회
         const layoutResponse = await yardLayoutApi.getLayoutById(layoutId);
         if (layoutResponse.success) {
-          setLayoutName(layoutResponse.data.name);
+          const layout = layoutResponse.data as YardLayout;
+          setLayoutName(layout.name);
         }
 
         // 배치 데이터 조회
         const placementsResponse = await yardLayoutApi.getPlacementsByLayoutId(layoutId);
         if (placementsResponse.success) {
-          setPlacements(placementsResponse.data);
+          setPlacements(placementsResponse.data as YardPlacement[]);
         } else {
           setError("배치 데이터를 불러올 수 없습니다.");
         }
@@ -123,7 +132,7 @@ export default function Yard3DViewer({ layoutId }: Yard3DViewerProps) {
 
       {/* 야드 이름 (좌측 상단) */}
       {layoutName && (
-        <div className="absolute top-4 left-4 z-50 rounded-lg border border-gray-300 bg-white px-4 py-2 shadow-lg">
+        <div className="absolute top-4 left-4 z-49 rounded-lg border border-gray-300 bg-white px-4 py-2 shadow-lg">
           <h2 className="text-base font-bold text-gray-900">{layoutName}</h2>
         </div>
       )}
diff --git a/frontend/components/layout/MainHeader.tsx b/frontend/components/layout/MainHeader.tsx
index cfad594e..f04dcca3 100644
--- a/frontend/components/layout/MainHeader.tsx
+++ b/frontend/components/layout/MainHeader.tsx
@@ -14,7 +14,7 @@ interface MainHeaderProps {
  */
 export function MainHeader({ user, onSidebarToggle, onProfileClick, onLogout }: MainHeaderProps) {
   return (
-    <header className="bg-background/95 sticky top-0 z-50 h-14 min-h-14 w-full flex-shrink-0 border-b backdrop-blur">
+    <header className="bg-background/95 fixed top-0 z-50 h-14 min-h-14 w-full flex-shrink-0 border-b backdrop-blur">
       <div className="flex h-full w-full items-center justify-between px-6">
         {/* Left side - Side Menu + Logo */}
         <div className="flex h-8 items-center gap-2">