diff --git a/app/src/modules/builder/Decal/decalInstance.tsx b/app/src/modules/builder/Decal/decalInstance.tsx
new file mode 100644
index 0000000..6ed0490
--- /dev/null
+++ b/app/src/modules/builder/Decal/decalInstance.tsx
@@ -0,0 +1,48 @@
+import * as THREE from 'three';
+import { Decal } from '@react-three/drei'
+import { useLoader } from '@react-three/fiber';
+import { useToggleView } from '../../../store/builder/store';
+import { useBuilderStore } from '../../../store/builder/useBuilderStore';
+
+import defaultMaterial from '../../../assets/textures/floor/wall-tex.png';
+import useModuleStore from '../../../store/useModuleStore';
+
+function DecalInstance({ visible = true, decal }: { visible?: boolean, decal: Decal }) {
+    const { setSelectedWall, selectedDecal, setSelectedDecal } = useBuilderStore();
+    const { togglView } = useToggleView();
+    const { activeModule } = useModuleStore();
+    const material = useLoader(THREE.TextureLoader, defaultMaterial);
+
+    return (
+        <Decal
+            // debug
+            visible={visible}
+            position={decal.decalPosition}
+            rotation={[0, 0, decal.decalRotation]}
+            scale={[decal.decalScale, decal.decalScale, 0.01]}
+            userData={decal}
+            onClick={(e) => {
+                if (visible && !togglView && activeModule === 'builder') {
+                    if (e.object.userData.decalUuid) {
+                        setSelectedDecal(e.object);
+                        setSelectedWall(null);
+                    }
+                }
+            }}
+            onPointerMissed={() => {
+                if (selectedDecal && selectedDecal.userData.decalUuid === decal.decalUuid) {
+                    setSelectedDecal(null);
+                }
+            }}
+        >
+            <meshBasicMaterial
+                map={material}
+                side={THREE.DoubleSide}
+                polygonOffset
+                polygonOffsetFactor={-1}
+            />
+        </Decal>
+    )
+}
+
+export default DecalInstance
\ No newline at end of file
diff --git a/app/src/modules/builder/wall/Instances/instance/wall.tsx b/app/src/modules/builder/wall/Instances/instance/wall.tsx
index 4ada970..037816b 100644
--- a/app/src/modules/builder/wall/Instances/instance/wall.tsx
+++ b/app/src/modules/builder/wall/Instances/instance/wall.tsx
@@ -13,12 +13,13 @@ import { useWallClassification } from './helpers/useWallClassification';
 import { useToggleView, useWallVisibility } from '../../../../../store/builder/store';
 import { useBuilderStore } from '../../../../../store/builder/useBuilderStore';
 import * as Constants from '../../../../../types/world/worldConstants';
+import DecalInstance from '../../../Decal/decalInstance';
 
 function Wall({ wall }: { readonly wall: Wall }) {
     const { wallStore } = useSceneContext();
-    const { walls } = wallStore();
+    const { walls, addDecal } = wallStore();
+    const { selectedWall, setSelectedWall, setSelectedDecal } = useBuilderStore();
     const { togglView } = useToggleView();
-    const { setSelectedWall } = useBuilderStore();
     const { activeModule } = useModuleStore();
     const { camera } = useThree();
     const { wallVisibility } = useWallVisibility();
@@ -112,25 +113,6 @@ function Wall({ wall }: { readonly wall: Wall }) {
                 {materials.map((material, index) => (
                     <primitive key={index} visible={visible} object={material} attach={`material-${index}`} />
                 ))}
-
-                {wall.decals.map((decal) => {
-                    return (
-                        <Decal
-                            // debug
-                            position={[decal.decalPosition[0], decal.decalPosition[1], wall.wallThickness / 2]}
-                            rotation={[0, 0, decal.decalRotation]}
-                            scale={[decal.decalScale, decal.decalScale, 0.001]}
-                            userData={decal}
-                        >
-                            <meshBasicMaterial
-                                map={material1WallTexture}
-                                side={THREE.DoubleSide}
-                                polygonOffset
-                                polygonOffsetFactor={-1}
-                            />
-                        </Decal>
-                    )
-                })}
             </Base>
             <mesh
                 castShadow
@@ -138,15 +120,39 @@ function Wall({ wall }: { readonly wall: Wall }) {
                 position={[centerX, centerY, centerZ]}
                 rotation={[0, -angle, 0]}
                 userData={wall}
-                name={`WallRaycastReference_${wall.wallUuid}`}
+                name={`WallReference_${wall.wallUuid}`}
                 onClick={(e) => {
                     if (visible && !togglView && activeModule === 'builder') {
-                        setSelectedWall(e.object)
+                        if (e.object.userData.wallUuid) {
+                            setSelectedWall(e.object);
+                            setSelectedDecal(null);
+
+                            if (wall.decals.length > 0) return;
+                            const decal: Decal = {
+                                decalUuid: THREE.MathUtils.generateUUID(),
+                                decalName: 'Decal',
+                                decalId: 'Default Decal',
+                                decalPosition: [0, 0, wall.wallThickness / 2 + 0.001],
+                                decalRotation: 0,
+                                decalScale: 1,
+                                decalType: { type: 'Wall', wallUuid: wall.wallUuid }
+                            }
+                            addDecal(wall.wallUuid, decal);
+
+                        }
+                    }
+                }}
+                onPointerMissed={() => {
+                    if (selectedWall && selectedWall.userData.wallUuid === wall.wallUuid) {
+                        setSelectedWall(null);
                     }
                 }}
-                onPointerMissed={() => { setSelectedWall(null) }}
             >
                 <MeshDiscardMaterial />
+
+                {wall.decals.map((decal) => (
+                    <DecalInstance visible={visible} key={decal.decalUuid} decal={decal} />
+                ))}
             </mesh>
         </mesh>
     );
diff --git a/app/src/modules/builder/wall/Instances/wallInstances.tsx b/app/src/modules/builder/wall/Instances/wallInstances.tsx
index b22d0e6..4d5da1e 100644
--- a/app/src/modules/builder/wall/Instances/wallInstances.tsx
+++ b/app/src/modules/builder/wall/Instances/wallInstances.tsx
@@ -42,7 +42,7 @@ function WallInstances() {
 
     return (
         <>
-            {!toggleView && (
+            {!toggleView && walls.length > 1 && (
                 <>
                     <mesh name='Walls-Group'>
                         <Geometry useGroups>
diff --git a/app/src/modules/builder/wall/wallGroup.tsx b/app/src/modules/builder/wall/wallGroup.tsx
index 07ef700..aae36b9 100644
--- a/app/src/modules/builder/wall/wallGroup.tsx
+++ b/app/src/modules/builder/wall/wallGroup.tsx
@@ -7,12 +7,13 @@ import useModuleStore from '../../../store/useModuleStore';
 
 function WallGroup() {
     const { togglView } = useToggleView();
-    const { setSelectedWall } = useBuilderStore();
+    const { setSelectedWall, setSelectedDecal } = useBuilderStore();
     const { activeModule } = useModuleStore();
 
     useEffect(() => {
         if (togglView || activeModule !== 'builder') {
             setSelectedWall(null);
+            setSelectedDecal(null);
         }
     }, [togglView, activeModule])
 
diff --git a/app/src/modules/scene/postProcessing/postProcessing.tsx b/app/src/modules/scene/postProcessing/postProcessing.tsx
index 1b91386..25d0e0c 100644
--- a/app/src/modules/scene/postProcessing/postProcessing.tsx
+++ b/app/src/modules/scene/postProcessing/postProcessing.tsx
@@ -15,7 +15,7 @@ export default function PostProcessing() {
     const { selectedWallItem } = useSelectedWallItem();
     const { selectedFloorItem } = useSelectedFloorItem();
     const { selectedEventSphere } = useSelectedEventSphere();
-    const { selectedAisle, selectedWall } = useBuilderStore();
+    const { selectedAisle, selectedWall, selectedDecal } = useBuilderStore();
 
     function flattenChildren(children: any[]) {
         const allChildren: any[] = [];
@@ -85,6 +85,21 @@ export default function PostProcessing() {
                     xRay={true}
                 />
             )}
+            {selectedDecal && (
+                <Outline
+                    selection={selectedDecal}
+                    selectionLayer={10}
+                    width={2000}
+                    blendFunction={BlendFunction.ALPHA}
+                    edgeStrength={5}
+                    resolutionScale={2}
+                    pulseSpeed={0}
+                    visibleEdgeColor={CONSTANTS.outlineConfig.assetSelectColor}
+                    hiddenEdgeColor={CONSTANTS.outlineConfig.assetSelectColor}
+                    blur={true}
+                    xRay={true}
+                />
+            )}
             {deletableFloorItem && (
                 <Outline
                     selection={flattenChildren(deletableFloorItem.children)}
diff --git a/app/src/store/builder/useBuilderStore.ts b/app/src/store/builder/useBuilderStore.ts
index f59ab54..7803df9 100644
--- a/app/src/store/builder/useBuilderStore.ts
+++ b/app/src/store/builder/useBuilderStore.ts
@@ -16,6 +16,9 @@ interface BuilderState {
     outsideMaterial: string;
     insideMaterial: string;
 
+    // Decal Settings
+    selectedDecal: Object3D | null;
+
     // Aisle General
     selectedAisle: Object3D | null;
     aisleType: AisleTypes;
@@ -41,6 +44,9 @@ interface BuilderState {
     setWallHeight: (height: number) => void;
     setWallMaterial: (material: string, side: 'inside' | 'outside') => void;
 
+    // Setters - Decal
+    setSelectedDecal: (decal: Object3D | null) => void;
+
     // Setters - Aisle General
     setSelectedAisle: (aisle: Object3D | null) => void;
     setAisleType: (type: AisleTypes) => void;
@@ -75,6 +81,8 @@ export const useBuilderStore = create<BuilderState>()(
         outsideMaterial: 'Default Material',
         insideMaterial: 'Material 1',
 
+        selectedDecal: null,
+
         selectedAisle: null,
         aisleType: 'solid-aisle',
         aisleWidth: 0.1,
@@ -139,6 +147,14 @@ export const useBuilderStore = create<BuilderState>()(
             });
         },
 
+        // === Setters: Decal ===
+
+        setSelectedDecal: (decal: Object3D | null) => {
+            set((state) => {
+                state.selectedDecal = decal;
+            })
+        },
+
         // === Setters: Aisle General ===
 
         setSelectedAisle: (aisle: Object3D | null) => {
diff --git a/app/src/types/builderTypes.d.ts b/app/src/types/builderTypes.d.ts
index decde1d..17349d7 100644
--- a/app/src/types/builderTypes.d.ts
+++ b/app/src/types/builderTypes.d.ts
@@ -80,11 +80,22 @@ interface Decal {
     decalUuid: string;
     decalName: string;
     decalId: string;
+    decalType: WallDecal | FloorDecal;
     decalPosition: [number, number, number];
     decalRotation: number;
     decalScale: number;
 }
 
+interface WallDecal {
+    type: 'Wall';
+    wallUuid: string;
+}
+
+interface FloorDecal {
+    type: 'Floor';
+    floorUuid: string;
+}
+
 interface Wall {
     wallUuid: string;
     points: [Point, Point];