diff --git a/CLAUDE.md b/CLAUDE.md
index a0ebe69..9118f17 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -15,7 +15,7 @@ Layout and editing UI. No optimizer yet.
 
 **Editing (Phase 2)**
 - Click an item to select it (blue outline); click empty floor to deselect (Escape/Done too). Dragging still moves. Selecting opens the item panel in the sidebar (replaces tiles / type menu).
-- Item panel: Rotate 90 button + free angle wheel (0-359, wraps); Lock/Unlock; Delete (also Delete/Backspace key, ignored while typing in an input); "Seats at this table" wheel for tables (per-item override, "Reset to default" link when overridden); Size wheels (0.3-6 m, 0.1 steps; screens show only Length).
+- Item panel (chairs have no rotation controls; every other type does): Rotate 90 button + free angle wheel (0-359, wraps); Lock/Unlock; Delete (also Delete/Backspace key, ignored while typing in an input); "Seats at this table" wheel for tables (per-item override, "Reset to default" link when overridden); Size wheels (0.3-6 m, 0.1 steps; screens show only Length).
 - Rotation turns around the item's center and collision/wall clamping use the rotated bounding box (`boundsOf`). A rotate/size change is pushed back inside the walls, then rejected if it would overlap (`tryUpdate`).
 - Locked items can't be dragged or rotated and show a padlock. (Size, seats and delete are still allowed on locked items.)
 - Delete frees inventory automatically (remaining is derived from `items`).
@@ -54,6 +54,7 @@ interface FurnitureTypeConfig {
   id: FurnitureType; name: string; shape: Shape;
   defaultWidth: number; defaultHeight: number; // meters
   isTable: boolean;
+  rotatable: boolean;    // chairs: false (no rotation controls)
   available: number;     // inventory count
   seatsPerUnit?: number; // type-level seats
 }
diff --git a/src/App.tsx b/src/App.tsx
index 6cf3f7c..554f1b6 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -162,6 +162,7 @@ export default function App() {
         defaultWidth: d.width,
         defaultHeight: d.height,
         isTable: d.isTable,
+        rotatable: true,
         available: d.available,
         seatsPerUnit: d.seats,
       },
diff --git a/src/components/ItemPanel.tsx b/src/components/ItemPanel.tsx
index 76133ed..7705f11 100644
--- a/src/components/ItemPanel.tsx
+++ b/src/components/ItemPanel.tsx
@@ -46,26 +46,28 @@ export function ItemPanel({ item, config, onPatch, onDelete, onClose }: Props) {
         {item.locked ? " 🔒" : ""}
       </div>
 
-      <div>
-        <div style={label}>Rotation</div>
-        <Wheel
-          value={item.rotation}
-          min={0}
-          max={359}
-          wrap
-          rows={3}
-          disabled={item.locked}
-          format={(v) => `${v}°`}
-          onChange={(v) => patch({ rotation: v })}
-        />
-        <button
-          style={{ ...btn, marginTop: 8, width: "100%", opacity: item.locked ? 0.45 : 1 }}
-          disabled={item.locked}
-          onClick={() => patch({ rotation: (item.rotation + 90) % 360 })}
-        >
-          Rotate 90°
-        </button>
-      </div>
+      {config.rotatable && (
+        <div>
+          <div style={label}>Rotation</div>
+          <Wheel
+            value={item.rotation}
+            min={0}
+            max={359}
+            wrap
+            rows={3}
+            disabled={item.locked}
+            format={(v) => `${v}°`}
+            onChange={(v) => patch({ rotation: v })}
+          />
+          <button
+            style={{ ...btn, marginTop: 8, width: "100%", opacity: item.locked ? 0.45 : 1 }}
+            disabled={item.locked}
+            onClick={() => patch({ rotation: (item.rotation + 90) % 360 })}
+          >
+            Rotate 90°
+          </button>
+        </div>
+      )}
 
       {config.isTable && (
         <div>
diff --git a/src/store.ts b/src/store.ts
index 9974fb1..effac36 100644
--- a/src/store.ts
+++ b/src/store.ts
@@ -19,9 +19,9 @@ export type Action =
   | { kind: "addConfig"; config: FurnitureTypeConfig };
 
 const BUILT_IN: FurnitureTypeConfig[] = [
-  { id: "chair", name: "Chair", shape: "chair", defaultWidth: 0.5, defaultHeight: 0.5, isTable: false, available: 20 },
-  { id: "table", name: "Table", shape: "table", defaultWidth: 1.8, defaultHeight: 0.8, isTable: true, available: 6, seatsPerUnit: 8 },
-  { id: "screen", name: "Screen", shape: "screen", defaultWidth: 2, defaultHeight: 0.2, isTable: false, available: 2 },
+  { id: "chair", name: "Chair", shape: "chair", defaultWidth: 0.5, defaultHeight: 0.5, isTable: false, rotatable: false, available: 20 },
+  { id: "table", name: "Table", shape: "table", defaultWidth: 1.8, defaultHeight: 0.8, isTable: true, rotatable: true, available: 6, seatsPerUnit: 8 },
+  { id: "screen", name: "Screen", shape: "screen", defaultWidth: 2, defaultHeight: 0.2, isTable: false, rotatable: true, available: 2 },
 ];
 
 export const initialState: LayoutState = {
diff --git a/src/types.ts b/src/types.ts
index 79583bf..cf1e434 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -36,6 +36,7 @@ export interface FurnitureTypeConfig {
   defaultWidth: number; // meters
   defaultHeight: number;
   isTable: boolean;
+  rotatable: boolean; // false = no rotation controls (chairs)
   available: number; // inventory count
   seatsPerUnit?: number; // type-level seats (tables, couches...)
 }