diff --git a/B07_DesignDetail/openwebcad/src/entities/TableEntity.ts b/B07_DesignDetail/openwebcad/src/entities/TableEntity.ts
index 5662184dd..33767ed58 100644
--- a/B07_DesignDetail/openwebcad/src/entities/TableEntity.ts
+++ b/B07_DesignDetail/openwebcad/src/entities/TableEntity.ts
@@ -351,9 +351,11 @@ export class TableEntity implements Entity {
 			data.cells,
 			data.style
 		);
-		table.id = jsonEntity.id;
-		table.lineColor = jsonEntity.lineColor;
-		table.lineWidth = jsonEntity.lineWidth;
+		// 서버가 만든 표(면적산출 → 도면 · M02 41장)는 id · 선 색 · 굵기가 없을 수 있다 — 비면 새 표의
+		// 기본값(선 색 = 자동색 `#fff` · 바탕 따라 흰/검정)으로 채운다. 놓기 · [업데이트] · 다시 열기가 모두 여기를 지난다.
+		table.id = jsonEntity.id || table.id;
+		table.lineColor = jsonEntity.lineColor || table.lineColor;
+		table.lineWidth = jsonEntity.lineWidth ?? table.lineWidth;
 		table.lineDash = jsonEntity.lineDash;
 		return table;
 	}
diff --git a/B07_DesignDetail/openwebcad/src/integration/aislo-table-bridge.test.ts b/B07_DesignDetail/openwebcad/src/integration/aislo-table-bridge.test.ts
index f11cab527..741cf8246 100644
--- a/B07_DesignDetail/openwebcad/src/integration/aislo-table-bridge.test.ts
+++ b/B07_DesignDetail/openwebcad/src/integration/aislo-table-bridge.test.ts
@@ -77,6 +77,28 @@ describe('표 놓기(PLACETABLE)', () => {
 	});
 });
 
+describe('선 색 없는 표(서버 표 변환 답 · 43-6)', () => {
+	it('id · 선 색 · 굵기가 없으면 기본값(자동색 #fff · 1 · 새 id)으로 채워 놓고 저장 JSON 에도 남음', async () => {
+		const json = await table('T8').toJson();
+		if (!json) throw new Error('표 JSON 없음');
+		const { id: _id, lineColor: _color, lineWidth: _width, layerId: _layer, ...bare } = json;
+		await handleTableMessage(
+			{ type: AISLO_PLACE_TABLE_MESSAGE, entity: bare as typeof json, link: 'T8' },
+			vi.fn()
+		);
+		const pending = getPendingTable();
+		expect(pending?.lineColor).toBe('#fff');
+		expect(pending?.lineWidth).toBe(1);
+		const placed = tableAt(pending as TableEntity, new Point(0, 0), layer.id);
+		placed.lineColor = pending?.lineColor ?? '';
+		const saved = await placed.toJson();
+		expect(saved?.lineColor).toBe('#fff');
+		const back = await TableEntity.fromJson(bare as typeof json);
+		expect(back.id).toBeTruthy();
+		expect(back.lineColor).toBe('#fff');
+	});
+});
+
 describe('표 칸 갈기(update-table)', () => {
 	it('연결이 같은 표의 칸만 갈고 자리 · 크기는 그대로 · 되돌리기 한 걸음', () => {
 		const linked = table('T1');