中堂 = The inner hall of a traditional Chinese house of the rich and powerful. It's a place where family gathers. The Outer hall is for receiving guests. It is also an official in imperial times, or in the large calligraphy hung in the outer hall. Here it means the "inner hall"

Living room

中堂：a place usually in the livingroom wall middle

Thank you, Cara Sue

中堂is not a common word in daily conversation, it exit in ancient Chinese novel. If you're an intermedia Chinese learner, I can recommond a good reading resource to you. 慢速中文 https://castbox.fm/channel/%E6%85%A2%E9%80%9F%E4%B8%AD%E6%96%87-Slow-Chinese-id2209?country=cn