How should whole-house customization be done for a duplex?

For whole-house customization in a duplex, the key is making good use of the space under the stairs and the double-height areas. A shoe cabinet or storage cabinet can be placed under the stairs. The TV cabinet in a double-height living room should be calculated by projected area, priced by width × height; different layouts require different conversions, so it must be calculated according to the drawings. When measuring, confirm the wall flatness and internal/external corners, and decide the closing method first. On price, the mainstream configuration for TV cabinets is 400–800 yuan/㎡ in Beijing and 340–680 yuan/㎡ in Baoding, Langfang, Xiong'an and Zhuozhou; the mainstream configuration for shoe cabinets is 400–700 yuan/㎡ in Beijing and 340–595 yuan/㎡ in Baoding, Langfang, Xiong'an and Zhuozhou. The processing cycle is usually 15–45 days, and logistics generally deliver in 1–3 days. The above are reference prices and do not constitute a formal quotation; actual projects need further calculation based on dimensions, design, materials, hardware, quantity and site conditions.