Is plywood more expensive than particle board?

Generally yes. Plywood has higher material and process costs, so with the same configuration it is somewhat more expensive than particle board. A wardrobe example makes this clearer: basic configuration E0 particle board + PET door panel, Beijing 500–550 yuan/㎡, Baoding, Langfang, Xiong'an and Zhuozhou areas 425–467.5 yuan/㎡; mainstream configuration ENF particle board + PET door panel, Beijing 700–800 yuan/㎡, Baoding, Langfang, Xiong'an and Zhuozhou areas 595–680 yuan/㎡; upgraded configuration ENF eco board + PET door panel, Beijing 950–1,100 yuan/㎡, Baoding, Langfang, Xiong'an and Zhuozhou areas 807.5–935 yuan/㎡. The above are reference prices and do not constitute a formal quotation; the actual price must be calculated based on dimensions, design, materials, hardware, quantity and on-site conditions.