How to calculate the area of woodworking furniture except the door area?

There are generally three methods to calculate the area of customized furniture, namely, according to the projected area, the unfolded area and the conversion table. The specific methods are as follows: orthographic area calculation: orthographic area calculation refers to the length and width of the front of the cabinet, or the wall area. As for the grid, hardware and backboard inside the cabinet, there is no calculation. The main feature of this calculation method is very simple and clear, and you can basically know how much you want to spend when you buy it. Unfolded area: This calculation method completely separates the structure of wardrobe, including hardware, drawers, partitions, backboards, vertical plates, bars and so on. , and calculate the area of each board, clothes, drawers, slide rails, etc. Separate and finally add together. Approximate comparison conversion table of calculation methods: In order to influence the prices of the two calculation methods, I calculated a conversion table in block letters, that is, how much to project. This conversion table is still the price range calculated according to the design of general wardrobes and bookcases, excluding that simplicity and complexity.