The rice on the door, 1540 is the word "official", which is auspicious, but less than 4 mm is beyond the scope of the word "official". I believe that the owner misused the Ding Lan ruler, which was used to make furniture, not to open doors, and the 1540 of the Ding Lan ruler was right in the middle of the "wealth" position. It is suggested that the width of the door should be within the frame, that is, 1528, which is the middle position of the word "official", with an error of plus or minus one centimeter.
2 176, the correct height should be 2 17 1, which is the "wealth" position of Liuhe treasure house in the door rice.