What kind of Lu Banchi do Cantonese people use?

Cantonese control Lu Banchi with 45.6 cm. The ancient book records: "Lu Banchi is one foot, four inches and four minutes, eight inches between feet, and one inch is accurate and one inch is eight minutes." "Bending ruler" is a carpenter's ruler used by ancient carpenters, and its length is the same as the building ruler promulgated by the Ministry of Industry of the imperial court in previous dynasties. In modern times, the unit of measurement was changed to centimeters, so according to the ancient records of Lu half a foot, the current unit of measurement is 45.6 centimeters. Lubanchi was written in Luban, the state of Lu in the Spring and Autumn Period and the Warring States Period. Later, the words "wealth, illness, divorce, righteousness, official, robbery, harm and foundation" were added to distinguish between good and bad, so as to measure the good and bad of houses and houses. In Guangdong, the construction of houses attaches great importance to auspicious dimensions, such as height, depth and width. Carpenters use Lu Banchi to determine the size of doors, and build houses according to the auspicious size of Lu Banchi for indoor layout.