Lu Ban ruler is practically applied in life, in measuring and in many fields such as the dimensions of the main door, side door, ceiling, altar size, kitchen pedestal, etc...
Lu Ban ruler was built by the ancestor of carpentry and built, Lu Ban was a good carpenter of the State of Lu (now Shandong province) during the Spring and Autumn period (770-460 BC). His name is Ban (or), his last name is Cong Thau. Lu Ban means "Mr Ban from the country of Lu".

Lu Ban Ruler application is made to meet the needs of people, architects, feng shui teachers, builders ... to serve and have a better life.

Function:

- Lu Ban ruler 52.2cm used to measure the clear space (doors, windows ...)
- Lu Ban ruler 42.9cm (Duong Trach) used in building blocks (kitchen, pedestal, steps...)
- Lu Ban Ruler 38.8cm (Sound part) used in Furniture (altar, cabinet...)

- Explain the meaning of the signs

Wishing you all good health and prosperity!