The online ban scale application helps you choose the ideal size to build: altar, kitchen, door, window, floor height, stair step height, ... suitable for feng shui.

Of course, with just a ruler, you can't change your destiny, but by choosing a good size, if a disaster occurs, it will be reduced, and if you have a good fortune, it will be multiplied.

The application displays 3 types of popular Lu Ban rulers today with sizes of 52.2cm (through water), 42.9cm (yang ze), 38.8cm (yin part).

Designed to be extremely basic and simple for anyone to use. Install now and the rest you explain yourself!