Lu half a foot measures the house by steps, five feet by steps, and one step is auspicious. Use Lu Ban's drawing ruler method, each step 157 cm, and finally take the initial value.

According to the algorithm of the older generation of plasterers, one foot is equal to 350mm, and five feet is equal to1750 mm. The size is auspicious (5 feet auspicious: longevity, natural wealth, windfall and great wealth), and the size of the house-length, width and height is auspicious.

1 The length and width of the house are measured to the foreskin.

The height of the house is the distance from the ground to the top of the mountain.

The height of the door should be measured from the ground to the bottom of the door.

4 the width of the door, measure the bricks on both sides.