Luban Ruler 52.2 cm: Clear Opening Measurements (doors, windows, etc.)
A length of 6.2 cm falls under the INTELLIGENCE section within the NOBLEMAN – GOOD range:
(This measurement is believed to bring prosperity, successful business opportunities, loyal relationships, and intelligent, respectful children.)
Luban Ruler 42.9 cm (Yang House): Structural Measurements (kitchen counters, platforms, steps, etc.)
A length of 6.2 cm falls under the WEALTH LOSS section within the ILLNESS – BAD range:
(Associated with financial loss, business difficulties, and unfavorable energy.)
The ILLNESS range is especially related to bathrooms and unfavorable corners of a house. Openings or dimensions falling into this section are traditionally considered unfavorable for health.
Luban Ruler 38.8 cm (Yin House): Furniture & Ancestral Items (altars, cabinets, etc.)
A length of 6.2 cm falls under the ABSOLUTE LOSS section within the HARM – BAD range:
(Considered highly inauspicious, symbolizing separation, severe loss, or misfortune.)
Guide to Using the Luban Ruler
The Luban Ruler is named after Lu Ban, the legendary master craftsman and feng shui pioneer from China’s Spring and Autumn period. In traditional Eastern geomancy, however, there are several types of measurement rulers besides the Luban Ruler, such as the Ap Bach Ruler and the Dinh Lan Ruler.
Today, the most commonly used Luban Rulers include:
- 52.2 cm ruler
- 42.9 cm ruler
- 38.8 cm ruler
Each ruler is divided into auspicious and inauspicious measurement ranges, helping users determine which dimensions are considered favorable or should be avoided according to feng shui principles.
The Luban measurement system has been developed and refined over centuries. While a ruler itself cannot change destiny, many believe that choosing harmonious dimensions may help minimize misfortune and enhance prosperity and positive energy.
Common Types of Luban Rulers
- 52.2 cm Luban Ruler
Used for measuring clear openings and empty spaces such as doors, windows, and passages. - 42.9 cm Luban Ruler
Used for measuring solid construction elements such as kitchen counters, platforms, stair steps, and built structures. - 38.8 cm Luban Ruler
Used for yin feng shui applications such as tombs, altars, ancestral cabinets, memorial tablets, and spiritual furniture.