Instructions for viewing the Lu Ban Ruler
Ruler Lu can give you Lu Ban, invented by the Patriarch of carpentry in China during the Spring and Autumn period. But in fact, in ancient oriental geography, in addition to the Lu Ban ruler (Lu Ban chain), there are also many other types of rulers used such as Dinh Lan ruler (Dinh Lan chain), Ap Bach ruler (Ap Bach chain), the Lu ban ruler itself also includes many different versions.
The Lu Ban ruler is a feng shui ruler used in construction and interior design to determine beautiful dimensions (red arcs) that bring fortune, and avoid bad dimensions (black arcs). There are 3 common types: 52.2cm (door measurement, clearance), 42.9cm (building block measurement, furniture measurement), and 38.8cm (acoustic area measurement, altar measurement).
Because there are many articles and information about Lu ban rulers of different sizes. Here we only introduce the 3 most popular rulers on the Vietnamese market today: Lu Ban size 52.2 cm; 42.9 cm and 38.8 cm.
+ Measure hollow size (clearance): Lu Ban ruler 52.2 cm
+ Measure solid dimensions: building blocks (stoves, pedestals, steps...): Lu Ban Ruler 42.9 cm
+ Sound measurement: graves, furniture (altar, altar cabinet, altar frame...): Lu Ban ruler 38.3 cm
RULE RULE
The Lu Ban Ruler is a feng shui tool used for measuring during the construction of Yang Ze (house) and Am Trach (grave). On the Lu Ban ruler, common geographical dimensions are divided into sections, along with arcs that help distinguish areas of land with positive or negative effects. This assists the user in identifying which sizes are considered beautiful and beneficial, and in determining which sizes should be avoided to ensure harmony and balance from a feng shui perspective. It can be said, the measurement of the ruler Lu Ban is the measure of feng shui.
The Lu Ban ruler has had many changes and versions over many generations. Above are 3 common types of rulers S-House Use selectively, each ruler is used for a different purpose (noted on each ruler). Learning how to view and apply the Lu Ban Ruler can help homeowners identify good spaces that should be used and bad spaces that should be avoided when constructing, repairing, adding new houses, mausoleums,...

The Lo Ban Ruler is a measuring tool in housing design and construction
I. Where is the origin of the hole ruler?
Lu Ban Ruler Invented in the Spring and Autumn period - Shandong Province, China and is extremely popular in Asian culture. The ruler made by Mr. Lu Ban (or) is considered the father of carpentry and construction. There are a few theories about his background that people in construction still introduce and spread to each other. Lu Ban was a good carpenter in the state of Lu (now Shandong province) during the Spring and Autumn period (770-476 BC). His name is Ban (or), surname is Cong Thau (also read Cong Du). Lu Ban means "Mr. Ban from the State of Lu".

II. What is an online hole ruler?
Lu Ban Online Ruler is an extremely accurate online measuring tool according to Feng Shui, 100% accurate. Helps you confidently measure and build interior and home products that match Feng Shui to bring fortune and luck. S House Joint Stock Company specializes Consulting, architectural and interior design and construction of villas, townhouses, resorts, apartments, luxury apartments, hotels, restaurants, cafes,... Provides standard online ruler tools including 3 types of rulers for measuring different purposes.
III. Structure of a standard hole ruler
There are several types of Lu Ban rulers, but they all have some common characteristics. Regarding the structure of the Lu Ban ruler, we can see that the ruler is divided into 4 rows. The first row measures the size of the Provincial Lot in centimeters, while the second and third rows are rows of letters. Actually, the second and third rows represent two different Lu Ban rulers, respectively the 38.8cm Lu Ban ruler and the 42.9cm Lu Ban ruler. When measuring something with a Lu Ban ruler, if the Lu Ban size is good in the red arc, it is a good size, and if the size is in the black arc, it is a bad size. To measure accurately, make sure the dimensions in both sectors are equal.

Structure of hole ruler
In addition, there is another type of Lu Ban ruler in construction, the 52.2cm Lu Ban ruler, which is specially designed for measuring interior clearances in the house, such as window clearances, windows, doors, doors... The feng shui size of the 52.2cm Lu Ban ruler is also used to measure the interior spaces of rooms according to the homeowner's needs. Therefore, when building houses, we often encounter odd sizes, and the main reason is to use a Lu Ban ruler to measure the size in accordance with feng shui.
IV. How many types of rulers are there? How to see the standard hole ruler
Currently, Lu Ban ruler divided into 3 main types, each type has different sizes and uses. Choosing the right type of ruler will help you measure accurately, ensure feng shui elements and bring good meaning in construction and interior design.
- Lu Ban ruler 52.2 cm
This is kind of Lu Ban ruler Most commonly used for measuring clearance space, such as main doors, windows, openings, skylights or gaps in the building. The ruler helps identify good signs, thereby choosing the appropriate size to attract wealth, luck and prosperity.
- Lu Ban ruler 42.9 cm
Lu Ban ruler 42.9 cm used to measure the solid block in furniture such as tables, chairs, cabinets, beds, kitchens, TV shelves or wooden items. This type of ruler helps homeowners choose a harmonious size, ensuring both aesthetics and positive feng shui meaning.
- Lu Ban ruler 38.8 cm
Type Lu Ban ruler 38.8 cm Commonly applied in the field negative, used to measure the size of graves, sarcophagi, urinals or items related to the mausoleum. The purpose is to choose auspicious signs, show respect to ancestors and pray for peace and prosperity for descendants.
Which type of Lu Ban ruler should I choose?
Each Lu Ban ruler They all have their own uses, so no one is better than the other. When building or designing interiors, you should use the correct type of ruler for each item:
- 52.2 cm: Measure doors, openings and gaps.
- 42.9 cm: Measure furniture, appliances and solids.
- 38.8 cm: Measure works in the acoustics section.
Use correctly Lu Ban ruler will help the dimensions fall into a good direction according to feng shui concept, while ensuring accuracy and suitability for the intended use of each project.
Currently, the Lu Ban ruler has also been updated to Lu Ban ruler online, Convenient for use and reference.
1. Lu Ban Ruler 52.2cm (also known as Lu Ban Clear Water Ruler)
Lu Ban ruler 52.2cm aka Clearance hole ruler Used to measure hollow blocks (measuring the inside), clear spaces in the house such as: Window boxes, ventilation holes, main doors, side doors, windows, openings, spaces between floors,... Often called Door measuring board hole ruler nice window board hole ruler. This hollow dimension is located within a limited housing space, so it directly affects people.
Information about the hole size of 52cm is noted right on the hole ruler and the length of the size is used to calculate good or bad in door clearance. Paying a lot of attention to building blocks will help you be much more spiritually correct.
Specified length of type Lu Ban Ruler This 52 is 520mm. And divided into 8 palaces: Noble Man - Danger - Natural Disaster - Genius - Nhan Loc - Lonely - Thien Tac - Prime Minister 4 good and 4 bad.
+ Quy Nhan: Also known as Nhat Tai Moc Cuoc, this palace brings a positive situation to the family, with a prosperous job, smart and filial children, and good friends.
+ Danger: Also known as Nhi Binh Tho Cuoc, this palace brings scattered fortunes, drifting to far away places, life is always in need, family members often get sick, children are lewd, spoiled, and disloyal.
+ Thien Tai: Also known as Tam Ly Tho Cuoc, this palace is at risk of serious illness, death, money dissipation, husband and wife living in discord and children in trouble.
+ Thien Tai: Also known as Tu Nghia Thuy Cuoc, this palace brings luck in fortune, beneficial talents, children are asked for help, always filial, and the family is long-lived and happy.
+ Phuc Loc: Also known as Nhon Loc, Nhan Loc or Ngu Quan Kim Loc, this palace brings prosperity, abundant happiness, career development, beneficial talents, smart children, studiousness and family happiness.
+ Loneliness: Also known as Luc Cuoc Hoa Cuoc, when falling into this palace, the homeowner will be exhausted, constantly sick, waste money, fall into separation, disobedient children and drink alcohol excessively to death.
+ Thien Tac: Also known as That At Fire Cuoc, this sign brings the risk of sudden illness, being easily involved in lawsuits, prison and death.
The most accurate Lu Ban 52.2cm ruler reference table:

2. Lu Ban Ruler 42.9cm (also known as Lu Ban Duong Ze Ruler)
Lu Ban ruler 42.9cm aka Ruler Lu Ban Duong Trach Used to measure solid blocks (measuring envelopes), indoor details, furniture: Size of beds, cabinets, kitchen counters, steps, etc., so it is often called kitchen measuring board hole ruler, stair measuring board hole ruler. Type hole ruler This also includes 8 major arches with the major arch lip having a length of 53.625mm and each major arch includes 4 minor arches with a length of 13.4mm.
The standard length of the Duong Trach hole ruler is 429mm and is divided into 8 different major arcs in the order of Wealth, Disease, Ly, Nghia, Quan, Nen, Harm, and Network including 4 good and 4 bad.
+ Tai: Means Tai Duc (having talent has virtue). Designing the home's interior according to this zodiac sign will bring more luck, fortune and blessings to the homeowner.
+ Disease: Means illness. When building a house, homeowners should avoid designing in this direction because it will reduce the homeowner's health and easily lead to financial loss.
+ Ly: Means distance. If the owner of the house does not want the family to fall into separation and lose assets, they should not design the furniture in the house in this direction.
+ Meaning: Has the meaning of achieving many good things. This is a great auspicious palace for homeowners who are planning to design a house, especially for newlyweds. Furniture or wall decorations of the house designed according to the Nghia palace will bring a lot of happiness, fill the house with children and grandchildren and help the homeowner have a lot of luck in life.
+ Quan: If the homeowner is a business person, the house's interior should be designed according to this sign, it will attract more luck, bring more luck and opportunities, help the homeowner easily advance in his career, and have his children succeed.
+ Kiep: Meaning prone to accidents. This is a rather bad palace. Homeowners need to avoid entering these palaces so as not to encounter disaster that will kill them. In the light of it, they will have to leave their homeland to live, and in the worst case, they will face separation from their loved ones.
+ Harm: means encountering bad things. If the homeowner builds a house according to this sign, it will bring risks and serious effects on the health of family members, and can even lead to death. Homeowners should avoid designing the interior and walls of the house in this direction.
+ Ban: is one of the most auspicious palaces, bringing the homeowner many benefits. Designing the interior and walls of the house according to this zodiac sign will help the homeowner have abundant money, a favorable business, smart and successful children, along with the support of noble people in life.
Fastest table to look up Lu Ban 42.9cm ruler:

3. Lu Ban Ruler 38.8cm (called Lu Ban Yin Ruler)
The 38.8cm or 39cm ruler is the shortest feng shui ruler in the set of 3 rulers, used to measure distance, length of objects, and measurement in Am Trach construction such as: size of altar room door, grave... Also known as hole ruler Measure the altar well hole ruler grave measurement.
The construction size of this ruler is 390mm and is divided into 10 large arcs, each arc is 39mm long and each large arc is divided into 4 small arcs, each small arc is 9.75mm long.
How to use the Lu Ban ruler is very simple. If the homeowner wants to pray for something, measure according to the correct arc on the ruler. For example: If you want to pray for a happy family and a prosperous business, choose the size according to the "Vuong" zodiac sign. If the homeowner does not have any special wishes, then follow the formula "Use Black - Use Red" to choose the appropriate size.
Lu Ban ruler 38.8cm includes 10 signs: Dinh, Harm, Vuong, Khou, Nghia, Quan, Tu, Hung, That, Tai. There are 6 good signs and 4 bad signs.
+ Dinh: means son. Designing the interior and walls of the house according to this palace will bring a lot of luck and money, helping the homeowner achieve success in education and exams.
+ Harm: brings bad meaning to the homeowner when building a house in this direction. The interior design and walls of the house according to this zodiac sign are susceptible to unnecessary dangers, have little luck, are susceptible to illness and are easily brought into harm's way by the words of others.
+ Vuong: brings good meaning to the homeowner when building a house in this direction. Designing a house according to this zodiac sign will attract a lot of luck, bring the homeowner much joy and fortune, and help the family live a full and happy life.
+ Suffering: Evil in this house makes the homeowner susceptible to losing their wealth due to theft, getting involved in lawsuits, falling into a lonely situation, and facing difficulties in life.
+ Meaning: If the house is built in this direction, it will bring many good things and money to the owner, helping the family live a full and happy life.
+ Quan: This is one of the Good palaces, designing the house according to the Quan palace will help the homeowner live in wealth and prosperity and always have a favorable career path, giving the family a prosperous and full life.
+ Death: This is one of the fierce palaces that homeowners need to avoid when designing a home. Homeowners are likely to find themselves far from home, wasting money and even falling into separation from relatives, especially sons.
+ Hung: for people with few children. Designing a house according to this palace will help the homeowner have many children and grandchildren, live in happiness and wealth, and bring the family a prosperous and happy life.
+ That: not suitable when building a grave for ancestors. Designing a grave according to this zodiac sign can lead to loneliness, loss of fortune and involvement in labor, even imprisonment.
+ Finance: is one of the great suggestions for homeowners preparing to build a mansion. Designing the interior and walls of the house according to this zodiac sign will bring much happiness, money and career success to the homeowner.
Fastest table to look up Lu Ban 38.8 cm ruler:

V. Application of hole ruler in architectural and interior design
1. Determine the direction of the house, main door and windows
Use a ruler to determine the direction of the house that is suitable for the homeowner's age and destiny, such as the front and back directions. Along with that is choosing the location of the main door and windows to be favorable in terms of vitality, light and wind. Therefore, using a ruler to determine the location of doors and windows will help ensure that they are placed in the correct position and size, optimizing living space and ensuring safety for users.
2. Arrange space and furniture
When arranging furniture in the bedroom such as beds, wardrobes, sofas, salons... using a hole ruler will help you arrange the room layout to suit feng shui to bring fortune, in addition to ensuring quiet and comfort for sleep every day.
Similar to office interior space, a ruler will help you measure and arrange your desk, director's desk, and shelves in the right direction to attract fortune.
3. Arrange the altar and worship room
It is necessary to choose the standard altar size to bring luck to the homeowner, children and grandchildren, and avoid violating taboos in feng shui and spirituality. Using a ruler to choose the location for the altar and the direction of worship appropriate to the homeowner's age will bring peace and fortune to the family.
4. Arrange kitchen space
Application to measure the size of kitchen cabinets and divide the room space accordingly, ensuring safety for users. Placing furniture such as dining tables and chairs, decorative shelves and other household appliances such as sinks, refrigerators, microwaves... in the right position and size helps avoid collisions and accidents in the kitchen.
Such Architecture Company Beautiful House S house introduced how to use it Lu Ban ruler and Lu Ban Ruler online with different functions. This ruler is used and applied in construction projects, especially calculating Duong Trach, Good Palace, Bad Palace, the homeowner's door size. Hopefully through the above article you have learned about the meaning and origin of the hole ruler; as well as the feng shui standard Lu Ban dimensions.
Besides Beautiful House S house There are also articles about feng shui that you can refer to.
>>> Housing feng shui: Principles and 22 things to avoid in home feng shui
>>> Living room feng shui: Do's and don'ts when making living room furniture.
>>> Kitchen feng shui: How to arrange kitchen furniture according to feng shui.
See more: Beautiful house design S-House and top impressive projects implemented
If you need design advice, please contact us immediately hotline 0866 006 060 or Schedule a consultation directly with architect S-House will quickly contact you within 24 hours.
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