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- Last updated
- June 10, 2026
- Size
- 18.1 MB
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Store listing
By Cuong Ngo Quang, from the App StoreDescription by Cuong Ngo Quang Written by the developer, not by AppBrain. Click to read.
Currently, many types of pre-made Lu Ban rulers are on the market with a maximum length of only 5 meters. The disadvantage is that users cannot determine the size, as well as the good and bad measuring when the length exceeds 5 meters.
Grasping this practical need, our Online Lu Ban Ruler application was born, and is available on multiple platforms, with the maximum length of the Lu Ban ruler up to 16 meters, we hope to help everyone easily pull the Lu Ban ruler anytime, anywhere, whenever, and choose the right golden size as desired.
Based on the lookup measuring, people can use them to determine good and bad measures, to use for houses (doors, windows, height floors...), to use for graves (altars, tombs...), to use for furniture (tables, chairs, wardrobes,...).
2. Learn more about the Lu Ban Rulers.
a. What is a Lu Ban ruler?
A Lu Ban ruler is a type of measuring instrument used to measure dimensions in construction. The name of the Lu Ban ruler is named after the person who invented it - Lu Ban.
This type of Lu Ban ruler is used in the construction of Duong Trach (houses) and Am Trach (graves). On this type of ruler, there are normal size divisions, corresponding to good and bad arcs. Correspondence in the Lu Ban ruler helps people know which sizes to use and which sizes to avoid.
- Graves (Am Trach)
- Houses (Duong Trach)
b. Classification of Lu Ban rulers
Currently, there are many different types of Lu Ban rulers on the market, but in terms of popularity, the 52.2 cm Lu Ban ruler, passed down through generations, and the retractable ruler with dimensions of 42.9 cm at the top and 38.8 cm at the bottom are the most common. Of course, depending on the type of ruler and the item being measured, such as doors, altars, etc., there will be different methods to calculate and determine the "golden measurements.".
3. Main features of the Online Lu Ban ruler application.
- Pull the Lu Ban ruler to select the golden dimensions according to each type of Lu Ban ruler: 52.2 cm, 42.9 cm, 38.8 cm.
- The maximum length that the ruler can be extended is up to 16 meters.
- You can enter specific dimensions in mm to quickly select the desired size.
- View the meaning of the good and bad ranges on each type of Lu Ban ruler.
- Refer to the available golden dimensions, used as the clear height of each floor. Used for windows, and doors. Used for the height, length, and width of the altar. Used for the height and depth of the kitchen...
- Project function: Helps users save the dimensions they choose to use for personal and company projects.
4. Payments - Subscriptions
- The Terms of Use (EULA) are available at: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
- The Privacy Policy is available in the Privacy Policy field in App Store Connect at: https://developer.apple.com/help/app-store-connect/manage-app-information/manage-app-privacy/
5. Disclaimer.
This application was created by individual Ngô Quang Cường and is owned by GiaPhuGroup.com®. This application was designed to help users extend the online Lu Ban ruler up to 15 meters, view the good and bad ranges, and select the desired golden dimensions. All size parameters showing good and bad ranges on this online Lu Ban ruler application are for reference purposes only. The choice of which dimensions to use for any purpose is entirely up to you. We are not responsible for any reason.
- Terms and conditions: https://www.thuoclobanonline.com/en/menu/online-lu-ban-ruler-terms-and-conditions/
- Privacy Policy: https://www.thuoclobanonline.com/en/menu/online-lu-ban-ruler-privacy-policy/
For any inquiries or feedback, please send them to the email address: sales@giaphugroup.com. We will respond to you within 24 working hours.
Safety and technology
Found in the app by AppBrain- Price
- Free
- App size
- 18.1 MB
- Content rating
- High
Technologies used by Online Lu Ban Ruler
Releases
Updates seen on the App Store- Version
- 2.1.3
- Launched
- April 2024
No changelog data
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About the app and developer
About Online Lu Ban Ruler
Online Lu Ban Ruler is a lifestyle app developed by Cuong Ngo Quang.
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The app has no ratings yet.
App Information
Online Lu Ban Ruler is freely available from the App Store. The app size is 18.05 MB. The latest version available is 2.1.3. The last update was on June 10, 2026.
Technical Requirements
The app has a content rating of High Maturity. The app has been available on the App Store since April 2024.
Online Lu Ban Ruler is made and published by Cuong Ngo Quang. AppBrain is an independent app data site and isn't affiliated with Cuong Ngo Quang. The app name, icon, screenshots and description belong to Cuong Ngo Quang and are shown as published on the App Store.
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