
In there:
The total construction area is calculated as follows:
1st floor (Ground floor): 100% construction land area
Floor (2nd floor and above): land area x number of floors
The roof: 30% of the land area if it is a corrugated iron roof; 50% of the land area if it is a flat roof and 70% of the land area if it is a tile roof
Courtyard: 50% of the land area
+ How to calculate the cost of foundation:
Single foundation: included in the construction unit price.
One-way tapered foundation: 50% x ground floor area x unit price of raw parts.
Two-way ice foundation: 70% x ground floor area x unit price of raw parts.
Pile foundation: [250,000 VND/m x number of piles x length of piles] + [Pile pressing labor] + [Functional coefficient x 1st floor area (+yard) x unit price of raw part].
Pile foundation: [VND450,000/m x number of piles x length of piles]+ [Coefficient of foundation base x area of 1st floor (+yard) x unit price of raw part].
The application of pre-engineered steel buildings in the construction of factories helps investors and businesses shorten construction time, save costs, reduce the foundation structure but still ensure good bearing capacity for the whole building. works set.
Although the size of the factory is small, the procedure as well as ensuring a finished work is put into use is not much different from that of a large-scale project. The Contractor guarantees the following matters:

- Construction design drawings: This is the first issue every contractor must meet when receiving a project, big or small. Because there is no drawing board, the construction unit does not know how to build a 100m2 factory, how much to budget, what materials to buy to provide for the construction.
- Consider topography: this involves visualizing how the design drawings are formed, what needs to be enhanced to make the factory suitable for the land.
- Apply for a construction permit: Applying for a construction permit is a must for any investor or business when building a factory. This is a general provision of Vietnamese law and if ignored, your work will be forced to stop if it is under construction or to be demolished if the work is completed. When building a 100m2 high-rise factory, you must apply for a permit to build how high, how many floors ... This is an immutable principle in construction, so both the contractor and the construction unit need to pay attention to ensure that cover this issue.
Building factories to serve the increasing production needs of enterprises. Understanding that problem, we were born with the mission of a quick construction contractor, fully ensuring the wishes of investors. When customers and investors have demand, BIC will quickly advise, provide effective construction solutions and quote the cheapest price to have the opportunity to receive projects from investors.