Factory construction Following the correct procedure is an indispensable step to own a factory building that meets technical standards and is safe according to regulations. Below is detailed information that Hai Long Construction provides to help businesses build quickly and meet standards.
1. Factory design process
1.1. Survey and Construction Plan
- Site Survey: The construction unit will check the terrain and site to propose a suitable design plan.
- Design plan: Architects and technicians will analyze and propose technological solutions and technical infrastructure, ensuring the construction process is reasonable, saving time and costs.
- Every design option is considered and optimized to ensure:
- Environmental Compliance of the State, industrial park or industrial cluster where the project is implemented.
- Meet fire safety standards, protecting the building and users comprehensively.
- Finally, the engineering team will analyze the local geology to propose the most suitable foundation structure. At the same time, the main construction standards and regulations will be strictly applied, ensuring the stability and long-term life of the factory.
With a methodical design process, businesses will own factories that meet all technical standards and long-term efficiency.

1.2. Preliminary drawing design
After surveying and proposing construction options, the team of architects and engineers will materialize the ideas through detailed drawings, including the entire planning plan, each item's plan, and 3D perspective of the project. These drawings help investors easily visualize and accurately grasp the project after completion.
Depending on the production sector, technological line and scale of each factory, the design of the floor plan will be different. The drawings need to clearly show the construction items in the project such as construction density, construction boundaries, internal road system, tree density, etc. In addition, drawings related to the fire prevention and fighting system and the escape system also need to be focused on to ensure safety and compliance with regulations.

1.3. Prepare detailed drawings and estimate construction costs
The preliminary drawing is the basis for the investor and the construction unit to discuss and agree on the final construction plan. After that, the team of engineers and architects will complete the detailed construction drawing.
At this stage, the drawings will describe in detail all construction items, including:
- Architectural details.
- Foundation structure plan.
- Drawing of prefabricated steel frame and connecting nodes.
- Material specifications.
- M&E drawings (electrical, water, mechanical).
- Fire protection and escape system.
Detailed items include:
- Factory area.
- Storehouse.
- Office area.
- Canteen, cafeteria, rest area for staff.
- Underground tank.
- Power station.
- Garage, guard house.
- Gate, fence system.
At the same time, the investor needs to carry out procedures to apply for construction and fire prevention permits. On the construction side, the team will make a construction cost estimate, detailing each job and specific volume for each item.
The documents including construction drawings and cost estimates will be the basis for project acceptance and determining the volume of work completed later.
2. Factory construction process
After completing the design, the construction unit will carry out the steps to build the factory.
2.1. Receiving and storing construction materials
Before starting construction, the construction unit must receive materials that ensure the correct quantity and quality as required in the estimate. For example: steel, corrugated iron, bricks, cement, etc. Due to the large volume of materials needed, there may be a situation of inconsistency in quantity and type, especially with small details such as bolts and screws.
Thorough inspection upon receipt of materials is mandatory. At the same time, the contractor must ensure that materials are transported to the warehouse and stored carefully to avoid damage, wear and tear or rust before use.
Deteriorated material quality not only causes waste but also directly affects the quality of the construction. Therefore, the preservation and management of materials must be strictly implemented to ensure construction progress and quality.

2.2. Factory floor construction
Factory foundation construction is an important and indispensable step in the construction process, because the foundation directly affects the sustainability of the entire project. Below are the steps to take:
Step 1: Leveling the ground
Depending on the current ground condition in the construction area, the contractor will carry out appropriate leveling to create a stable surface for the next stages.
Step 2: Locate the heart axis
Locating the center axis is an extremely important task, determining the exact location of the column foundations based on the design drawings. This is the basis for the accurate construction of the entire project.
Step 3: Dig the fence foundation
With a large area, the factory needs a solid fence system. The foundation work of the fence needs to ensure depth and a solid structure to withstand well over a long period of time.
Step 4: Construction of foundation and beams
Foundations and beams are made based on the determined centerline position. Factory foundations are usually made of reinforced concrete, with single foundation or pile foundation design depending on the load and ground conditions.
Step 5: Compact the ground
After completing the foundation, the ground is leveled and compacted to achieve the required density in the design drawings, ensuring good load-bearing capacity.
Step 6: Rolling the stone floor for the factory
The stone base layer is spread evenly and compacted to achieve the standard density and thickness in the design, creating a solid cushion for the concrete base.
Step 7: Construction of factory floor
Upon completion of the above steps, the construction unit will proceed to install steel reinforcement and pour concrete for the factory floor, ensuring durability and high load-bearing capacity.
The above process must be carried out strictly to ensure the quality and progress of the project.
2.3. Construction of factory steel frame
Steel frames are considered the backbone of the factory, playing an extremely important role in ensuring the solidity and load-bearing capacity of the entire structure. This is one of the most important stages in the factory construction process.

Requirements for steel frame construction
- Stability: Steel frames must be installed properly to ensure load-bearing capacity and durability throughout their life.
- Accuracy: The accuracy of steel frame installation directly affects subsequent construction items such as roofs, walls, and other factory systems.
- Safety assurance: Construction process must strictly comply with labor safety regulations.
Steel frame installation support tools
To increase accuracy and reduce installation time, contractors use modern measuring equipment such as:
- Theodolite: Helps measure and locate the exact position of steel structures.
- Laser projector: Used to align angles, heights and ensure components are installed in straight lines.
- Crane or lifting equipment: Used to move and install large and heavy steel bars.
Steel frame construction process
- Prepare steel structure:
- Check the quality of steel components before installation.
- Ensure components are precisely machined, free from warping or rust.
- Installation of main steel pillar:
- Start by locating and fixing the main steel pillars on the constructed foundation.
- Check the verticality and firm connection between the steel column and the foundation.
- Installation of beams and purlins:
- Install cross beams and purlins according to design drawings to ensure good load-bearing structure.
- Use high strength bolts to firmly connect the components.
- Check and adjust:
- After installation is complete, check the entire steel frame for strength, correct position and angle.
- Correct any unsatisfactory points to ensure quality.
Steel frame construction needs to be carried out by a team of professional and experienced technicians to ensure the progress and quality of the project.
2.4. Roof construction for the factory
After completing the steel frame assembly, the factory roof construction process is carried out. This is an important step to ensure that the factory has good shielding ability, is strong and durable in all weather conditions.
Requirements for roof construction
- Chinese traditional costume: The first sheet of roofing must be aligned precisely as this will be the reference point for the subsequent sheets.
- Aesthetics: The joints between the corrugated iron sheets must be aligned, creating a beautiful and even roof surface.
- Waterproofing: The installation of corrugated iron sheets must ensure that there are no gaps or areas that are prone to water seepage, helping to effectively waterproof the roof.
Roof construction process
- Prepare corrugated iron sheet and tools:
- Check the quality of the corrugated iron sheet, make sure it is not warped, rusted or scratched.
- Prepare necessary tools such as drills, self-drilling screws, and safety equipment.
- Install the first sheet of corrugated iron:
- Determine and secure the position of the first roofing sheet.
- Make sure the corrugated iron sheet is installed straight, perpendicular to the purlin and according to the design drawing.
- Install the next panels:
- The successive sheets are overlapped at the joint point, ensuring that the pillow point always lies in a straight line.
- Use self-drilling screws to securely fix the corrugated iron sheet to the purlin.
- Check and adjust:
- Check the entire roof to ensure the panels are installed properly and have no gaps.
- Adjust joints to ensure aesthetics and waterproofing.
- Finishing the roof:
- Install accessories such as gutters and drain pipes to complete the factory roof drainage system.
- Ensure the roof has good load-bearing capacity and high durability.
Notes when constructing roof
- Ensure worker safety when working at height with protective equipment such as safety belts, hard hats, and non-slip shoes.
- Choose roofing materials suitable for climatic conditions and factory usage requirements.
Proper roof construction not only ensures the quality of the project but also prolongs the life of the factory.
2.5. Construction of surrounding walls and walls inside the factory
The surrounding walls and the walls inside the factory play an important role in protecting the building from external factors such as wind, dust, rain, and environmental impacts. Materials commonly used for the surrounding walls and walls inside the factory can include corrugated iron, bricks, or other fireproof and insulating materials. This step needs to be done carefully, ensuring stability, safety, and conformity with the architectural design of the factory.
Construction process of factory walls and interior walls:
- Material preparation and testing:
- Choose suitable wall materials such as corrugated iron, bricks, or fireproof, insulating materials (eg Smartboard, Gywall plasterboard).
- Check the quality of materials, ensure there are no defects, especially for fireproof materials.
- Construction of walls and partitions:
- External walls: Construct the wall surrounding the factory using the selected materials. The wall must ensure safety against external factors such as wind, fire and dust.
- Partitions in the factory: These partitions can be made from fire-resistant and insulated materials to ensure durability and safety throughout their use. Partitions can include rooms, production areas, or storage areas.
- Installation of doors, windows, vents:
- After completing the construction of partitions and walls, the construction unit will continue to install doors, windows, and ventilation doors to ensure ventilation and easy movement in the factory.
- Doors should be selected in the correct size and type to suit design requirements, and should be fire, wind and dust resistant if required.
- Check and complete:
- After completing the construction of walls and partitions, the technical team needs to re-check important points such as tightened bolts, joints between material panels (corrugated iron, bricks, plaster), and gaps at the doors.
- This inspection helps ensure there are no water leaks, ensuring that the structures do not leak when it rains.
Notes when constructing surrounding walls and walls inside the factory:
- Fire safety: Using fireproof materials for partitions and walls is very important to ensure safety in case of fire or explosion.
- Wind and dust proof: Especially for factories with production areas, choosing materials and constructing walls without gaps helps minimize dust and wind entering the production area.
- Door installation techniques: Door installation must comply with safety standards and technical design, ensuring tightness and good protection for the building.
Construction of enclosure walls and partitions is an important step in the factory construction process, ensuring that the project is well protected and meets safety and quality requirements.
2.6. Infrastructure construction
Construction of infrastructure system around the factory includes: drainage ditch system, access road, yard, warehouse, yard... The above infrastructure items are to ensure the transportation of goods and production activities. , working at the factory takes place most smoothly.
2.7. Construction of technical systems
In the next step of the factory construction process, the construction unit will construct technical systems for the factory such as: Electricity system, water system, drainage system, waste treatment system, fire prevention system. Fire fighting, communication systems, etc. These technical systems will ensure the factory operates smoothly and most effectively.
2.8. Completion and installation of equipment
Once the main construction steps such as steel frame, roof, and surrounding walls are completed, the next step in the factory construction process is completion and installation of equipment and machineryThis is an important step to ensure the factory is ready for operation, meeting production requirements and long-term operation.
2.9. Clean and put into use
After completing the above steps, the construction team will clean the entire factory area one last time before putting it into operation and use. After ensuring everything has been installed correctly, without any technical errors, the construction unit will hand over the project to the investor.
In addition to cleaning and inspection as soon as it is completed, the contractor must also carry out warranty, maintenance, and regular maintenance work for the project. This will ensure the project operates most effectively and most persistently over time.
You are looking for one Prestigious and professional factory and warehouse construction unitPlease contact Hai Long Construction for advice and quotation:
- HAI LONG CONSTRUCTION JOINT STOCK COMPANY – MEMBER OF TAIYO GROUP
- Address: Taiyo Building, 97 Bach Dang, Ha Ly Ward, Hong Bang District, Hai Phong City, Vietnam.
- Hotline: 084 6625 888
- Email: info@hailongjsc.vn