Lacing Bar and Lacing Board: Overview
Lacing bar installed horizontally inside the water tank at multiple levels.In the construction of modular water storage tanks, lacing bars and lacing boards play a critical role in ensuring structural stability, rigidity, and long-term performance under full water load and external forces such as wind or seismic activity. These components are essential for reinforcing the tank panels, preventing deformation, and maintaining the tank’s cylindrical or rectangular shape over decades of service.
How It Works: The Structural Role
When the tank is filled with water, hydrostatic pressure pushes the walls outward.
The lacing bars resist hoop stress horizontally.
The vertical support rods counteract vertical bending moments and transfer tensile forces downward.
Together, they form a stable framework that keeps the tank rigid and round/square.
Lacing Bar and Lacing Bar Board: Main Types
Typically manufactured from high-tensile galvanized steel or stainless steel for corrosion resistance.
✅ Option 1: Carbon Steel, Galvanized Surface Coating, Cost is lower
Application: Most are use for non-potable water。
✅ Option 2: Stainless Steel, Steel Grade SS304 or SS316, Cost is expensive
Application: Most are use for potable water。
Lacing Bar and Lacing Bar Board: Installation
Notes: GRP Water Tank lacing bar system is different with steel panel water tank, steel panel water tank without lacing bar board.
Step 1: Determine Lacing Levels
Refer to the tank design drawing for required lacing levels.
Step 2: Position the Bar Ends
Step 3: Tension the Lacing Bars and Install Lacing Bar Board
Refer to the lacing bar board position that our company send to clients, each lacing bar board has 4 holes at corner of board plate, use the bolts and nuts to fasten it. if it is steel water tank, it is no lacing bar board, just fixed it to the side panels.
Step 4: Final Inspection & Verification
Conclusion
The correct installation of lacing bars and lacing boards is not optional — it is a critical step in building a safe, durable, and code-compliant water tank. Whether you’re working with HDG steel or GRP panels, a well-installed lacing system ensures structural integrity for decades.
As a trusted global supplier, we provide complete lacing kits with detailed instructions, compatible materials, and technical support — so your project is built right the first time.
Need help selecting or installing lacing components? Contact our engineering team today for expert guidance.
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Web: www.cnhbwatertank.cn
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