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Development & Lap Length
Development length, lap splice length and hook length of steel bars.
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About this calculator
Enter bar size and materials.
How it's calculated
- ld = fy·ψt·ψe·db / (2.1λ√f′c) for ≤ #6
Results are calculated from the values you enter using standard formulas. Download the PDF to keep a record. For certified testing, design or construction, talk to our engineers.
Cite this tool
Kataria Engineering & Consultancy Services (2026). Development & Lap Length [online calculator]. https://katariaengineering.com/tools/development-length-lap-length.html
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