Professional EOT Claims & Prolongation Cost Computation Guide
This comprehensive guide provides a professional Extension of Time (EOT) claims template and prolongation cost computation methodology for construction projects. Includes both professional printed format narration and Primavera P6 professional format files. The EOT claims prolongation cost computation framework follows industry-standard Time Impact Analysis techniques.
What’s Included in This Package
- EOT Claims Narrative Template — Professional printed format with detailed delay analysis structure
- Primavera P6 Professional Files — Time Impact Analysis (TIA) ready schedules
- Prolongation Cost Calculation Excel Sheet — MS Excel format with formulas for overheads, labor, equipment, and materials
- Real Project Case Study — Actual claim submitted to consultant and approved conditionally
Methodology: Time Impact Analysis (TIA) for EOT Claims
The guide uses the Time Impact Analysis technique to determine delay impact on the critical path. This industry-standard method inserts delay activities into the current schedule to quantify time extension entitlement. The EOT claims prolongation cost computation process integrates schedule delay analysis with financial impact assessment.
Prolongation Cost Components Covered
| Cost Category | Calculation Basis |
|---|---|
| Head Office Overheads | Percentage of contract value / Emden Formula |
| Site Overheads | Daily site running costs × extension days |
| Labor & Staff | Key personnel daily rates × extension period |
| Plant & Equipment | Standing charges + operating costs |
| Materials & Storage | Escalation + storage charges |
Who Needs This EOT Claims & Prolongation Cost Computation Guide
- Planning Engineers preparing EOT submissions
- Contractors claiming prolongation costs
- Quantity Surveyors validating cost claims
- Project Managers reviewing consultant responses
- Construction Lawyers supporting delay disputes
Related Resources
- Delay Analysis Methodology — 48 Day Extension of Time Assessment
- Delay Impact Assessment — Extension of Time Guide
- Delay Analysis & Extension of Time Assessment Guide
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Part of the Engineers Blog Construction Document Template Series. Trusted by planning engineers across GCC projects since 2022.






Ahmed K. (verified owner) –
Excellent quality template, very professional and well-structured.
Mohammed S. (verified owner) –
Great document, saved me a lot of time on my project.
John D. (verified owner) –
Very comprehensive and easy to customize. Highly recommended.