When you need it
Use this worksheet when a significant cost item needs a transparent estimate and the estimator must compare available methods, explain the selected basis, reconcile boundaries, and disclose remaining uncertainty.
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AI tools and documents for engineering and project management.
Cost Estimating Worksheet
Document the method, inputs and review of a cost estimate for a defined item or package.
How to use this templateThis Word template contains prepared headings, tables, project fields and completion notes. Add your information, review the completed document and remove the notes before issue.
The form prepares a separate brief; it does not fill the Word or Excel file.
Read product descriptions in your language. The Word and Excel template files are in English.
Only selected pages are shown. This is not the complete template. The full editable Word or Excel file is supplied with purchase.
Learning
How to use this template
What it helps you decide
It exposes the reasoning behind an estimate rather than presenting a single unsupported number, allowing reviewers to test source quality, method suitability, allowances, and the consequences of incomplete definition.
How to complete it
- Define Estimate item and boundary precisely, then record Inputs and evidence using quantities, comparable records, quotations, or other sources actually available for review.
- Complete Method comparison and Selected estimate rationale, explaining why the chosen approach fits the maturity, scope, and quality of the available information.
- Reconcile Estimate reconciliation with included and excluded scope, then record Review and remaining uncertainty so the estimate's limitations travel with its reported result.
Who prepares and reviews it
An estimator or quantity surveyor typically prepares the worksheet with engineering, procurement, and delivery input. A cost reviewer challenges sources and method selection, while the authorized project decision maker determines how the estimate is used.
A mistake to avoid
Selecting the lowest result from several methods without explaining differing scope or assumptions creates false precision and can systematically understate the required allowance.
Illustrative example
Illustrative example: a project estimates a retaining wall before detailed design. The estimator compares quantity-based costing with a relevant previous wall, records different ground assumptions, and selects a qualified estimate. The reviewer requests targeted ground information before the figure is used for a firm package budget.
Document contents
- Estimate item and boundary
- Inputs and evidence
- Method comparison
- Selected estimate rationale
- Estimate reconciliation
- Review and remaining uncertainty
Required inputs
- Project name, location, company, document number and revision
- Actual project scope, source records and responsible roles
Practical tools.
Professional judgment.
Confirm the adopted edition, local amendments, National Annex where relevant, and contract requirements.
Prepare project brief