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NT-258 / Decision pack

Home project cost planner

Keep the project estimate and uncertainty visible.

Estimate task-level materials and labour with an explicit contingency allowance. Track confirmed quotes separately from personal estimates and keep permissions or safety requirements outside the arithmetic.

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Editable .xlsxPDF guideNo macros

Start with the decision

What budget follows from the entered quantities, labour and contingency?

Individuals planning a defined home project.

From input to next step.

  1. 01

    Break down the work

    Use a defined scope and identify tasks or purchased components. Enter one quantity and unit basis for each row; do not mix a whole-job quote with its component costs.

  2. 02

    Add the estimates

    Record material or item cost, labour hours and hourly cost where appropriate. A fixed supplier quote belongs in the appropriate whole-cost input rather than being counted twice.

  3. 03

    Review uncertainty

    Apply a deliberate contingency and record its rationale. Confirm scope, permissions and competent professional requirements before booking or starting regulated or hazardous work.

A look inside

The example, in plain sight.

Fictional values from the workbook. Amounts are illustrative currency units, not a market rate or a customer result.

Project task
Storage units
Quantity
3
Unit item cost
120.00
Labour hours
4
Labour cost per hour
30.00
Contingency
10.0%
Base estimate
480.00
Planning allowance
48.00
Planning total
528.00

Before you use the result.

  • An estimate is not a supplier quote.
  • Contingency is not a guarantee of the final cost.
  • Do not duplicate costs already included in a fixed quote.

A project budget worksheet, not construction, safety, legal or technical advice.

A few useful answers.

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No. The planned shop sells each product separately for a one-off price. You will not need a membership, a bundle or a credit balance.

What will I receive?

Each product includes a PDF guide, an editable Excel workbook, a fictional worked example, a blank worksheet with 50 prepared rows and a decision log. Working kits also include an implementation plan and an adaptable message. The exact file list is on each product page.

What software do I need?

A PDF reader and spreadsheet software that supports standard .xlsx formulas. The workbooks contain no macros or external data connections. Formula results depend on your inputs and your spreadsheet software recalculating them. No paid AI account is required.

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