Owner Protection Tools

Grey Structure vs Finishing Cost Split Calculator

Separate grey structure and finishing costs so you can see how quality choices change the total project budget.

Calculator

Enter covered area, floors, grey rate, finishing quality, and contingency.

Assumptions

Default finishing rates represent broad economy, standard, premium, and luxury planning bands. You can enter a manual finishing rate when you have a supplier or contractor estimate.

What This Tool Does Not Include

It does not include land cost, financing, approvals beyond contingency assumptions, basement work, unusual foundation design, or detailed item-by-item BOQ rates.

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FAQ

Why can finishing exceed grey structure?

Premium tiles, sanitary fixtures, woodwork, kitchens, electrical fixtures, and facade choices can make finishing more expensive than structure.

Should I use manual finishing rate?

Use it when you already have a local contractor or supplier rate that is more realistic than the default quality bands.

Is contingency required?

Yes. Even well-planned projects face rate changes, wastage, rework, and scope changes.

Estimate Disclaimer

This tool provides a preliminary estimate for planning and discussion only. Local rates, site conditions, design requirements, labor practices, contractor scope, and engineering requirements can vary. Always verify with a qualified professional before making financial, structural, or contractual decisions.