Downloadable spreadsheet · Excel + Google Sheets

Cost your build: fiberglass, resin and the lot.

List each part, pick a cloth, and get glass, resin and litres per part. Then a full materials cost including your own line items.

Get it now for A$24.99 (approx. US$15)

One-time A$24.99 (approx. US$15) · Excel + Google Sheets · free v1.x updates · 14-day money-back guarantee, no questions asked

What’s inside

My Project: prices & waste once
Laminate Schedule (cloth presets)
Materials Cost + line items to grand total
Transom Thickness
Deck Plank Spacing
Hull Volume
Cloth reference (g/m² + ratio)

Why it beats the free calculators

  • Turns laminate into a real materials order
  • Full project cost, not just resin
  • Cloth presets auto-fill gsm + ratio
  • Offline, editable: Excel + Google Sheets

A look inside

Screenshot: Overview tab
Screenshot: A calculation tab
Screenshot: Results

Questions

What does the cost estimate include?

Glass, resin and gelcoat from your laminate schedule, plus an Other Materials line-item table (core, timber, fasteners, paint, fittings) — rolled into a project grand total in AUD with a waste margin.

Does it handle different cloth types?

Yes. Pick from presets (CSM, woven roving, biaxial, plain cloth) and the gsm and resin:glass ratio fill in automatically — or type your own for a custom cloth.

Is it metric?

Yes — square metres, kilograms, litres and Australian dollars, in Excel or Google Sheets.

Ready when you are

From the team behind the 50+ free marine calculators at boatcalculators.com.au.

14-day money-back guarantee, no questions asked