Terms & disclaimer
Use estimates with care.
Calculator.Shop provides general material quantity estimates for planning straightforward home and garden projects.
Not professional advice
The calculators are not structural engineering, construction design, building-regulation, electrical, gas, plumbing, water-supply, ventilation, waterproofing, drainage, legal, financial, medical or safety advice.
Your responsibility
Check the actual site, product specifications, pack sizes, coverage and manufacturer instructions. Get appropriate professional advice for any safety-critical, structural, regulated or uncertain work. Do not rely on a result as permission, approval or certification.
Results are estimates
Real material needs vary with dimensions, cuts, pattern matching, product variation, substrate, surface condition, handling and installer method. Purchase quantities are rounded for practical planning and may not reflect a merchant's pack availability.