Planning estimates
Results are estimates based entirely on the measurements and assumptions entered. Real projects can differ because of site conditions, product dimensions, installation methods, breakage, cutting patterns, packaging and workmanship.
Not professional design
Nothing on this site is structural engineering, architectural, surveying, legal or regulatory advice. Do not use a quantity calculator to make safety-critical design decisions.
Verify before ordering
Check important quantities against current drawings, specifications, manufacturer technical information and supplier advice. High-cost, bespoke or irreversible orders deserve a second independent check.