Calculator
Coverage & units needed
Find how many Armor Ball® units your surface area requires.
Coverage & units calculator
How many Armor Ball® units do I need?
Armor Ball® covers at 10 balls/ft² (108/m²) and achieves a 91% surface cover. Figures are estimates; we confirm exact quantities on quoting.
Estimated units
Estimate only; final quantities depend on pond geometry and freeboard. Request an engineering assessment.
FAQ
About this calculator
How many balls cover one square foot?
Armor Ball® covers at about 10 balls per square foot (108 per m²), forming a 91% interlocking surface layer per AWTT published data.
How many balls does a 1-acre pond need?
One acre is 43,560 ft². At 10 balls/ft², a 1-acre pond needs roughly 435,600 Armor Ball® units. Exact quantities depend on pond geometry and freeboard.
Is the estimate exact?
It is a planning estimate. Final quantities are confirmed on quoting, accounting for pond shape, walls, and any equipment areas.
Get a custom Armor Ball® quote
Tell us about your site — surface area, liquid, and goals — and we'll size a cover and respond within 24 hours.
Manufactured by AWTT · 700+ installations · 25 countries · 10-year warranty