Outdoor Project Planning Tools
Turn measurements into a clearer materials brief. Choose a tool, check your supplier’s specifications, then save your estimate or discuss your project with ONZKO.
Landscape materials
Estimate bulk soil, mulch, compost, sand and aggregate across multiple areas.
Open calculator →Natural Lawn & Turf Roll Calculator
Work out your lawn coverage, whole turf rolls and optional preparation soil. Use the coverage printed on your supplier’s roll specification.
Open calculator →Synthetic Lawn Coverage & Layout Calculator
Plan full-width strips, purchased coverage and seams for a rectangular lawn. Compare laying directions while keeping the grass pile consistent.
Open calculator →Paving & Patio Quantity Calculator
Estimate pavers, full packs and an optional loose base layer from your patio dimensions and selected product sizes.
Open calculator →These tools estimate quantities using your inputs. They do not confirm product availability, price, structural suitability or installation requirements.