Garden Calculators
Material calculators for garden and outdoor projects. Each calculator provides multi-material output, waste factor adjustments, and a downloadable PDF material list.
Paving & Hardscape
Paving Slab Calculator & Sub-BaseCalculate paving slabs, sub-base aggregate, bedding sand, and jointing compound for patios, paths, and driveways with waste factor.Artificial Grass Calculator & InfillEstimate artificial grass, adhesive, sand infill, membrane, and joining tape for any lawn shape. Includes seam and waste calculations.Pond Liner Calculator with OverlapCalculate pond liner and underlay sizes with overlap allowance for rectangular, kidney-shaped, and irregular ponds. Includes depth.
Lawn & Ground Cover
Mulch Calculator with Depth GuideEstimate how much mulch you need based on bed area and desired depth. Covers bark, wood chip, decorative gravel, and rubber mulch types.Topsoil Calculator with Depth GuideEstimate how much topsoil to order based on area and depth. Converts between litres, cubic metres, and bulk bag delivery weights.
Planting
Raised Bed Soil Calculator & MixCalculate topsoil, compost, and perlite for raised beds in the right mix ratio. Supports rectangular, L-shaped, and U-shaped beds.Lawn Seed Calculator & CoverageCalculate grass seed quantity by lawn area and seed rate. Covers new lawns, overseeding, and renovation with type-specific rates.Lawn Turf Calculator & Roll CountWork out how many turf rolls you need for your lawn area with a cutting waste allowance. Includes roll count and coverage summary.Plant Spacing Calculator & LayoutCalculate plant quantities using grid or staggered spacing layouts. Covers ground cover, border planting, and mass planting schemes.Hedge Planting Calculator & SpacingEstimate hedge plant quantities based on row length and species spacing. Supports single and double row planting for dense hedges.
Looking for interior projects?
Interior Calculators