Patio Size Calculator

Enter width & length in metres or mm.

7800 mm = 7.8 m. We convert automatically when “mm” is selected.

Linear Metre Calculator

For edging/trims – calculates pieces including waste.

Sub-base Material Calculator

Estimate DTp1 / MOT Type 1 tonnage.

Formula: area × (depth/1000) × 2.12 (bulk density t/m³).

Bedding Mortar (5:1) Calculator

Estimates sharp sand & cement for a 50 mm bed.

Per 20 m² → ~1800 kg sharp sand & ~319.2 kg cement.