Free planning tools

Plan your build, with numbers you can trust

Simple calculators and guides for home builders, architects and contractors. No sign-up. When you are ready, send us the numbers and we will quote.

All planning tools

How many litres does your household need? Get the right overhead or underground tank size.

How much water can your roof collect in a year? Estimate the harvest and what it covers.

Tiles, boxes and bags of adhesive for your floor or wall, with wastage included.

A checklist of every fitting you need, by bathroom, so nothing is missed on site.

Which pipe, and what size, for hot water, cold water, drainage and rainwater.

Get a free quote

Share your project details and we will recommend brands and quote the materials.