
Trade tools
Kota stone calculators
The arithmetic masons, contractors and buyers do every day, in one place. Install the app and these keep working with no signal at all.
Stone, freight, loading and GST in one window — it opens over any page on the site. Download it as a single file to keep on your phone and use with no signal.
Weight and quantity
Weight calculator
Weights are the loaded averages we plan freight with. Uncalibrated Kota carries about 5–7 mm of thickness variation, so an actual consignment can run either side of these figures. Truck loads are counted at 22 tonnes.
Cost
Flooring cost calculator
Material, freight, labour, bedding and polishing — the whole cost, worked out from rates you have actually been quoted. The full calculator lives on the cost page.

