To calculate the kits required we first look at the size of the area. The type of usage, Pedestrian or Vehicle, determines the thickness of the application. And the Base determines the coverage rate - some bases require more material than others.

Finally, "5% or 10% Extra" is if you'd like to be sure you have enough, 5% extra is standard, 10% if perhaps you are unsure of the base level or the exact size of the area. Remember, our depth advice is the minimum depth the resin can be at any part. You cannot not apply Vuba Surfacing at an average depth.