Kubla Cubed User Manual
Rarely is paving made up of a single material. For instance, a tiled area will may have layers of sand and gravel underneath for stability. A road would have even more layers. If you have an overall paving volume calculated, it is quite easy to break this down into different layers using ratios or percentages. For example, if paving is made up of 20% tile, 20% sand and 60% gravel, breaking down the overall paving volume into different materials in a spreadsheet is straightforward.
However, you can also model this also in Kubla Cubed. To do so, create different phases for each layer and use 'Reduce' elements with a height set to just the thickness of the strata. This method has the benefit of each material in paving having a separate volume in the exported reports and spreadsheets. It is best to have one phase per material and name the phase after the material. For many projects, this might be considered overkill given how easy it is to complete in a spreadsheet, but it is possible to do this if needed.