Notes

A bulk bag calculator for a landscape supplier, built on Phox Calculator Builder in formula mode: three sliders for length, width and depth share one row (Max Fields Per Row 3, dropping to 1 on phones), radio tiles pick the material and a toggle adds weed membrane. Each material value is the cubic metres one bag holds, so the bag count is Math.ceil(volume / material), and a hidden result line turns that value into the bag price with a short ternary; change the prices there and in the field description together. The results block is flooded with the brand colour with the bag count as the primary line, and the Spec Rows above give the coverage of one bag as a quick check. Keep Column Gap small (16px): it sits between all twelve grid tracks, so a large gap pushes the fields wider than a phone screen.