What makes sod weight change
Sod weight is driven by three things: total area, the size of each piece or roll, and how wet the soil layer is when the sod is cut, stacked, or delivered. Even when the lawn area stays the same, wetter sod or larger pieces can change the handling weight significantly.
That is why the calculator leads with total pounds, piece count, pallet count, and total tons. Those numbers are more useful for transport planning than area alone, especially when you are deciding whether to collect sod yourself or have it delivered by the supplier.
Total weight = Lawn area x Weight per sq ft
The weight-per-square-foot assumption changes with the selected moisture level.