Sod Calculator
Sod is sold by the roll and delivered by the pallet, so this turns a lawn area into both. Measure a plain rectangle, or break an awkward yard into rectangles, a triangle and a circle and take the beds and paths back off, then set the roll size and the rolls per pallet your supplier actually uses. It adds a waste allowance, which matters far more on a curved lawn than on a rectangle because every edge piece has to be cut, and it compares buying loose rolls against buying whole pallets. A third mode works the other way and tells you how much lawn the pallets already on order will lay.