When you encounter a typical artificial turf installation and the turf edge is open or has a ‘soft edge’, like when terminating to a planter. Because of its height the Standard works like a small border wall to prevent plant material such as mulch, rock, and soil from collecting onto the turf.  The LP is commonly used when the need is: a lower edge, a glued down perimeter with no trip hazard, more flexibility, a tighter radius.