Lateral Support System is a program designed to calculate the depth and section modulus of cantilever sheet piling systems. The program uses common or simplified methods of analysis. The program allows up to two soil types and multiple water depths. Calculations are generated for penetration into sand or clay, each with granular backfill. The program is flexible and offers many definable user options. "What if&quot\; scenarios are quickly and easily calculated. The program generates a plot of the calculated data and a written report.