The pan shaped cold form sheet piles are much smaller than most other sheet piles and are only intended for short, lightly loaded walls. The pan type sections are often used on drainage ditches, retaining walls on private homes, and golf courses.
The SKL range is specifically designed for the lightest retaining walls. The sections are very light so they can be handled and installed with small equipment. The profile is also only 3.5 inches deep so it can be installed in locations with limited space.
The SKS range is slightly larger than the SKL range. The SKS sheets are very wide so they are excellent for low, long walls where speed of construction is important.