Your landscape blocks can easily make a wall up to 6 feet high (3 courses).  once you get past that height you will want to use site specific engineering that will specify the geogrid layout and installation.  Below please find our general Landscape Block Engineering.

For more detailed engineering we are proud to be working with Jon Aamodt of Northland Cosulting Engineers who is able to provide specific engineering details for your job.  Please feel free to call him at 218-727-5995 to discuss your wall layout.