What grade of Geocell do I need on a slope?

Generally, for slopes up to 30 degrees, grades 35/10 & 35/15 are recommended. For slopes between 30 and 45 degrees, grades 25/10, 25/15, 22/20 are suitable options. Additionally, with the recent addition of Terram HDPE Geocell to our product range, you can also consider the Terram HDPE Geocell option. Please see the Terram Geocell erosion control SDI (specification, design, and installation) guide for more details.