Ok so it has been quiet on here lately so I thought I would post some questions and photo's to get everyone going again. Here is my current job details: Homeowner would like small retaining walls built to increase the aesthetics and functionality of the space. Homeowner tried with limited to no success to excavate and wall up the area a few seasons ago. My proposal included a standard versa-lok block system with pins and caps. One wall about 45" tall on the left and a shorter 21" wall on the right. I chose the versa-lok not because of the look but more of the sheer weight and functionality of the stone. I also proposed a small 174 sq ft paver patio out of belgard dublin cobble. I have layed a fair share of shorter garden walls and have also done very large walls with required multiple pulls of geogrid. I am just not sure about the small size of this wall and this particular application. I always use 1' of clean stone with perf pipe, and seperation fabric but: 1. I am still in the planning phase of this job but was wondering with heavy clay soil should I use geogrid in this application? 2. If I should use geogrid should I do it every other course? 3. What is the industry standard for walls of this size? At what height do you start to consider the geogrid? Please advise.