jenkinsph
Super Star Member
I am sure it varies by locale but in my area engineered fill runs about $8/yd. Might wan't to ask your concrete guy what works best in your area. I would go with a maximum of 6" lifts, when building my pad which was almost 5' on one corner I went with closer to 3" lifts and used a vibratory roller pictured below. I also built a retaining wall for this pad since it was so high that is not pictured.