We needed a product that not only kept things in, kept other things out, not interfere with drainage, and of course look good. With 5" to work with, we had plenty of material underground keeping out roots we want outside of the bed and plenty of material keeping in roots we want staying inside the bed... perfect. The material quality of this product is surprisingly strong but, not so strong to resist shaping... which is important to landscaping. The stakes that come with this product hold up to be in hammered and do a wonderful job holding the panel edge in place. The the suggested spacing of the stakes are every 4' which, each one of these packages come with enough steaks for the amount of feet you're purchasing per roll.