Lakeview Materials & Trucking - Playground Materials Lakeview Materials & Trucking carries IPEMA Certified playground mulch and playgroundsand. Washed Sand Playground Chips Calculate how many cubic yards you need Use the calculator below to figure out how many cubic yards of mulch or stone you should order. In general, Lakeview Materials recommends at least 3 inches of mulch or stone in gardens. Please call 603.365.1623 if you are not sure about the quantity of materials you need. One of our experts will be happy to help you. Call us Today!Call us today to schedule your home delivery 603.365.1623