At Kalamazoo Materials Inc., we are committed to providing excellent value to our clients. As an experienced landscape supplies company, we go the extra mile to help clients with the information and details they need about supplies like rip rap, boulders, decorative rock, screened rock and diamond mix, etc. Many outdoor projects are extensive, covering vast areas. It can become challenging for our customers to estimate the right quantities and make the right material choices. Although our team is here to help you with all the necessary information, we have also created this Resources page. Here you will find estimation charts, color and gradation charts, and Credit Application Policies that apply to AZ, CA, and NV clients. These resources can help you get basic information about our materials, how to estimate quantities you need and more. Please call us for details regarding decorative rocks at the numbers listed on this page, depending on your location. Please use this Contact Us form if you prefer to write to us.