At Royal Materials, we believe ordering landscape supplies should be simple, accurate, and stress-free. Our Material Quantity Estimator allows you to calculate how much product you’ll need based on your project’s square footage and desired installation depth. Whether you’re working with mulch, gravel, soil blends, stone pebbles or with decomposed granite, this tool helps you estimate the amount in cubic yards and tons, rounded to the nearest 0.5 to reduce risk of under-ordering.