SAME, STRONG MATERIAL AS FLOOD CONTROL SANDBAGS: The durability of polypropylene woven fabric has been tested in severe flooding across this country and has stood the test of time. The same material that protects cities from being inundated with floodwaters is also used to produce Sandbaggy's commercial landscape fabric. STOP WEEDS IN VEGETABLE GARDENS & FLOWER BEDS: Using thick 3 oz fabric tightly woven by industrial grade looms, it makes it much more difficult for weeds to puncture through the fabric. Another side benefit with landscape fabric is that it helps prevent weeds from growing by blocking out the sunlight weeds need to grow. We recommend using our 18 inch wide landscape fabric for gardening applications. KEEP SOIL IN PLACE: Keeps your soil in place and prevents it from being eroded away during a rainstorm. Great for use under mulch or in a greenhouse. Sandbaggy Fabric is trusted by farmers across this country from reforestation farmers in Kooskia, Idaho on the West Coast to bamboo farmers in Lithia Florida on the East Coast LAB TESTED & INSPECTED: Sandbaggy inspects and lab tests landscape fabric to ensure fabric meets tough quality standards using strict ASTM standards. This means that you can rest assured that you are ONLY getting the best fabric! Sandbaggy Polypropylene Landscape Fabric is trusted by landscapers and farmers across this great country! SAFE FOR ORGANIC FARMING: All Sandbaggy fabric is safe for organic farming Nothing will ruin your beautiful garden more than weeds! Sandbaggy 18" Landscape Fabric is trusted by farmers and landscape contractors across this country. Manufactured with durable woven polypropylene, it meets or exceeds DOT standards making it a great heavy duty landscape fabric that can be used under gravel and soil.