Empty Polypropylene Sandbags - 18" x 30" (UV Resistant)

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Stop Erosion and Protect Property with 18” x 30” Polypropylene Sandbags Sandbaggy’s 18” x 30” Polypropylene Sandbags are a durable and reliable solution for flood control, erosion management, and construction needs. With over 10 million sold and 2 million sandbags in stock at all times, Sandbaggy has earned the trust of the U.S. Army, Red Cross, and countless professionals. Designed for heavy-duty applications, these sandbags hold up to 100 lbs, making them ideal for large-scale projects. Their larger size, superior UV resistance, and photodegradable features set them apart as a top choice for homeowners, contractors, and environmental professionals alike. Specs Dimensions: 18 inches x 30 inches Weight Capacity: 75-100 lbs Material: Woven polypropylene UV Protection: 1600 hours (3-6 months under direct sunlight) Weave Count: 10x10 for enhanced durability Color: White Features Heavy-Duty Construction: Built from tough woven polypropylene, these sandbags are tested to withstand at least 10 drops from 4 feet when filled with 40 lbs of material. UV Resistance: With 1600 hours of UV protection, these sandbags last 3-6 months in hot climates and up to 24 months in cooler, less sunny areas. Photodegradable Material: Designed to degrade under sunlight over time, reducing environmental impact. Pre-Attached Tie Strings: Secure the bags quickly and easily with pre-attached strings, ensuring reliable closure after filling. Large Capacity: Holds 2-3 times more material than standard 14” x 26” sandbags, saving time and resources for large projects. Applications Flood Control: Prevent water intrusion during storms and hurricanes by creating durable barriers. Erosion Management: Stabilize slopes, riverbanks, and embankments to reduce soil displacement. Pipeline Construction: Secure pipelines and prevent movement or damage during installation. Temporary Fencing: Anchor fences and signs securely at construction sites or events. Earthbag Home Construction: Ideal for building strong, sustainable structures with sandbag techniques. Storage: Safely store dry goods like chemicals, pet food, grains, and fertilizers. How These Sandbags Work Rainwater and runoff can cause significant damage to unprotected areas. Sandbaggy’s 18” x 30” sandbags act as a barrier that absorbs and redirects water flow, protecting property and infrastructure. For erosion control, the bags’ tight weave and high capacity ensure stability on slopes and embankments. How to Use Filling: Fill each sandbag halfway to two-thirds full with sand, gravel, or soil. Overfilling may reduce effectiveness. Placement: Place the sandbags in a staggered, brick-like pattern for maximum stability. Walk on filled sandbags to create a tight seal between layers. Storage: Store unused sandbags in a cool, dry place to prolong lifespan. Customer Success Stories Check out real photos and videos from customers who’ve put our Ultra Heavy Duty Sandbags to the test. Click any image to read their full review! FAQ What is the difference between 14" x 26" and 18" x 30" sandbags? The 18” x 30” bags hold 2-3 times more material and are only available in white. Both sizes feature 1600 hours of UV protection. How long do these sandbags last? They last 3-6 months in hot climates like California and Florida and up to 24 months in cooler regions. What materials can these sandbags hold? Suitable for sand, gravel, soil, or dry good commodities like chemicals, pet food, grains, fertilizers, and more. Can these sandbags be reused? Yes, they can be reused depending on exposure conditions. Avoid prolonged exposure to extreme sunlight for better longevity. What size sandbag should I buy? Size 14" x 26"sandbags(most popular) 14" x 26" ultraheavy duty sandbags 12" x 38"tube sandbags 18" x 30"sandbags 25" x 40"sandbags 31" x 45"sandbags 35"L x 35"W x 50"Hbulk bags 80" x 80"poly sheets How to fill it Sandbag filler UV Protection 3-6 months 7-15 months 6-9 months 3-6 months None None 6-12 months None Weight capacity 50 lbs 100 lbs 90 lbs 50 lbs 50 lbs 100 lbs 2,000 lbs N/A What to put in it sand gravel sand sand gravel materials food materials food materials garbage compost sand debris gravel garbage grass clippings leaves branches twigs Purpose flood control erosion control military fortification(green color) earthbag homes flood control erosion control military fortification earthbag homes inlet protection flood protection sediment control on hills/slopes securing plastic sheeting flood control erosion control storage earthbag homes storage storage trash bags storage hauling materials collect green waste Ties included Yes Yes Yes Yes No No Yes (corner straps) No Color(s) White Green Beige Orange Black White White White White White White Show more