Amazon.com, The Home Depot, Walmart.com and Ace Hardware sell sandbags as of 2015. Each retailer sells different styles of sandbags, and the type of sandbag needed depends on the scope of the project or situation. Frequency of use and desired longevity should determine the appropriate type of sandbag.
Plastic sandbags are durable, lightweight when empty, and good for use in flood control. They are not biodegradable but are puncture-resistant and keep out moisture. Classic burlap sandbags are eco-friendly and can also be used for other purposes, such as storing wheat or flour. Nylon sandbags are extremely durable with double-stitched seams and urethane coating. DuraBag sandbags are popular in construction, particularly road construction, as they are highly resistant to being run over by a vehicle.