The 8 Best Flood Barriers
We spent 26 hours on research, videography, and editing, to review the top choices for this wiki. If there is one thing nobody wants in their home or business, it's flood damage. But instead of keeping a wall of sandbags surrounding your home at all times, just keep one of the products from this selection tucked away and ready for quick deployment if a deluge ever threatens. In the best-case scenario, you'll never have to use one, but it's always better to be prepared. When users buy our independently chosen editorial picks, we may earn commissions to support our work. Skip to the best flood barrier on Amazon.
8. New Pig Corporation Pig Sock
A New Pig Corporation Pig Sock features an absorbent polypropylene skin and a fine-grade vermiculite filler that absorbs all sorts of liquids. It can be used as a flood barrier by a door or to prevent the spread of spilled oil, chemicals, fuel, and more.
- twelve units per order
- reinforced stitching
- very slow drying time
|Brand||New Pig Corporation|
|Rating||3.5 / 5.0|
7. Snake Self-Fill Sandbag
The Snake Self-Fill Sandbag requires approximately 22 pounds of sand to be properly filled. It can be easily maneuvered and manipulated to conform to the shape of a walkway, a door frame, or many other features of your home or business.
- made in the united states
- rugged cordura nylon
- slows but won't stop a deluge
|Rating||3.5 / 5.0|
6. Praetorian Disaster Supply HydroSnake
The Praetorian Disaster Supply HydroSnake first absorbs more than 500 times its own weight in water thanks to the polymers used in its construction, and then creates such a solid, stable barrier that it can divert hundreds of rushing gallons per minute.
- good passive indoor leak protection
- flexible sectional design
- shorter than most similar products
|Brand||Praetorian Disaster Sup|
|Rating||4.1 / 5.0|
5. M-D Building Products
The M-D Building Products garage door threshold kit helps create a permanent barrier between the inside of your garage and all the threats from the outside world, including insects, drafts, and flood waters, too. DIY installation is quick and easy.
- makes garage more energy efficient
- backed by lifetime warranty
- comes with poor adhesive
|Brand||M-D Building Products|
|Rating||3.9 / 5.0|
4. FloodSax FS20R Instant
A twenty-pack of FloodSax FS20R Instant self-inflating "sandbags" is not a cheap investment, but when you're considering products that might prevent your home or business from being inundated with water, it's no time to be thrifty.
- absorbent polymer crystals
- bags weigh just 1 pound when dry
- biodegradable materials
|Rating||4.3 / 5.0|
3. HydraSorber Sandless Sandbags
The HydraSorber Sandless Sandbags self-inflate by absorbing water. Their eleven-foot length makes them ideal for preventing water from breaching the frame of a sliding glass door or for preventing water from flowing under the door of a garage.
- fully inflate in three minutes
- environmentally safe and disposable
- good price point
|Rating||4.5 / 5.0|
2. Watershed Innovations Hydra Barrier
The Watershed Innovations Hydra Barrier actually uses water to keep flooding at bay. This extra-long tube can be loaded with dozens of gallons to create a barrier that measures 24 feet long and weighs an impressive 400-plus pounds.
- durable vinyl material
- lightweight when empty
- well-reviewed by users
|Rating||4.9 / 5.0|
1. Quick Dam
This Quick Dam water-activated barrier can be packed away in a box or on a shelf when not needed, yet expands to measure 17 feet in length and stands 3.5 inches high in a matter of minutes after exposure to water. It's perfect for patios, driveways, and more.
- highly flexible design
- can be used to prevent erosion
- can be reused many times
|Rating||4.8 / 5.0|