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Protect Your Storage Shed from Flooding

Flooding can be a problem anywhere in the U.S. Whether it’s from rain, melting snow, flooding streams, or a broken pipe, water seems to find a way to flood our basements, garages, and even our storage sheds. We at Storage Sheds Outlet have experienced this personally, with flood waters from melting snow seeping into one of our wood sheds behind our warehouse. Through trial and error, and consultation with experts, we’ve learned a great deal over the years regarding ways to keep unwanted water out of our storage sheds. Here are some of the basics for keeping water out of your storage shed:
  • Finding the right site and preparing the area properly is the best way to avoid water problems in the future. Placing your shed at the base of a hill is typically not a good idea. Rain water can run down the hill and into your shed. Where possible find a slightly elevated location where the ground is flat and stable to locate your storage shed. Also, be careful not to place your shed too close to streams or ponds. As well, try not to place the storage shed too close to the side of your home. Water run-off from the roof could flood your shed.
  • If you’re building on a cement slab be certain to elevate the slab 3” to 6” above grade, and provide a very slight slant to your slab (typically front to back). Ideally, you’ll also want to dig a small trench around the edge of the slab and place crushed stone to help with drainage around your foundation.
  • If you’re building a floating wood shed, typically the shed is placed on 4x4 treated timbers; you’ll want to create a foundation of crushed stone. We did this with our shed behind our warehouse. We brought in a few yards of stone that we formed into a flat surface that is about 4” above grade. The stone also extends about 4” beyond the size of our shed on all sides. This keeps the floor of the shed above grade level, and the stone is great for leaching away any water. This same principle can work for a plastic shed , vinyl shed , or metal shed. if you’re purchasing it with the foundation kit.
  • Another option for a great foundation for your shed to avoid water problems is to build a wood platform. Use pressure treated wood and place it on a flat area around your property. If possible, place crushed stone under the platform as noted above.
  • One of the absolute best ways to avoid flooding in your storage shed is to place a drainage system around the outside of the shed. This is done by digging an 8” to 16” ditch around the outside edge of the shed, placing PVC piping with small holes in the PVC (you can purchase it this way). Dig the trench on a slight pitch so the water will run off in one direction through the PVC pipes (ideally from front to back of your shed). You will have to do this for both sides of the shed. Then on both back corners of the shed have solid drainage pipes running down hill and away from the shed. You’ll want the pipes to end up in a location where the water can safely run out of the pipes and away from your shed or any other structures. Then place crushed stone on the top of the PVC piping around the shed. This will allow the water to drain into the pipes and safely away.

Regardless of the type of shed you are purchasing, it will be important that you find the right location to avoid water concerns, and then place it on a good foundation with some type of drainage around the entire perimeter of the shed. If you’d like further assistance with ideas for avoiding floods in your storage sheds, call us toll free at Storage Sheds Outlet at 1-877-689-0730.