A trench at least 12 inches wide and 18 to 24 inches deep.
French drain depth around house.
Recommended depths can range from about 18 inches to 6 feet.
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The width and depth of the drain you dig will depend on the severity of the drainage problem and the digging tool you re using.
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You can do the work yourself or hire a professional landscape contractor to do the job.
Parts of a french drain.
The depth of the french drain depends on the purpose for using it and the location.
About 8 inches to 2 feet deep should be sufficient for many water diverting projects though related systems such as those built around foundations and sub ground living spaces as well as the bases of retaining walls may be deeper.
Larger trenches provide better drainage and last longer but require more work.
Section q r will be very steep just like section j k to achieve a 20 trench depth at the house.
But a french drain is a simple ditch in the ground.
However most standard french drains are approximately 6 wide and 18 to 24 deep.
Use shovel to dig a 6 wide trench with a depth no greater than that of the nearest foundation image 1.
And aim for a depth between.
Expert advice from bob vila the most trusted name in home improvement home remodeling home repair and diy.
A french drain pipe can help divert water away from your home s foundation patio or low lying areas to help prevent damage or pooling water.