How Thick to Apply Floor Leveling Compound to a Subfloor

How thick a layer of self-leveling floor compound can you pour on a subfloor to level it? -Jack

Hi Jack,

It depend on the particular floor leveling product you’re using, but most manufacturers recommend that you apply no more than 1/8” thick coat of self-leveling or floor patch compound at a time. However, you can apply several thin layers of the compound, if you allow each to set the recommended time, to increase the thickness gradually up to 1/2” thick.

Be sure to read the application instructions for your particular floor compound to find out more.

Good luck with your project,


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One Comment on “How Thick to Apply Floor Leveling Compound to a Subfloor”

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  • Paul Spurlock Says:
    April 21st, 2012 at 10:34 am

    The Ardex line of self leveling floor compounds range include up to a depth of 5 in. with the addition of appropriate aggregate.

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How Thick to Apply Floor Leveling Compound to a Subfloor