I have to level a concrete floor that is more than 2 inches out of level. Should I be using self leveler, or concrete? Is 2" too much for self leveler?

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    Two inches over what span? – Doresoom Apr 18 '11 at 19:34
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    how much more than 2"? – DA01 Apr 18 '11 at 21:06

If it is only 2" you should not be using concrete because it's not thick enough. Concrete does not bond to concrete so it will just crack over time.

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    Well, in fact concrete does bond to concrete but only if the previous layer is clean enough. – sharptooth Nov 8 '11 at 9:10
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    And a bonding agent is used. – The Evil Greebo Nov 16 '11 at 11:46

It may be helpful to make use of a leveler to ensure that all areas have been evenly applied with concrete. Professionals contractors know exactly what to do but if you prefer to do your very own home improvement project, you might try to consider leaving it for a few days for curing and then measure the surface once again to double check if it is even.

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    This answer appears to be advertising. While professional input is appreciated on StackExchange, any advertising or offering of professional services should be limited to profiles. – Chris Cudmore Nov 16 '11 at 13:35
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    I've edited the advertising link out of your answer as the answer itself could be useful. – ChrisF Nov 16 '11 at 14:37

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