I'm redoing a basement apartment and am putting down laminate flooring. (used to be carpet). It's a concrete floor. Most of it is flat except for one section near one wall. It's about 8' long and maybe 4' wide and dips down about 3" possibly more. I'd planned to just use floor leveler until I looked at the price--$30 for a 50lb bag. I'm guessing it will take 8-10 bags to fill in the dip. Then a thought occurred to me--why not just cut up some treated 2x4's to fill most of the dip and then pour floor leveler over the top of the 2x4's to smooth if off. Would save a lot of money and I can't imagine why it wouldn't work. I'm just looking for a flat enough surface to put the laminate on. It doesn't require the strength of solid concrete. Thoughts?

Had another thought--concrete pavers instead of 2x4's.

Just realized wood probably won't work unless fastened to the concrete because it will float in the leveler.

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