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Old 11-22-2009, 04:10 PM   #1
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Fixing low spot on subfloor

DYI gurus,

I am planning to install BR111 Triangulo 3/8" engineered hardwood using staple down installation. After I ripped up my carpet and the padding I noticed that the subfloor is now about 1" lower than the tile floor in the kitchen, dining and bathroom.

I plan on adding height by laying down 23/32" plywood using ring shank nails.

I noticed however, that there is a low spot located along a hallway where the lowest spot is about 3/4". The total length of the low spot is about 5" long slowly dipping to its lowest at 3/4" at around 2 1/2 feet.

How can I solve this problem? I don't think I can raise the current subfloor in that area because there is wall structure on both sides.

Thanks for any help on this.


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Old 11-22-2009, 04:51 PM   #2
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it may be possible to trowel on a floor leveler to bring the existing subfloor up to the proper level and then lay your new underlayment over top. It may take several applications depending on the product you use.


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Old 11-22-2009, 05:00 PM   #3
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Would there be an issue if I nail ring shank nails that I will use to attach the new plywood underlayment through the floor leveler compound into the existing plywood?

If I used a leveling compound, what would be the recommended way of attaching the new plywood underlayment onto the leveling compound?

Last edited by JoseB; 11-22-2009 at 05:05 PM.
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