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Old 02-28-2013, 01:11 PM   #1
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Question about filling voids in sub-floor


I am installing vinyl planks on top of the plywood floor and, I have some spots in the plywood that are splintered...What do I use to fill this in with?

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Old 02-28-2013, 02:56 PM   #2
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Question about filling voids in sub-floor


A cementious based floor filler(not gypsum based) available at most home centers. Just mix the powder with water and smoothly apply with a drywall knife.

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Old 02-28-2013, 03:12 PM   #3
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Question about filling voids in sub-floor


mom2ary,

Sounds like you're laying over the subfloor. Please tell us how thick this is and what's under it. What vinyl are you using?

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Old 02-28-2013, 03:43 PM   #4
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Question about filling voids in sub-floor


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Originally Posted by mom2ary View Post
I am installing vinyl planks on top of the plywood floor and, I have some spots in the plywood that are splintered...What do I use to fill this in with?

Anything on the link i'll attach will work just fine.

https://www.google.com/#hl=en&q=elme...iw=893&bih=385
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Old 02-28-2013, 03:48 PM   #5
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Question about filling voids in sub-floor


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Originally Posted by Canarywood1 View Post
Anything on the link i'll attach will work just fine.

https://www.google.com/#hl=en&q=elme...iw=893&bih=385
That would be expensive and what I suggested will work fine. I have installed and taught installation for many years.
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Old 02-28-2013, 10:08 PM   #6
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Question about filling voids in sub-floor


Yea, those Elmer products aren't for this, they're for tiny repairs. Like heating a room with Bic lighters.

But I have a feeling "mom" is going over a subfloor which would be a big mistake.

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Old 02-28-2013, 10:15 PM   #7
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Question about filling voids in sub-floor


I would at least go over the whole floor with 1/4 underlayment rated subflooring making sure to not have the seams line up with the seams below, do not fasten it to the floor joist.
No glue is to be used.
Fasten every 4" on the edges and from 6 to 8" in the field.
If you use a narrow crown pneumatic staple gun and 1-1/4 staples you do not have to go back and fill where all the nail heads are just the seam.

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