How to lay site-finished hardwood over old vinyl and bare subfloor?


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Old 02-21-22, 08:13 AM
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How to lay site-finished hardwood over old vinyl and bare subfloor?

I have old vinyl, very old, and glued to the original subfloor in the kitchen but not the bedroom. I'd like to run hardwood across both flooring but their is ~1/8" height different. How should I go about this? Removing the old vinyl may not really be possible, but is their an underlayment I could put down in the bedroom that would even out the subfloor or should I just slap 3/4" over everything?
https://imgur.com/a/6BznWpq

Thank you!
 
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Old 02-21-22, 08:22 AM
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What type of flooring are you installing?

How thick is your plank flooring?

One problem is that the planks are probably perpendicular to the floor joists which is the same direction you would be laying most nail down flooring!
 
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Old 02-21-22, 08:27 AM
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Plank sub-floorings is 1x4" (I believe true 1") tongue and groove. We would lay site finished oak 1x4" perpendicular to the current plank subfloor.
 
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Old 02-21-22, 09:47 AM
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Vinyl is usually laid on underlayment. But if the vinyl really is glued directly to the old plank floor, you would want to put a long straight edge through the doorway (like a 78" level) and see what height you are dealing with... you might be able to just shim it, or taper it gradually with some floor patch.

I agree you would probably want to lay parallel to the current flooring so that the new floor is also perpendicular to the joists.
 
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Old 02-21-22, 12:21 PM
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What if i laid down something like this to bring the surfaces even.
https://www.homedepot.com/p/FloorMuf...4049/204077418
 
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Old 02-21-22, 02:50 PM
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Might working the lower floor, but you still need to check your subfloor with a straight edge, looking for any dips or humps that are more than 1/8". Underlayment is just going to follow the floor, and won't help with dips and humps.
 
 

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