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Question DetailsAsked on 9/3/2014

How much should it cost to replace a subfloor?

The old subfloor is particle board. I want to replace it with plywood. The area involved is about 400 square feet.

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3 Answers


Depends greatly on the specific site conditions, and especially on whether the subfloor is a full glue-down composite beam system, which would mean the floor joists/beams would have to be propped up during the new subfloor gluedown and curing time. These systems are pretty rare and relatively modern, so rarely encountered on a subfloor replacement issue.

Ballpark - around $10/SF for normal tearout and replacement, but can go to $20/SF or more if has to be run in under the walls to provide structural support required by loadings.

A blow-and-go contractor or handyman might charge half that, if you trust them to do it right with correct materials, lay direction, fastening and joint gapping.

One additional recommendation - have it glued to the joists to prevent future floor squeeking - additional cost is not much.

Answered 5 years ago by LCD


I want replace subfloor and replace with plywood floors. What is the cost for that project?

Answered 4 years ago by Jesus111


At the very least expect to pay $3,200 ($8 per square foot). View our Subfloor Cost Guide here to see updated Subfloor prices.


Answered 1 year ago by conorlee

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