I would like to replace (or add additional layers) to the current sub-floor on on the 2nd floor of my house to reduce or elimate the flex of the floor.
The subfloor is current particle board covered with rug. Once repaired, the floor will be covered with rugs also.
I am not as concerned with the amount of work involved as much as I am with doing the right job.
As I see it it have the following choices..
1) add a layer of plywood on top of the particle board (not sure of the thinkness I should use
2) Rip up the particle board and replace the subfloor with 3/4" inch plywood.
3) Rip up the particle board and replace the subfloor with 2 layers of plywood - possibly with two 3/8" layers
Which would be the correct way to correct the problem?
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