Subfloor replacement material recomendation...

[vbtalent]

I'm getting ready to do some subflooring work on our unit, and I wanted to know what the opinions are for using OSB vs Plywood in Florida locations?

Should I be concerned about using OSB, a less expensive product vs Plytanium plywood?

Any suggestion or opinions would be appreciated.

Thanks,
VB,

[achedeep]

I'm getting ready to do some subflooring work on our unit, and I wanted to know what the opinions are for using OSB vs Plywood in Florida locations?

Should I be concerned about using OSB, a less expensive product vs Plytanium plywood?

Any suggestion or opinions would be appreciated.

Thanks,
VB,

In my experience, shimming the beams can help if they’ve just sagged a bit, but it’s really only a temporary fix unless the root cause is addressed. If the joists or beams are rotted, poorly supported, or the ground has shifted, you could end up back in the same spot. I’d recommend first checking for any moisture/rot issues and proper support posts, then deciding whether a more permanent repair is needed.

[BeauBonwick]

I remember facing a similar dilemma when replacing the subfloor in my sunroom a few years back. Living near the coast, humidity was a huge factor. I initially leaned towards OSB to save money, but after researching and talking to a contractor, I opted for plywood specifically treated for moisture resistance. It was a bit pricier, but the peace of mind knowing it could better withstand potential water damage was worth it in the long run. Avoiding warping and rot saved me from future headaches. If you need something to unwind after all that work, consider giving tiny fishing a try.

[shimmering]

I'm getting ready to do some subflooring work on our unit, and I wanted to know what the opinions are for using OSB vs Plywood in Florida locations?

Should I be concerned about using OSB, a less expensive product vs Plytanium plywood?

Any suggestion or opinions would be appreciated.

Thanks,
VB,

From what I’ve seen working in humid areas, OSB can be fine structurally, but Florida’s moisture and humidity are where the differences really show up. OSB tends to swell more and takes longer to dry out if it gets wet, which can lead to soft spots over time, especially if there’s ever a leak or high humidity exposure. Plywood, like Plytanium, usually handles moisture better and dries faster, so it holds its shape and strength more reliably in the long run.