Direct Answer
Roof decking (sheathing) replacement is priced per sheet of OSB or plywood replaced. The total depends on how many sheets are rotten or soft, accessibility, and whether it's done during a full tear-off (cheaper) or as a standalone repair. We inspect during tear-off and quote before replacing any sheets.
Decking is the wood panels under your shingles. When it rots from leaks or poor ventilation, it has to be replaced so the roof has a solid base.
Cost Factors
- Number of damaged sheets
- Done during a full replacement (roof already open) vs. standalone repair
- Roof pitch and accessibility
- Whether the moisture cause also needs fixing
When to Call a Roofer
Soft spots, sagging, or visible rot in the attic mean decking needs attention. During any replacement we inspect every sheet — we only replace what's actually bad.
How Beyond the Ladder Handles It
We replace only the decking that's compromised and fix the moisture source so the new wood stays solid.
Related Questions
How do I know how many sheets of decking need replacing?
You don't until the roof is open. We inspect every sheet during tear-off and quote the replacement before doing it — no surprise add-ons.
Is decking replacement included in a roof replacement quote?
We quote decking per sheet as it's found during tear-off, since you can't see it until the old roof is off. We agree on the per-sheet price upfront so there are no surprises.