🪵 Plywood vs OSB: Which Should You Use?
Both plywood and OSB (Oriented Strand Board) are used for roof decking. But which is better? This guide compares cost, strength, moisture resistance, and code requirements.
Key Differences
| Factor | Plywood | OSB |
|---|---|---|
| Cost | Higher | Cheaper |
| Moisture | Dries faster, less swelling | Swells if wet |
| Strength | Better nail holding | Comparable for shear strength |
➡ If cost is critical, OSB wins. ➡ If durability and moisture handling matter, plywood is better. ➡ Use our Plywood Calculator Guide to estimate sheet counts.