What is CDX Plywood?
By Stefan Gheorghe
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Stefan Gheorghe Founder/CEO
Stefan Gheorghe is the founder and CEO of Homedit.com. In 2008, he launched the platform out of his passion for interior design and home decoration.
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CDX plywood is a type of construction-grade plywood made for exterior use where appearance isn’t critical. It is economical, strong, and moisture-resistant (but not waterproof).
What Does CDX Mean?
- C: Front face veneer with visible knots or defects.
- D: Back face veneer with larger flaws; lowest grade.
- X: Indicates exterior-grade glue, providing limited weather resistance.
Common Uses
- Roof sheathing
- Wall sheathing
- Subfloors
- Covered interior projects (e.g., utility shelves, workbenches)
Key Traits
- Affordable and widely available
- Strong enough for structural use
- Must be covered (e.g., by roofing or siding) – not meant for exposed surfaces