CDX

Definition

CDX is a grading system mark for plywood, indicating it has a grade C and D veneer with exterior glue.

Purpose

CDX plywood is used for construction where durability and exposure to weather are considerations. The C and D grades denote the quality of the veneer faces, while the exterior glue ensures it can withstand moisture.

Examples of Use

1. Roof Sheathing: Providing a durable base layer for roofing materials.
2. Wall Sheathing: Offering structural support and protection for exterior walls.
3. Subflooring: Serving as a stable and moisture-resistant layer beneath finished flooring.

Related Terms

• Plywood: Engineered wood made from thin layers of wood veneer glued together.
• Sheathing: Boards or panels that form the surface of walls, floors, or roofs.
• Exterior Grade: Materials designed to withstand outdoor conditions.

Notes

CDX plywood is commonly used in construction due to its balance of cost, strength, and weather resistance. It should be properly sealed and maintained to extend its lifespan.