CDX is a low or average grade exterior plywood material: The letters C and D represent the grade quality of the wood on both the front and back sides, and the X represents that it is an exterior grade wood suitable for outdoor purposes and resistant to water damage as the glues invloved in making the plywood will not be adversly impacted my exposure to water.
Luan Wood Video Series
Bending Luan Wood Video
Installing Luan Wood Video
Cutting and Installing Vinyl Over Luan
Installing Luan Over Subfloor
Laying laminate over Subfloor
Making Tile Flush With Subfloor
Attaching Luan To Subfloor
Working With Luan For Do It Yourselfers
What is EXT Plywood?
EXT Plywood is Simply Exterior Plywood Grades.
Exterior Plywood (EXT) is intended for use in projects with no structural requirements, exterior applications where a high quality finish is required. A bonded exterior plywood must be used for applications involving long term full exposure. All A bonded, exterior plywood should be treated against fungal attack and should be surface finished to minimize surface checking