Question: can bcx plywood be used outdoors?
Answer: Appearance stamps on plywood range from cabinet-grade (A) to construction grade (C and D). Exterior plywood carries an X stamp, which identifies it as suitable for use outdoors. Beside CDX, you can also find better grades, such as ABX, ACX and even BCX. ... T1-11 is an exterior-grade plywood designed for use as siding.