What type of wood should be used when splicing or reinforcing plywood webs?

• A. Any plywood type available.
• B. Composite board.
• C. The same type of plywood as originally used.
• D. The different species of wood.

Answer: (C)

Using the same type of plywood as originally used ensures consistent strength and load transfer in a repaired or reinforced plywood web. When you splice or reinforce, the stiffness, shear resistance, and glue bond must match the surrounding material so loads are carried evenly and the splice behaves like the rest of the web. A different plywood type or species can have different thickness, grain orientation, and adhesive characteristics, creating a mismatch that can lead to weak points, delamination, or failure at the splice. Composite boards aren’t a substitute for plywood in structural reinforcement, and using any plywood type or a different species would disrupt the structural integrity, which is why the same plywood as originally used is the correct choice.