Final answer:
The primary method of joining FRP, 16" and smaller, is the Adhesive and Screw. This method allows for a strong and durable joint.
Step-by-step explanation:
The primary method of joining FRP, 16" and smaller, is the Adhesive and Screw. Adhesive is used to bond the FRP (Fiber Reinforced Polymer) components together, and screws are used to provide mechanical reinforcement and ensure a secure connection. This method allows for a strong and durable joint.