Secure the table top to the leg assemblies with deck screws. The table top is aligned so that there are 3 inches overhang on all four sides.
To attach, I put 3 screws through the plywood tabletop into each leg brace. 9 screws total.
Next, I glued the particle board tabletop to the plywood tabletop with wood glue. I made sure there was enough glue near the edges. I clamped the two pieces together and used some weights on top to dry.
Finally, I put two more screws through the entire tabletop into each leg brace. 6 screws total.