Cut four pieces of plywood to measure 24 inches square with the table saw.
Connect two pieces together at the edges at a right angle with the wood glue. Clamp the pieces and let the glue dry for two hours. Hammer in brads to secure the connection. Repeat with all squares to create the box-shaped pedestal for the dining table.
Cut an 8-foot by 3-foot piece of plywood with the table saw for the dining tabletop.
Center the tabletop over the pedestal. Hammer brads through the table top to connect the top to the pedestal. Cover the brads with wood putty, smooth it with a damp finger and let the putty dry for one hour.
Sand the entire table thoroughly with the sandpaper. Paint with primer or stain and let dry for two hours.
Apply two coats each of acrylic sealer or acrylic paint and sealer, letting each coat dry for two hours.