Measure the size of the existing table and determine the size of the new table top. Take into consideration the base that supports the table top when deciding on the size of the new top. Avoid enlarging the table top by more than an inch on each side for a table with a single center support system.
Cut the 2-by-4s into the appropriate length to create a wooden box the size of the finished fake kitchen table top. Label each piece. Make sure to leave enough room for the new top to slide over the top of the existing table top.
Assemble the box frame for the new kitchen table top by screwing the left side of the table top to the front of the table top. Move to the right side and screw it to the bottom side. Complete the box by screwing these two L shapes together.
Cut the plywood to fit the top of the box and attach it by screwing through the plywood and into the frame.
Paint or stain the sides of frame.
Paint or stain quarter round and allow it to dry.
Secure the quarter round to the edge of the table top using finishing nails. Counter sink the finishing nails and fill the holes with spackle. Touch up the paint or stain as needed.
Decide on a pattern for the tile or stone selected for the table top. Dry fit the pieces into shape until a final design is determined.
Apply a small amount of thin set and begin placing the tile or stone according to the predetermined pattern. Continue until the plywood is completely covered from view. Allow the thin set to dry according to manufacturer's directions.
Spread the grout over the top of the tile or stone. Use a generous amount and with the trowel, force the grout to fill all gaps between the tile or stone. Wipe away the excess grout with a damp sponge.