[OCCRA]: border for vex field?

Is there a 2x2 border around the vex table keeping the robots from falling off at the back and sides so that the only opening is where the field goal is and baskets, and if there is how thick is the wood?

The field base is 3/4 plywood with a 2 x 4 frame under it with cross ribs for support. The surface is the carpet as outlined in the drawing sent to your coach. There is a 2 x 2 border around the top of the field to attempt to keep the robots on the field. The border is 100% around the field ( I will double check with the crew making the fields).

The location of all tape lines, location for placement of “A”, “B”, “C” and the 2 x 2 barriers are clearly marked on the drawing provided.