Glass Table Top: 20" Round, 1/4" Thick, Flat Edge, Tempered Glass Glass table tops to be used as glass tops or glass covers for existing table or base 20'' Inch Round Glass Table Top with 20'' Inch Diameter(1/8") This 20'' glass top has a flat polished edge Glass table tops tempered for added strength Round Glass table tops available in many sizes including: 12", 14", 16", 18", 20", 22", 23", 24", 25", 26", 27", 28", 29", 30", 31", 32", 33", 34", 36", 37", 38", 39", 40", 42", 44", 46", 48", 54", 56", 60", 72"