What is the best thickness for a glass table top?

The best thickness for a glass table top depends on usage. If the glass is used just as a cover, then ¼-inch thick glass is likely good enough. If the glass will be used is as a table surface, then you should choose the thickness of the glass according to the size of the table. If the glass used is supporting heavy items, or its size is more than 24 inches, then choose glass that is thicker than ¼ inch. Thicker glass will feel and look more substantial, but thicker glass becomes heavier with increasing size. On 1stDibs, find antique and vintage glass-top dining room tables, glass-top coffee tables, side tables and more.