An extra allowance of 3/4 in. to the ft. each way, must be made for fulness in cutting the tick top, if the mattress is to have a tufted top and welted or bound border. The diamonds may be 12 to 14 in. long and the tufts 6 in. from the edges, the border being cut to exact size and somewhat tight all round, a small plait opposite each outside tuft allowing the top to come into the border.