Husqvarna viking double welt cord foot cat 5 the double welt cord foot is used to make trim to cover raw edges in place of braid or trim on your upholstery and home dec projects or as a decorative touch on pillows cushions and other home accessories create any colour of trim when the colour you need is not readily available additional information1 purchase 14 6 mm cotton filler cord at least two times the length of the finished length of double welt trim 2 cut bias strip wide enoug