Fair linens, the top linen placed on the altar, are crucial liturgical items. According to Percy Dearmer, a renowned liturgical furnishing author, fair linens should be the exact width of the altar and extend within six inches from the ground on the sides. The linen should be good quality, hemmed, and bear one, four, or five devices in white, red, or blue. Modern recommendations suggest the fair linen’s length should match the superfrontal’s, often 9 to 12 inches. Working with 100% linen, mitering corners, and adding crosses can create a durable, elegant fair linen for the altar.