RR=Railroaded pattern. If a fabric is 54" wide and you want a drapery that is 108" long, there will be a horizontal seam in the drape every 54 inches. Therefore, fabrics with the pattern railroaded are used for upholstery, valances, cornices, pillows and table covers, etc. but not for draperies.

Minimum purchase for most patterns 3 yards. Occasional patterns require a 15 yard minimum purchase. Fabrics are 54" wide unless otherwise stated.