The primary operation of warp-making in which ends withdrawn from a warping creel, evenly spaced in sheet form, are wound on to a beam to substantial length (usually a multiple of the loom warp length). (See also direct warping.) Note 1: Several similar beams (termed a set of back beams) of the same length provide the total number of ends required in the warps to be made. Note 2: The sheets from a set of back beams are usually run together as one sheet on to a succession of weaver's beams as an integral part of the sizing operation. Alternatively, the weaver's beams may be assembled from the back beams by dry taping. Note 3: Beaming is suitable primarily for bulk production of grey warp. Fancy warps may be produced by arranging the colour sequence of the ends evenly throughout the set of back beams.