Knitted Fabric: Loops, Courses and Wales

Understand knitted fabric, courses and wales, the basic difference between weft and warp knitting, and how knitting differs from weaving.

Knitted fabric is made by intermeshing loops of yarn. The connected loops form the textile, distinguishing knitting from the crossing yarn systems of woven fabric. Needles form the loops during machine knitting. CottonWorks definition · Cotton Council knitting explanation

Courses and wales

A course is a crosswise row of loops. A wale is a lengthwise column of loops. They describe the arrangement in the fabric; they are not two separate yarn systems equivalent to woven warp and weft. CottonWorks loop directions · Cotton Council terminology

Term	Basic meaning
Loop	A curved yarn element
Course	A crosswise row of loops
Wale	A lengthwise column of loops

For a hypothetical swatch laid flat, following a row across its width follows a course; following a column along its length follows a wale. This explains direction without specifying a stitch density or machine setting.

Weft knitting and warp knitting

In weft knitting, yarn forms loops successively across a row. Circular and flat-bed machines are familiar ways to produce these structures. In warp knitting, a set of lengthwise yarns forms connected loops, with yarn paths extending along the fabric and between neighbouring columns. CottonWorks principal arrangements · Woolmark warp and weft knitting

Warp knitting is still a loop-forming process. The word warp does not make the fabric woven, and weft knitting does not mean a separate filling yarn is being interlaced through a woven warp. Distinguish the yarn path from the method of joining the yarns.

Loop structure and machine parts

The yarn loops make up the fabric; needles and supporting machine parts form and control them. Groz-Beckert describes sinkers and holding-down jacks with roles in the loop-formation process. These are machine components, rather than constituents left in the finished textile. Groz-Beckert component descriptions

Structure does not specify every property

CottonWorks relates knit flexibility to the movement of intermeshed loops. That explanation does not give every knitted fabric the same stretch, recovery or durability. The construction label alone supplies no tested value and does not replace a material specification. CottonWorks knit properties

This page explains the structure and principal arrangements. It does not define a machine gauge, specify yarn feed or select fabric for a garment. The fabrics knowledge section provides the main reading entry.