Cable cast on: firm edges and mid-row stitches

The cable cast on makes each new stitch by pulling a loop through the gap between the first two stitches on the left needle. It gives a firm, neat edge. It needs no long tail, so it is also the usual way to add stitches mid-row, for example at buttonholes and underarms. Other methods are in how to cast on.

How to work the cable cast on

1. Make a slip knot and put it on the left needle.

2. Knit into the slip knot and place the new loop on the left needle. You now have 2 stitches.

3. Insert the right needle from the front into the gap between the first two stitches on the left needle.

4. Wrap the yarn as for a knit stitch and pull a loop through the gap.

5. Hold the needle tips together and move the loop onto the left needle without twisting it.

6. Repeat steps 3 to 5 until you have the number of stitches you need.

Keep the cast on loose. If it is tight, the first row is hard to work. Relax your tension, or cast on over a larger needle.

Adding stitches mid-row

Work to the place where the new stitches go and turn the work so the wrong side faces you. Cast on the stitches as in steps 3 to 6. Turn back and continue the row. It works the same way in the round.

When to use it

Use it for firm edges that hold their shape, such as button bands, bag openings and hems, and where you will pick up stitches later. A pattern that says "cast on 8 sts at the beginning of the row" usually means this or the simpler knitted cast on. For edges that must stretch, such as sock cuffs and hat brims, use a stretchy cast on such as the German twisted cast on.

Common mistakes

• Twisting the loop as you move it to the left needle. A deliberately twisted version also exists and is a little firmer. Use one version for the whole edge, or it looks uneven.

• A rounded last corner. Cast on one extra stitch and work k2tog at the start of the first row.

• Losing count. On long cast ons, place a marker every 10 or 20 stitches.