A lacet, sometimes called a fancy stitch, is a type of filet crochet stitch that looks like a V. To filet crochet a lacet, you work it across five stitches or the width of two spaces. (The last stitch that completes the block is really the first stitch of the next space or block.)
Work a double crochet (dc).
This step is similar to what you do to create a regular block or space.
Chain (ch) 3 and skip the next 2 stitches.
This will be the beginning of your first row.
Single crochet (sc) in the next stitch.
If you’re working the lacet over a bar, you can work the single crochet in the center chain stitch or in the chain loop, whichever you prefer. If it’s being worked over two separate spaces or blocks, then you work the single crochet in the center double crochet between the first and second space or block.
Chain 3 and skip the next 2 stitches.
See the holes forming?
Double crochet in the next double crochet.
This step completes one lacet.
