Note: Not just a filet crochet chart, remember you could also use the graph/ chart for tapestry crochet, beaded crochet, tunisian filet crochet, embroidery even knitting!

Also has a symbol chart

Recommended thread size No.10 if using a different size the coaster may be much bigger or smaller and require a different hook size and yardage/ metreage

Note: Because I have been asked a few times a Shamrock has 3 leaves and a Clover has 4 leaves (ie. Luckily four leaf clover)