Pattern contains 4 different stripe sequences using the Fibonacci and Lucas numbers.

Yarn used is Knit Picks CotLin Pomegranate, Ivy, Linen, and Eggplant
300 yds of each color if 4 colors are used per placemat
300 yards for each placemat if you want to make solid color mats
Each row takes approximately 3 yards using a G hook and this yarn

Pattern uses the seed stitch - single crochet and chain stitches. It’s easy enough for a beginner.

Size can be altered by changing hook, the number of foundation chain stitches and material used.

Note that the CotLin does shrink a little after washing.