36"x40" [91.5 x 101.5 cm]
7 sc & 8 rows = 4" [10 cm].
With MC, ch 89.
Row 1: (RS). Cluster in 6th ch from hook. *Ch 1. Skip next ch. 1 dc in next ch. Ch 1. Skip next ch. Cluster in next ch. Rep from * to last 2 ch. Skip next ch. 1 dc in last ch. Turn.
Row 2: Ch 4 (counts as dc. Ch 1). *1 dc in top of next cluster. Ch 1. Cluster in next dc. Ch 1. Rep from * to last Cluster. 1 dc in last Cluster. Ch 1. 1 dc in last dc. Turn.
Row 3: Ch 4 (counts as dc. Ch 1). *Cluster in next dc. Ch 1. 1 dc in top of next Cluster. Ch 1. Rep from * to last 2 dc. Cluster in next dc. Ch 1. 1 dc in last dc. Turn.
Rep Rows 2 & 3 until blanket measures 38" [96.5 cm]. Fasten off.
BORDER: With RS facing, join A with sl st to top right corner. Ch 3 (counts as dc). Work 1 rnd of dc evenly around all side edges, having 3 dc in each corner. Join with sl st to top of ch 3. Fasten off.
Beg = Beginning
Ch = Chain(s)
Dc = Double crochet
Rep = Repeat(ing)
Rnd = Round(s)
Sc = Single crochet
Sl st = Slip stitch
Yoh = Yarn over hook
Cluster = (Yoh & draw up a loop in next st. Yoh & draw through 2 loops on hook) 5 times. Yoh & draw through all loops on hook. Ch 1.