Step 1

Row 1: Sk 9 ch, dc in each of next 3 ch, *ch 3, sk 3 ch, dc in each of next 3 ch, rep from * to last 2 ch, ch 1, dc in last ch, turn.

Step 2

Row 2: Ch 1, sc in first dc, *ch 3, sk dc, sc in next dc, ch 3, sc in ch-3 sp, rep from * to last 3-dc group, ch 3, sk dc, sc in next dc, ch 3, sc in sp of beg ch-9, turn.

Step 3

Row 3: Ch 4, *sc in next ch-3 sp, ch 3, rep from * to last ch-3 sp, sc in last ch-3 sp, ch 1, dc in last sc, turn.

Step 4

Row 4 (RS): Ch 1, sc in first dc, ch 1, *5 dc in next ch-3 sp, ch 1, sc in next ch-3 sp, ch 1, rep from * to last ch-3 sp, 5 dc in last ch-3 sp, ch 1, sc in sp of beg ch-4, turn.

Step 5

Row 5: Ch 4, *sk first dc of next 5-dc group, dc in each of next 3 dc, ch 3, rep from * to last 5-dc group, sk first dc of last 5-dc group, dc in each of next 3 dc, ch 1, dc in last sc, turn.

Step 6

Row 6: Ch 1, sc in first dc, *ch 3, sk dc, sc in next dc, ch 3, sc in ch-3 sp, rep from * to last 3-dc group, ch 3, sk dc, sc in next dc, ch 3, sc in sp of beg ch-4, turn.

Step 7

Rep rows 3-6 throughout.