Row 2 and 3: Ch 1, turn; sc in each sc across.
To work Front Post treble crochet (abreviated FPtr), yo twice, insert hook from front to back around post of sc indicated, yo and pull up a loop (4 loops on hook), (yo and draw through 2 loops on hook) 3 times.
Row 4 (right side): Ch 1, turn; sc in first 2 sc, work FPtr around first sc on third row below, skip next 4 sc on third row below, work FPtr around next sc on third row below, * skip next 2 sc from last sc made, sc in next 4 sc, work FPtr around next sc on third row below, work FPtr around next sc on third row below; rep from * across to last 5 sc, skip next 2 sc from last sc made, sc in last 3 sc.
Rows 5 - 7: Ch 1, turn; sc in each st across.
Row 8: Ch 1, turn; work FPtr around sc on third row below, skip first sc, sc in next 4 sc, * work FPtr around next sc on third row below, skip next 4 sc on third row below, work FPtr around next sc on third row below, skip next 2 sc from last sc made, sc in next 4 sc; repeat from * across to last 2 sc, work FPtr around next sc on third row below, skip next sc from last sc made, sc in last sc.
Rows 9 - 11: Ch 1, turn; sc in each st across.
Rep Rows 4 - 11 for pattern.
Row 2 (right side): Ch 1, turn; slip st in Front Loop Only of each sc across.
Row 3: Ch 1, turn; working in free loops of previous row, sc in each sc across.
Rep Rows 2 and 3 for pattern.
Row 2: Ch 4 (counts as first dc plus ch 1, now and throughout), turn; skip next dc, dc in next dc, * ch 1, skip next dc, dc in next dc; repeat from * across.
Row 3: Ch 4, turn; dc in next dc, (ch 1, dc in next dc) 4 times, dc in next ch-1 sp and in next dc, * (ch 1, dc in next dc) 7 times, dc in next ch-1 sp and in next dc; repeat from * across to last 5 dc, (ch 1, dc in next dc) 5 times.
Row 4: Ch 4, turn; dc in next dc, (ch 1, dc in next dc) 3 times, dc in next ch-1 sp and in next dc, ch 5, skip next dc, dc in next dc, dc in next ch-1 sp and in next dc, * (ch 1, dc in next dc) 5 times, dc in next ch-1 sp and in next dc, ch 5, skip next dc, dc in next dc, dc in next ch-1 sp an in next dc; repeat from * across to last 4 dc, (ch 1, dc in next dc) 4 times.
Row 5: Ch 4, turn; dc in next dc, (ch 1, dc in next dc) twice, * dc in next ch-1 sp and in next dc, ch 4, sc in next ch-5 sp, ch 4, skip next 2 dc, dc in next dc, dc in next ch-1 sp and in next dc, (ch 1, dc in next dc) 3 times; repeat from * across.
Row 6: Ch 4, turn; dc in next dc, * ch 1, dc in next dc, dc in next ch-1 sp and in next dc, ch 4, skip next 2 dc and next 3 chs, sc in next ch, sc in next sc and in next ch, ch 4, skip next 2 dc, dc in next dc, dc in next ch-1 sp and in next dc; repeat from *across to last 2 dc, (ch 1, dc in next dc) twice.
Row 7: Ch 4, turn; dc in next dc, dc in next ch-1 sp and in next dc, * ch 4, skip next 2 dc and next 3 chs, sc in next ch, sc in next 3 sc and in next ch, ch 4, skip next 2 dc, dc in next dc, dc in next ch-1 sp and in next dc; repeat from *across to last dc, ch 1, dc in last dc.
Row 8: Ch 4, turn; dc in next dc, ch 1, * skip next dc, dc in next dc and in next 2 chs, ch 4 skip next sc, sc in next 3 sc, ch 4, skip next sc and next 2 chs, dc in next 2 chs and in next dc, ch 1; repeat from * across to last 3 dc, skip next dc, dc in next dc, ch 1, dc in last dc.
Row 9: Ch 4, turn; (dc in next dc, ch 1) twice, * skip next dc, dc in next dc and in next 2 chs, ch 4, skip next sc, sc in next sc, ch 4, skip next sc and next 2 chs, dc in next 2 chs and in next dc, ch 1, skip next dc, (dc in next dc, ch 1) twice; repeat from *across to last dc, dc in last dc.
Row 10: Ch 4, turn; (dc in next dc, ch 1) 3 times, skip next dc, dc in next dc and in next 2 chs, ch 1, skip next sc and next 2 chs, dc in next 2 chs and in next dc, ch 1, * skip next dc, (dc in next dc, ch 1) 4 times, skip next dc, dc in next dc and in next 2 chs, ch 1, skip next sc and next 2 chs, dc in next 2 chs and in next dc, ch 1; repeat from * across to last 5 dc, skip next dc, dc in next dc, (ch 1, dc in next dc) 3 times.
Row 11: Ch 4, turn; (dc in next dc, ch 1) 4 times, skip next dc, dc in next dc, dc in next ch-1 sp and in next dc, ch 1, * skip next dc, (dc in next dc, ch 1) 6 times, skip next dc, dc in next dc, dc in next ch-1 sp and in next dc, ch 1; repeat from * across to last 6 dc, skip next dc, dc in next dc, (ch 1, dc in next dc) 4 times.
Row 12: Ch 4, turn; (dc in next dc, ch 1) 5 times, * skip next dc, (dc in next dc, ch 1) 8 times; repeat from * across to last 7 dc, skip next dc, dc in next dc, (ch 1, dc in next dc) 5 times.
Row 13: Ch 3 (counts as first dc), turn; dc in next ch-1 sp and in each dc and each ch-1 sp across.
Rep Rows 2 - 13 for pattern.
Row 2: Ch 3 (counts as first dc), turn; 2 dc in next ch-1 sp, skip next 3 dc, (dc, ch 1, dc) in next dc, * 5 dc in next ch-1 sp, skip next 3 dc, (dc, ch 1, dc) in next dc; repeat from * across to last sp, 3 dc in last sp.
Row 3: Ch 4, turn; dc in first dc, * 5 dc in next ch-1 sp, skip next 3 dc, (dc, ch 1, dc) in next dc; repeat from * across.
Rep Rows 2 and 3 for pattern.