With A, ch 174.
Row 1 (WS): Dc in 4th ch from hook (beginning ch counts as dc) and in each ch across – 172 dc at end of this row.
Rows 2 and 3: Ch 3 (counts as first dc here and throughout), turn, dc in each st across.
Row 4: Ch 3, turn, dc in next 3 sts, *ch 2, sk next 2 sts, dc in next 4 sts; rep from * across – 28 ch-2 sps at end of this row.
Rows 5-7: Rep Row 2.
Notes: Second-Eighth Strips are worked as for First Strip through Row 7, and then joined to previous Strip with a Joining Row. The Joining Row is worked back and forth between the last row of the current strip and the foundation ch of the previous strip.
With B, ch 174.
Rows 1-7: Work Rows 1-7 of First Strip. Do not fasten off.
With RS facing, place previous Strip above current Strip.
Joining Row: Ch 1, turn, sc in first st of current Strip, ch 2, sc in first foundation ch of previous Strip, ch 3, sk next 2 sts of current Strip, *sc in next st of current Strip, ch 3, sk next 3 sts of previous Strip, sc in next st of previous Strip, ch 3, sk next 3 sts of current Strip; rep across continuing to work back and forth between the 2 Strips, ending with sc in last st of current Strip, ch 2, sk next 2 sts of previous Strip, sc in last st of previous Strip. Fasten off.
With C, D, E, F, G, and H, work as for Second Strip.
With RS facing, join A with sl st in any corner.
Rnd 1: Ch 1, sc evenly around outside edge, working 3 sc in each corner; join with sl st in first sc.
Rnd 2: Ch 1, sc in each sc around, working 3 sc in each corner; join with sl st in first sc.
Fasten off. Weave in ends.