Using my yarn and hook, square is 9”

Tip:
Rnd 5: Be SURE not to miss the 2 dc in last st (44 st)
Corrections:
Rnd 8: Repeat ends at the ch-4 (delete “sc in corner sp”), each corner is (sc, ch 5, sc); to end rnd ch 4 & join to 1st sc. (40 lps)
Rnd 11: 4 sc (not 5) before reaching 2nd sc of corner, make sure corner sts go into the 2nd sc of the previous corner
Clarification:
Rnd 12: Rnd can be simplified: sk top of 2 dcs and work st into the sp after the 2nd st, so…go into the sp betw the 2nd and 3rd st, then into sp between 4th and 5th st, the 6th and 7th, etc.
Needed more st height to get to 9”:
Rnd 14: Hdc each st across, (2 hdc, ch 2, 2 hdc) corners
Rnd 15: Sk 1st st after corner and last st before corner, hdc in ea of other sts, (2 hdc, ch 2, 2 hdc) corners