Width at widest point (approx.) 134.5cm (53 in)
Length at longest point (approx.) 67cm (26.5 in)

Pattern Errata
There is a ‘yo’ missing on all RS pattern rows from row 15.
There should be a yo after SSM, K1, SSM, on every RS row to make 4 increases every RS row, either side of the 1st & last stitch and either side of the central stitch.
I hope this helps, sorry.

The pattern correction starts as follows:

Row 15 (RS) (inc): K3, yo, K to marker, yo, SSM, K1, SSM, yo, K to last 3 sts, yo, K3. (33 sts)
Row 16: K4, P to marker, SSM, P1, SSM, P to last 4 sts, K4.
Row 17 (inc): K3, yo, K to marker, yo, SSM, K1, SSM, yo, K to last 3 sts, yo, K3. (37 sts)
Row 18: K4, P to marker, SSM, P1, SSM, P to last 4 sts, K4.
Row 19 (inc): K3, yo, K to marker, yo, SSM, K1, SSM, yo, K to last 3 sts, yo, K3. (41 sts)
Row 20: K4, P to marker, SSM, P1, SSM, P to last 4 sts, K4.
Row 21 (inc): K3, yo, K to marker, yo, SSM, K1, SSM, yo, K to last 3 sts, yo, K3. (45 sts)
Row 22: K4, P to marker, SSM, P1, SSM, P to last 4 sts, K4.
Row 23 (inc): K3, yo, K to marker, yo, SSM, K1, SSM, yo, K to last 3 sts, yo, K3. (49 sts)
Row 24: K4, P to marker, SSM, P1, SSM, P to last 4 sts, K4.
Row 25 (inc) K3, yo, K to marker, yo, SSM, K1, SSM, yo, K to last 3 sts, yo, K3. (53 sts)
Row 26: K to marker, SSM, K1, SSM, K to end.

After working the first set of lace rows and 6 eyelet rows (starting with 229sts) the pattern correction starts as follows:
Lace row 1 (RS)(inc)- K3, yo, K3, place marker, (SSK, yo, K1, yo, K4, K2tog)12 times, place marker, yo, SSM, K1, SSM, yo, place marker, (SSK, K4, yo, K1, yo, K2tog)12 times, place marker, K3, yo, K3. (233 sts)
Lace row 2, 4, 6 & 8 (WS): K4, P to last 4 sts, K4, leaving markers in place.
Lace row 3- K3, yo, K4, place marker, (SSK, yo, K1, yo, K4, K2tog) 12 times, place marker, k1,  yo, SSM, K1, SSM, yo, k1, place marker, (SSK, K4, yo, K1, yo, K2tog) 12 times, place marker, K4, yo, K3. (237 sts)
Lace row 5- K3, yo, K5, place marker, (SSK, yo, K1, yo, K4, K2tog)12 times, place marker, k2,  yo, SSM, K1, SSM, yo, k2, place marker, (SSK, K4, yo, K1, yo, K2tog)12 times, place marker, K5, yo, K3. (241 sts)
Lace row 7- K3, yo, K6, place marker, (SSK, yo, K1, yo, K4, K2tog) 12 times, place marker, k3,  yo, SSM, K1, SSM, yo, k3, place marker, (SSK, K4, yo, K1, yo, K2tog) 12 times, place marker, K6, yo, K3. (245 sts)
Next lace row (RS)(special inc row): K3, yo, K7, SSM, (K6, yo, K1, yo, K2tog) 12 times, SSM, K4, yo, SSM, k1, SSM yo, K4, SSM (SSK, yo, K1, yo, K6)12 times, SSM, K7, yo, K3. (273 sts)
Next Lace Row: K4, P to last 4 sts, K4, leaving markers in place.
You can now begin to work from garter row 1 on your pattern.