Lovely pattern. Used 4mm needles for garter middle and old shale, then a 3.75mm lace needle for the knitted on edging (yep, wrong side rows still worked with the long 4mm addi turbo, but that seems to have been ok).

Measured 34 x 34 inches unblocked.

Blocked easily to 44 x 44 inches. Relaxed back about half an inch in both directions when I took out the pins.