I made this bigger than the pattern to fit a double bed. I preferred the tighter texture I got on 4mm needles therefore needed to adjust the stitch count to get the required size of pieces.

70 stitches for sides
50 stitches substituted for 41 and 42
25 substituted for 20 and 21

Extra pieces:
Piece 2 without 2a
Piece 6, 6a
Piece 4 half size, 4a
Piece 7 decrease side only, increase side left straight.
7 extra full cubes - 16 total

300 stitches picked up for short side
350 stitches picked up for long side