Intarsia knitting?

Hi, I hope someone can help I have a pattern for the Rowan Alphabet baby blanket but I want to make it bigger for a twin size bed is, this possible?, and if so how would I go about it? Thanks in advance for any help
Angie

You want to make the blocks bigger? You could just add more blocks to make it the size you want. That would be the easiest way and it would still look nice.

I would prefer to make the blocks bigger they just look small to me but I can add blocks to the blanket, if its easier I am new to intarsia knitting so it might be better for me anyway thanks for your help
Angie