Thanks Salmonmac, Julie! The pattern comes from a whole booklet online that I downloaded as a free pdf file, I'm not sure about the restriction there.
Thanks for the tips; I would therefore scale up the knitting to 43 inches to allow for blocking?
Would using a DK weight 100% acrylic be suitable given the kind of yarn called for in the pattern?
We have a surplus of DK yarn here in the UK and it's the easiest to find for me!