Custom foam cushions - is there a cheap but decent supplier?

[whiskyowl]

I have a flight of 3 steps between rooms on my ground floor, and they're perfect for additional seating. I'd like to get some foam pads made up to the width of the steps to make this more comfy. Wondering if there is anywhere online that does this inexpensively?

I bought foam cushions from www.foamcut2size.co.uk in Bristol and they're fab. But I went there in person so can't comment on delivery.

I used Any Foam recently. Good value and efficient

Sorry, my bad, should have been clearer. I don't mean the internal foam, I mean is there an inexpensive place where you can get the whole cushion made up to measure? Fabric covering as well as foam?