I can't give a definitive answer for anyone but me; but I've never found them in my size as I have very wide feet.
I did find one UK store online that 'said' they carried the wide sizes, but I never buy shoes without trying them on as there are no standard sizing. I have managed several shoes stores in my varied career and trying to never let anyone out of my store without trying on the shoes, as it saved us all the time and hassle of a return later.