B&M are apparently changing suppliers of sheds and clearing old stock. My closest (Cwmbran) has an outdoor garden section and the sheds are outside. They had a few left.
I'm guessing delivery is store specific- apparently I need to pay £25 to the guy directly when it arrives bmstores.co.uk/pro…525
4x6 are £100bmstores.co.uk/pro…524
Have had to click Cardiff as deal not online, and no representation for any of South Wales other than Cardiff. But will be nationwide just stock dependant