Decking paint

[clivvy]

anyone know any very cheap places I can get some decking paint from? I didnt paint mine last year, and now its faded and needs paint (rather than a protection-its got that), but I dont want to have to buy from expensive B&Q. Ive seen Wilko as a flal back plan, any where else? size-wise were not talking very big, just small patio size plus walkway. I also need to paint mygarage extension as similar colour as possible, again not very big...