The UK has quite a few kinds of "Do It Yourself" stores, from somewhere like B&Q that is catering primarily for consumers through to a Screwfix who are more trade focused but still open to the public.

This particular niche is one where the UK did a lot of the US-style "Business is just a large metal shed, surround it with car parking, build it miles from anywhere" whereas for a lot of other shops the UK doesn't do that, preferring to put them together in walkable parts of a city or town instead. DIY stores are just especially suited to huge metal sheds in a way that furniture stores or grocery stores are not (those do both exist in the form of giant metal sheds in the UK but it's less common) - and their customers typically drive.