I'm after a wood moulding channel section and I'm finding it difficult to find any.
I want something like a 15mm square section with a 5mm slot in it, the dimensions aren't that critical though, anything around that sort of size will do and it doesn't even have to be symmetrical.
Can anyone suggest a supplier? All the obvious candidates (B&Q, Wickes, etc.) all have the same range of angles, quadrants and decorative shapes but nothing like a channel.