Deep section 'L' profiles

[GeoSpectrum]

I have a customer who wants a deep section 'L' for frames for her 40mm deep canvases. The ones I have and can find seem to be limited to about 42-43 mm, my customer is looking for something a little deeper.
Say 50mm, to allow the canvas to sit into the frame a little.

does anyone know of a moulding that might do the job? Plain wood or white is preferred.

Thanks.

[pramsay13]

Something like this?
http://www.arqadia.co.uk/productdetails ... =132400000

[FFrames]

this'll work but its quite wide

http://www.arqadia.co.uk/productdetails ... =238127000

[Jamesnkr]

Sorry for stating the obvious, but what about two bits of wood joined together?