As well as an artist I also have my own picture framing business in Cumbria. The frames I provide for my prints come in the following options:
18mm wide flat, 20mm deep picture frame moulding. Made from real ayous wood with an open grain finish.
 
All frames have Acrylic glazing: 1.5mm. Is light, safe, optically outstanding, 
Framed orders take 5-10 working days.