8 places we'd recommend:
1. Nielsen - our personal favourite, a really sturdy and premium purchase. You can buy your A4 and A3 prints framed from us and these are the ones we stock - these frames are aluminium, thin profile and come with acrylic sheets to protect your artwork.
3. John Lewis - the 'Anyday' range is good if you love contemporary, clean lines
4. TK Maxx - always good for a rummage around!
5. H&M Home
6. IKEA - we like the Lomviken, it's very lightweight.
9. Your local framers if you want to support independent!
Always double check measurements on each frame, and most show measurements with and without mount, depending on the kind of look you want to go for.