These prints are all A3 (297mm x 420mm) so they do not necessarily require bespoke framing, any A3 sized frame will fit.*
However, a frame sold as 'A3 size' can describe two different types of frame: a standard A3 frame (without a mount) will fit the print within the whole glazed area (fig. 1), whereas an A3 frame with a mount will be larger (sometimes sold as ‘A2 for A3’), and have a window within the mount that is A3 sized where the print will be positioned (fig. 2). Some frames will be sold as ‘A3 for A4 with a mount’, meaning that the full glazed area will be A3 size (similar to fig. 1), but the mount window will be A4 sized. These will fit your A3 print if you remove the A4 mount first.
* Where a print is available as A2, the same sizing options apply but the standard frame without a mount will be ‘A2’ and the larger frame with a mount will be ‘A1’.
Both types are widely available in shops and online.
