Standard Sizes

These are the external and internal sizes of our standard cut mounts. We give them in imperial and metric sizes; we do not have a preference for which system is used, though we do ask that, if you are specifying a non-standard cut, you use either imperial or metric measurements and do not attempt to mix the two.

We are happy to quote for non-standard sizes or cuts; please use our printable enquiry form to request a quote.

For some external sizes we provide a choice of two different internal sizes, to suit differing types of work.

The external sizes are downsized by 1mm all round so that they will always fit into a frame of the stated size without forcing. Within the list, the bold entries are the sizes in which you are likely to find standard frames.