box frame sizes in inches (internal dimensions)

6 x 6 £55
8 x 6   £75
10 x 8 £100
10 x 10 £145
10 x 12 £185
12 x 12 £195
14 x 14 £240
16 x 10  £205
6 x 6 hinged double frame (photo 1 side) £100
20 x 8   3 apertures £240
19 x 12  single or double apertures £275
20 x 16 £310
23 x 14 £330
26 x 13 £360