When a framer speaks of a 30x40 cm frame, he/she is normally referring to the internal size of the frame, where the 30x40 cm glass will be placed. The frame must be therefore a bit larger than the glass and the framer will cut the frame in the size 30,2x40,2 cm (or 30,3 x 40,3). The number of additional millimetres to be added must always be indicated when making a chop order. If you enter, e.g, “2“, we will cut the frame at 30,2x40,2 cm. Should you not enter any value, the frame will be cut exactly 30x40 cm, without adding any additional millimetres.