Dimensions of frames, paintings, posters
To establish the right dimensions for a frame, it is important to know the dimensions of the work or subject to be framed. In a classic frame, it is always necessary to consider that the work will be covered by about 0.4 cm on each side. This overlap will serve to support the work on the frame so as to correctly see the work from the front without seeing unpleasant edges around it.
Size matters.
Being able to compare measurements, as in this example,
helps you choose.