I was recently asked to frame two modern Aboriginal paintings on board about 300 x 200 mm. They were slightly different sizes and out of square. The artists had also painted over the edge of the board. I decided that the best way to display them was Float Mounted in a Box Frame. This presented the whole painted area including the edges and enabled me to use identical size frames. They can now be displayed as a pair although the colour of each painting and its mount are very different.