Abstract: A frame assembly has a backing board and elongate frame members positioned end-to-end around the periphery of the backing board. Each frame number has an edge member, with a pair of limbs positioned on opposite sides of the edge of the backing board, and clamp elements. Each clamp element has a formation which urges the limbs apart to induce a stress in the edge member which, in turn, urges the clamp elements towards the backing board. The formations of the clamp elements and the complementary edge portions of the edge member define retaining formations which retain the clamp elements captive between the edge member and the board and permit pivotal displacement of the clamp elements. The clamp elements have gripping formations configured to facilitate displacement of the clamp elements from their closed positions towards their open positions.