http://www.articleheaven.net en-us editorial@articlealley.com Two similarly sized beams arranged at 45 degree angle and are attached at the top forms a structure what that is popularly known as the A-frame. Due to their two legged structure, they have a good stability. A- Frames are often made from various materials... http://www.articleheaven.net/a-frames-and-their-uses-1469419.html 25th March 2010