Here’s a drawing of my favorite earthbag slider that makes it easy to place bags on the wall without getting hooked on the barbed wire. If you want to make one, start out by cutting a sheet of 1/16th thick steel about 13 inches wide by 16” long. Tack weld a piece of 1” by 1-1/4” angle iron on one end for a grip and then weld the back edge. Radius the front corners 2” or so. Grind off sharp edges, remove any rust with sandpaper and then spray paint to protect the metal. Recoat after each project since these sliders really take a beating. And don’t skimp on the steel thickness or the barbed wire will quickly destroy it. Typical galvanized sheet metal is inadequate.
Related: My Favorite Tamper