There are a few different options that can be used in place of a sawhorse. One option is to use two saw horses side by side and lay a longer piece of wood or metal across them. This will create a stable surface on which to cut. Another option is to use two chairs placed upside down with the seat backs touching. Again, this will create a stable surface for cutting. Finally, another option is to use two cinder blocks placed about four feet apart with a piece of wood or metal laid across them. This too will create a stable surface on which to cut.