Abstract: A re-bar support device comprising a base board and re-bar holders to hold a plurality of re-bars spaced to fit into the holes of the hollow blocks used to build a block wall. The re-bar support device attaches to vertically standing stakes. Several re-bar support devices may be interconnected to cover the desired length of the foundation of the wall. The re-bar support device proposes several methods for easily introducing a re-bar to a re-bar holder and also discloses modifications on the internal side of the body of the re-bar support device to allow a better grip on the re-bars while concrete is poured around them during the formation of the foundation for the wall.