Before revision: Weld Access Hole Sketch The weld access hole or rat hole is a structural engineering technique in which a part of the web of an I-beam or T-beam is cut out, at the end of the beam and where the web meets the flange.
After revision: Weld Access Hole Sketch The weld access hole or rat hole is a structural engineering technique in which a part of the web of an I-beam or T-beam is cut out, at the end of the beam where the web meets the flange.