Hello, What is the best type of lintel for installing in this situation? I would like to see the underside of the stone head. I have got to install three traditional sash windows. They will sit behind the outer leaf brickwork. A stone head will be sit above and in front of the sash window. See my rubbish diagram. If i use a catnic lintel then you will be able to see the underside of the lintel rather than the stone head. Thanks for any advice.