 i i wouldn't hesitate to attach it to the cabinet body above the door if i had the space if you wanted to try to kind of hedge your bed a little bit get a little bit more control what you could do is you could attach a nailing strip or a screwing strip so to speak on top of that cabinet so let's say you have a piece of wood that maybe is one by one square when you attach that to the top of the cabinet you drill down so it attaches into the top style of that cabinet and now you have a much bigger flatter surface