Hi: I do not sell a lot of canvas. I have a client interested in a canvas print of a family photo to go over their mantle. I haven't seen the mantle but I think it's an average sized middle class house. Not a mansion, not small either. I will ask them to measure exactly but, on average, those of you who do sell a lot of canvas, is there a popular mantle size or a few popular sizes? She is asking what's a common mantle size. I'd like to be able to give her a ballpark and also ballpark price (I'm not asking price here, just size.) Not sure if they want a gallery wrap or a loose canvas to frame. Thank you so much.