When I first started wood working I want to make a chessboard out of red oak and walnut. However, I thought if a regular sized board was good a gigantic chessboard would be better. Also, I saw a little knick knack stand that had three shelves and it was made of oak with straight 1 inch square oak legs. I thought it looked great and if it look great then I could copy it and make it better by making it twice the size.
In both cases, as you probably already know, I was wrong as you can not just scale up by doubling the dimensions. Well, you can do it but it ain't gonna look too great!