Distance between shelf and top/bottom
Understand from previous question the shelf is non adjustable and cannot be removed. The "OVERALL" inside dimensions were supplied but pls provide the dimensions from the top of the shelf to the top of the inside, i.e. if I wanted to purchase this to hold bottles of wine standing up, would one fit...so since the shelf is not adjustable, it is important to know if I have a 20 inch item if it will stand on the shelf. Appreciate if measurements could be provided for using both top and bottom space would be appreciated; thank you.