NTS&B Some new shelving

Kathy was concerned that I might have more trains than would fit on the layout, so I decided to ease her mind and build a display shelf at the end of the room to hold some of my extra stock.  The shelves are 5 feet wide, by 7 feet tall, by 4 inches deep.  The risers were notched for each shelf.  Each shelf was grooved to fit the wheels, instead of having to add track to the shelves.  I also notched and painted the leftover parts of the shelves and risers, so I can build another shelf under the layout when time and energy permits.

The plan is to be able to switch out from all F3's to steam, or some other combination.   I have the feeling that I may need more shelves to accomplish this though.  Here are the pictures.