The trainmann car is scale where anything by menards is not. Your comparing apples and oranges.
Hmm... Not really true. If you look in the recent Menards thread, I compared the Menards 40 foot boxcar dimensions with the Lionel Vision Line PFE Reefers. The only dimension that is off is they are very slightly narrower, with the emphasis on very slightly, less than 1/8". Length and height are virtually identical, not enough to speak of, less than 1/16". I won't argue that you're getting a more finely detailed product with Atlas, but I just want to correct a misconception that the Menards cars are not scale.
FWIW, the flatcars are not scale, at least I don't think so at their size, I'm speaking of the boxcars they offer.
IMO, the Menards cars are great for running and packing around, the bonus of not having a lot of fine detail is you don't have fine detail to break. 
