I need a cart for my full and half doors, and the Store-A-Door looks to be my best option given the size/orientation. (I'm not interested in making a cart out of PVC and can't hang on walls.) I can't get a response from Top Lift Pros if it works with the new half doors. I imagine the half doors + uppers are the same dimensions as full doors, but the cart has a spring mechanism to hold the top of the doors, and I just want to confirm this would work with soft uppers. Also, does anyone have the dimensions of the cart? I can't find them on the website. Thanks for any feedback.