Should I dare to buy ceiling moldings and store them in the garage, or will they become more crooked than cooked spaghetti because of this? Should I buy them the day I'm ready to nail them up?
even though it's already painted? no worries?
It's probably fine for you to store them in the cold garage, as moldings are often stored in cold spaces at hardware stores. Just don't forget to bring them into the warmth in good time before installation so they can adjust to the temperature of the room where they will be mounted.
In any case, avoid doing what I did with my floor moldings. I didn't think ahead and brought in a big pile that I placed right next to a warm radiator. They stayed there for about two months, and when I went to install them, they were all like bananas 