Forum Archive : Doors

We have a dog and a cat. The dog loves eating the cat food. To solve that problem, we have been putting the cat food on the stairs leading to the basement, with something sitting in front of the door so that it is left open about 4 inches. This way the cat can sneak through, but the dog cannot. However, the dog has recently figured out how to push the door open despite the door weight. We have increased the weight of the “stopper” but she still pushes it open.

Does anyone have any sugguestion on a better way to do this? Ideally, we would like to do it without ruining the door or the door frame (ie by screwing into it).

thanks!