Swinging gates must not have a skewed post. The sashes must be level and open easily, without unnecessary effort. It is better if they hang on hinges with bearings.

The instructions for the drive usually have a graph of the ratio of the length of the sash to its height. That's why the weight of the leaf is a relative indicator. In addition to the weight of the gate leaf, there is another important parameter: the sail and wind resistance. The higher this parameter, the harder it is for the drive to push the gate leaf, including strong winds. It's important which Garage Doors you choose. Very good if they are wood.