A single gate offers ease of locking and presents a more formidable obstacle for potential intruders. However, if you have a fence that spans a walkway leading to your backyard, either a single or double gate can be suitable. If the walkway is intended for pedestrian access only, both gate types serve the purpose. However, if you envision using the walkway for driving a car or moving heavy equipment, a double gate becomes the preferred choice, providing the necessary width for seamless passage.