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While it is possible to install a manual gate yourself, it is generally not recommended. Professional installation is strongly advised, especially for automated or large driveway gates. Gates can be extremely heavy, sometimes weighing hundreds of pounds, which makes them bulky and dangerous to maneuver into place. Proper installation requires perfect positioning and balancing to ensure the gate swings smoothly and functions as intended. For automated gates, the wiring is also hazardous and typically requires a licensed electrician. Mistakes during a DIY installation can be costly, as materials alone can average around $1,000. Given the safety risks and the difficulty of achieving a proper setup, it is best to hire a professional gate installer.

Your gate should be 3/4 to an inch smaller than the opening. The opening size that you need for your gate can vary depending on your hinge type. You may also need to add reinforcing braces if the gap between your gate and the fence is not uniform from top to bottom.

Generally, the standard 10- to 12-inch-long and 1- to 1.5-inch-diameter gate springs will work. However, if you have an especially wide, thick, or heavy garden gate, you may need to opt for a longer, broader—and pricier—model to ensure secure closure and good longevity. These typically range between 12 and 16 inches long and are over 1.5 inches in diameter.

It does matter which way a hinge is installed because it’s possible to install a hinge backward. The hinge pin should face the direction in which the door will swing, making the pin visible. Exterior doors that swing outward need a security hinge with an Allen set screw in the center to prevent someone from removing the hinge from the outside and accessing the home or business.