How do I make a garden gate close by itself?

Self-closing matters when a gate protects something — a pond, a road, a dog. The mechanism is the easy part. Getting a gate to close reliably all the way into the latch, in winter as well as summer, is where it usually goes wrong.

Step by step

1. Check the gate swings freely first.A closer cannot overcome a binding hinge or a dragging gate. Fix the hinges, clearances and any sag before fitting anything.
2. Fit a gravity or roller latch.A self-closing gate needs a latch that engages on impact. A drop bar or thumb latch will not catch on its own, so the gate closes and sits unlatched, which is worse than no closer.
3. Mount the closer on the hinge side.Barrel and hydraulic closers fix between the hanging post and the gate, close to the hinges. The nearer the hinge, the more force is needed but the less the gate is stressed.
4. Set the tension in stages.Start light and increase until the gate closes fully and latches from a 90-degree open position, without slamming. Too strong is as bad as too weak — it damages the latch and the post.
5. Fit a stop so the gate cannot overtravel.A closer drives the gate hard into the closed position. A stop on the post takes that force instead of the latch.
6. Test from several open positions.From fully open, from half open, and from a gentle push. All three should latch. A gate that latches from wide open but not from a small push is set too weak.
7. Re-check after the first damp spell.Timber swells and friction increases. A closer set at the summer minimum will stall in winter, so set it with a margin and check it seasonally.

Tips

• Hydraulic closers are worth the extra on any gate near a house — a barrel spring slamming a gate at eleven at night gets old fast.
• Two lighter closers on a heavy gate work more smoothly than one very strong one and are gentler on the post.
• If the gate is a safety barrier, test it monthly. A self-closer that has stalled looks exactly like one that works.

Common mistakes

• Fitting a closer to a gate that already drags — The closer masks the problem by forcing the gate shut, wearing itself and the hinges out quickly. Fix the swing first.
• Relying on a closer with a manual latch — The gate closes and stays unlatched, so it blows open in the first gust. Self-closing needs self-latching.

If it doesn't work

Alternatives

• Barrel spring closer: A sprung barrel between gate and post. Cheap, adjustable tension, and prone to slamming. Fine for a light gate where noise does not matter.
• Hydraulic gate closer: Closes under spring pressure but damped by oil, so it draws the gate in and slows at the end. Much better on heavy gates and near a house. More expensive and needs seasonal adjustment.
• Rising butt hinges: The gate lifts slightly as it opens and gravity closes it. Neat and invisible, only suitable for light gates on ground with clearance, and weak in the last part of the travel.
• Weight and pulley: A cord over a pulley to a hanging weight. Old-fashioned, entirely reliable, adjustable by adding weight, and looks agricultural.

Questions people ask