Fence Gate Hardware Calculator
Calculate hinges, latches, and drop rods needed for single and double fence gates.
Gate hardware count comes down to two things: how many gate leaves you have, and how wide each one is. Every leaf needs its own set of hinges, and a leaf under 4 feet wide typically holds fine on 2 hinges, while anything wider needs a third to stop it from sagging over time. Double gates add a wrinkle — one leaf is usually active (with the latch) and the other is passive, held by a drop rod or cane bolt into the ground or a header, so double gates need a drop rod that single gates don't.
Frequently Asked Questions
How many hinges does a wide gate need?
Gate leaves up to 4 feet wide generally need 2 heavy-duty hinges. Leaves wider than 4 feet, or gates carrying extra weight like solid privacy panels, should use 3 hinges to prevent sagging.
Do double gates need extra hardware beyond hinges and a latch?
Yes — double gates need a drop rod (also called a cane bolt) on the inactive leaf so it can be locked into a sleeve in the ground or a header, keeping that leaf steady while the active leaf opens and closes.