How to Install Large Gate Hinges

Written by patti perry
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How to Install Large Gate Hinges
Strap hinges are most commonly used to install gates. (red painted hinge image by Tammy Mobley from

Strap hinges are used to install most large gates. These have identical triangular leaves on each side of the centre pivoting pin, the barrel. T-hinges and spring hinges are installed on some gates when less weight allows for this style. Most large gate hinges are designed for wood-to-wood installation. If you are attaching a large gate to a stone or masonry fence, a solid wooden 2-by-6 must be attached with suitable anchors to the fence before the hinges can be attached.

Skill level:

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Things you need

  • Strap hinges
  • Lag bolts
  • Pencil
  • Drill
  • Drill bits
  • Level
  • Wooden shims

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  1. 1

    Place the gate on a flat, level surface.

  2. 2

    Lay the strap hinges in position on the gate. The middle barrel of the hinge should be directly over the end of the gate, in the spot that will be between the gate and post. The barrel is the moving part of the hinge. Mark the holes with a pencil mark.

  3. 3

    Drill small guide holes at each pencil mark with a drill bit that is smaller in diameter than the lag bolts necessary for your gate size. As example, use 1/8-inch drill bit for 1/4-inch lag bolts. Lag bolts often come with a hinge purchase, or you can buy bolts that correspond to the holes in the strap hinges.

  4. 4

    Install the first lag bolt in the far interior hole on the strap hinge, just snug, so that adjustments can be made to level it.

  5. 5

    Use a level to make certain that the gate is in position. Place wooden shims under the gate to maintain this reference.

  6. 6

    Install the middle bolt, then the last bolts, the ones closest to the barrel. Check your level position.

  7. 7

    Drill holes through the post strap and install lag bolts into the post.

Tips and warnings

  • It is helpful to have a helper to steady the gate as you drill the hinge into the post.

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