How to Repair a Sagging Gate

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A sagging gate is a common problem that many homeowners experience. Weather and constant use can cause deterioration of the bolts and wood where they are attached. It can become a real annoyance, dragging on the ground and becoming impossible to open. In most instances, it can be repaired with a few basic adjustments.

Things You'll Need

  • Level
  • Tape measure
  • Power drill
  • 3-inch deck screws
  • Circular saw
  • 2 inch by 4 inch board
Gate in need of repair.
Gate in need of repair. (Image: Debbie Williams)

Step 1

Examine the gateposts to make sure that they are level and plumb. Although this is not usually the problem, you must have a secure foundation to attach the gates. Repair if necessary. Examine the hinges for missing or rusted lag screws. Obtain replacements if necessary. Remove the latch.

Removing the latch makes handling the gate easier.
Removing the latch makes handling the gate easier. (Image: Debbie Williams)

Step 2

Measure from the bottom on the hinge side up to the top on the latch side at a diagonal. Cut a 2 inch by 4 inch board to fit this measurement. Start a few 3-inch deck screws partway through the board. Have a helper pull the gate up to a little above level and drive the screws into the vertical boards of the gate.

Drive the screws with a power drilll.
Drive the screws with a power drilll. (Image: Debbie Williams)

Step 3

Disconnect the bottom hinge by removing the lag bolts even if the hinge and bolts look like they are in good shape. If the hinge is bent, obtain a replacement.

Use a socket on a power drill to remove the lag screws.
Use a socket on a power drill to remove the lag screws. (Image: Debbie Williams)

Step 4

Loosen the top hinge by removing the lower lag bolt. Have a helper pull the gate up and check with a level. Mark the location on the lag bolt and retighten or replace the bolt in the new location.

Tighten the bolt at the level position.
Tighten the bolt at the level position. (Image: Debbie Williams)

Step 5

Still holding the gate at the level position, reset the lower hinge by relocating it and drilling new holes for the lag bolts. Drill holes slightly smaller than the lag bolt diameter.

A power drill is invaluable for this repair.
A power drill is invaluable for this repair. (Image: Debbie Williams)

Step 6

Install the lag bolts in their new location and tighten all the bolts at the top and bottom hinge. It's a good idea to oil the hinges or spray with WD-40 to help them work smoothly without creaking.

Check and tighten bolts by hand with a socket wrench.
Check and tighten bolts by hand with a socket wrench. (Image: Debbie Williams)

Step 7

Last step, reinstall the latch and it should work smoothly.

Reinstall the latch as the final step.
Reinstall the latch as the final step. (Image: Debbie Williams)

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