In this video. This Old House landscape contractor Roger Cook fixes a sagging fence gate and also replaces a missing picket.
How to repair a fence gate
- Unscrew the gates from the fence posts and remove the old hinges.
- Set the gate across two sawhorses.
- Steal a picket from an inconspicuous area of the fence and use it to replace broken gate picket.
- Hold the hinges against the 2x4 gate rail and drill 3/16-inch-diameter pilot holes for lag screws.
- Fasten the hinge to the gate rail with lag screws. Repeat to install hinges on the second gate.
- Remove the broken picket from the gate and attach a replacement picket using 1 5/8-inch deck screws.
- Stand the gate in the fence opening and on top of a 2x4; slip a wedge underneath the gate to raise it to the proper height.
- Leave a ½-inch space between the gate and fence post.
- Drill pilot holes into the fence post.
- Fasten the hinge to the fence post with lag screws.
- Install the second gate, leaving a 1-inch space between the two gates.
- Drill pilot holes in the second fence post.
- Fasten the hinge to the post with lag screws.
- Remove the wedge and 2x4 blocking from underneath the gates.