Turn the gate over and repeat steps 5 thru 8 on the other side. SHOP ALL FENCING Share. How To Build A Wooden Gate Buildeazy Building A Wooden Gate Gate Post Wooden Garden Gate After digging the post holes the posts should be braced and set in concrete before attaching the rails and pickets. How to install gate posts wooden . We show you some tips and tricks for hanging the gate and what tools you are going to need includi. Predrill and attach the hinges to the posts using lag screws. Fencing Installing Fence Posts. Predrill and then attach the hinges to the gate sections. Adjust the position of the gate until it is the desired height and the hinge brackets are aligned with the vertical line. Gate pickets should be flush with the inside faces of the posts. Once the post is plumb use a scrap board the width of the finished gate as a spacer to keep the correct distance between both posts. This staff then gives you the distance needed between posts and the positions ...