In this series of posts, I will show you how to build a cantilever sliding gate from scratch. The picture below shows the before-and-after of my project.
I needed to convert my old double wood swing gates to automatic sliding gate, so that I can drive my car in and out without any hassle. There were several options to do this project: 1) Hiring a contractor. It would cost me $5,000~$6,000. 2) Purchasing a kit and installing on my own, e.g. cantilever gate kits from Hoover fence Co. priced for $2636,06 plus tax and shipping, but it would still be a lot of work to assemble and install it. 3) Complete DIY.
After intensive research, I decided to build it from scratches on my own. I chose to build a cantilever style sliding gate so that I wouldn’t have to deal with the pavement to put down the track. Galvanized pipes was picked for the gate framing for its low cost. According to online resource, I chose O.D. 2-3/8″ (Outside Diameter) pipe for the frame, and 4″ for the post. My existing gate opening is 12′ wide, so I needed to build a 18′ wide gate. Height would be 5′ for mounting with 6′ long wood fencing boards. In order to “clamp” the 5′ gate frame between sets of roller wheels, the post above ground is 6′ tall, that means, the post below the ground should be no less than 3′ long. This gave the total length of the post as long as 9′. Gear driven gate opener was decided against chain-driven for its low noise and smooth transition. And nylon roller wheel also won my bid for the same reason.
After hard work by myself (just one person except for one moment when I asked a favor of my wife) on weekends over almost 3 months, I finally finished my cantilever sliding gate! And here are some useful information.
Total cost: about $1,500 including
Nylon cantilever rollers: $300.
Bracket & hardware: $50
Wood fencing adapter
Gear rack mounts
PVC conduit: $20
Hole saw: $30.