Cantilever Gates – How to Design a Cantilever Gate Frame

A cantilever gate uses a clever system tucked behind your fence that suspends the gate and allows it to glide through air, rather than be forced along the ground like a traditional sliding gate. This can be a great option for surfaces that are curved, organic, or gravel driveways and helps to ensure your gate has an extremely long lifespan as it does not come into contact with the ground at any point.

Cantilever gates can be used in a number of different applications, including commercial and industrial sites. However, the most critical factor to consider when designing a cantilever gate is the opening width and selected infill type. These factors will directly affect the type of structural gate frame needed to support the cantilever gate for both weight and wind loading.

The Ultimate Guide to Cantilever Gates: Design, Installation, and Maintenance

Gate frames are constructed out of steel tubular or aluminum box section and typically feature welded diagonal bracing to improve rigidity, resist sag, and absorb wind loads. The size and height of the gate will also directly affect the frame design as well as load-bearing post and footing selection. For example, taller gates will place greater loads on the gate posts and may require more substantial footers to prevent damage or collapse.

In addition, the height of a cantilever gate will significantly increase the amount of wind load that is placed on the structure. A greater wind load will put more stress on the structural members that hold the gate up, causing them to be subject to increased fatigue and potentially failure. This is one reason why it is important to consult with a trusted and experienced professional when selecting a cantilever gate.