Chain Link Cantilever Gates
CANTILEVER SLIDE GATES
One of the types of slide gates is a cantilever gate. Cantilever gates are unique because they don’t roll on the ground. The gate is supported by a series of trucks (rollers) attached to two support posts on one side of the opening. The distance between these posts is usually equal to half the length of the gate opening. Two factors you should consider first when selecting a cantilever gate:
Elevations – Cantilever sliding gates must be installed level. This is both for the most recent standards and codes and for practical safety reasons. A cantilever gate installed that isn’t level will roll downhill. Review the elevations of the finished grade underneath the entire travel of the gate from the nose of the gate in the closed position, to the back of the tail in the full-open position. The highest elevation will be your benchmark. The gate should be set at least two inches above this elevation. If the highest elevation of the gate is at the tail section and the elevation slopes down through the opening, this will cause a considerable gap under the gate at the opening.
Storage for the gate – Cantilever slide gates are approximately 50% larger than the gate opening. So, a 20’ opening would require a 30’ overall gate leaf. This additional 10’ of gate is called the “counter balance” and considered the tail of the gate. Evaluate your site to determine if you have enough room to accommodate the gate opening and the gate storage.
Chain Link Cantilever Gate
This category of cantilever gates is the most common and widely used type of cantilever slide gate. If you have an automated chain link cantilever gate, it should not include gaps greater than 2 ¼” throughout. To accomplish this, chain link fabric can be extended throughout the entire length of the gate. Chain link cantilever gates typically do not have any weight or wind loading concerns as the chain link fabric is 98% open.
Ornamental Cantilever Gate
An ornamental cantilever gate will incorporate vertical pickets into the gate frame at the opening. The size of these pickets is generally ¾” to 1”. In accordance with ASTM A2200 and UL325, the pickets should be spaced so you do not have a gap greater than 2 ¼” throughout the entire length of the gate, in case it ever would be automated. Pickets should not protrude through the bottom rail of the cantilever gate and the bottom rail should be flush. Pickets may extend above the top rail of the gate and be adorned with an ornate cap. Ornamental cantilever gates may also include other adornments throughout the infill area of the gate.
Decorative Cantilever Gate
Decorative ornamental cantilever gates include an infill material that is typically highly decorative but not of a picket design. The gate infill material may include the use of a solid slating, louvers, perforated metal, etc. If it is going to be automated, decorative cantilever sliding gates also require gaps no larger than 2 ¼” throughout the gate. Decorative cantilever gates are classified separate from ornamental slide gates because the mix of infill materials typically causes both wind load and weight concerns for the gate. However, if either of these situations are a potential concern or hazard for your project, ornamental cantilever slide gates with picket infill do not suffer wind and weight distress.
CANTILEVER GATE TYPE
Steel Cantilever Gates – Use round tubular profiles in the design of the gate.
The top and bottom horizontal members are a 2 ½” O.D. tube that runs the length of the gate. This tube serves both as a structural support and as the gates top and bottom tracks. The rollers run on the outside of these tracks.
In-between the vertical members are the diagonal supports. On steel cantilever gates, these are typically 1 5/8” O.D. tubing, however, cable may be substituted.
The vertical gate members are 2” O.D. tube that are spaced no greater than 72” apart.
Aluminum Cantilever Gates – Use extruded aluminum square and rectangular profiles in the design of the gate.
In-between the vertical members are the diagonal supports that can be either a 2” square aluminum or cable system.
The top horizontal member is a custom extruded track and structural member(s) combination. The track is approximately 2 ½” wide by 2 ¾” tall. The trucks (or rollers) run inside the track. The trucks are supported from the bottom of the track and not hung from the top. This prevents water and debris from settling in the track.
The vertical gate members are 2” x 2” spaced no greater than 72” apart.
The bottom horizontal member is a 2” x 2” square (or 5” x 2” rectangle for larger gate openings). Not only does this member provide structural support for the gate but it also serves as the bottom guide.
High Security Cantilever Gate
High security cantilever slide gates include non-climbable or solid surface infill materials. These gates are also kept tight to the ground and are generally very tall. These features help to keep unauthorized personnel out and keep your property secure. Some concerns for high security cantilever slide gates are their wind loading and weight. The solid surfacing or tight non-climbable wire mesh is much heavier and more dense than standard chain link fabric. Designers should pay special attention to site elevations specific to the path of these cantilever gates. Elevation changes in the overall travel of the gate may result in gaps under the gate when installed level.
Both aluminum and steel are excellent choices for automated gates. Aluminum cantilever gates will provide for more consistent travel in the overall travel of the gate as the enclosed track and truck system has tighter tolerances. Aluminum gates are lighter. If you have a very large opening or a very heavy gate by design, you may want to consider an aluminum design as it may require a smaller gate operator or place less stress on the gate operator. With openings under 27’ and typical chain link infill, a steel cantilever gate is an excellent and economical choice.
Derkson Fencing is your go-to provider for cantilever gates in Saskatchewan. Our company supplies motorized cantilever sliding gate systems that are suitable for securing commercial, industrial, and public conveniences. Our gate is made up of sturdy steel and is ideal for road surfaces that are sloping and uneven. You can count on us to manufacture cantilever gates of all sizes with or without barbed wire.
WHY CANTILEVER GATES?
Cantilever slide gate is different from other types of slide gates in hardware, design, and construction. It is free standing and its cantilever runs over the entrance way with the help of wheels at top and bottom. There are 4 wheels that hold the gate on one side of the fence and cantilever across the opening.
Usually, cantilever gates are visually appealing and sure to impress customers, visitors, and owners visiting the commercial or residential property. Contact us now for more information.
BENEFIT FROM CANTILEVER SLIDE GATES
Cantilever gate system is a popular choice for property owners as it is not susceptible to being blocked by dirt or leaves, and requires way less maintenance. It is also a go-to choice while designing a property’s perimeter fence and security system. Below are some of the other advantages of cantilever slide gates:
They are less expensive to automate when compared to swing gates and require only gate operator
Much easier to safeguard than swing gates
Make efficient use of space
Easy to automate and include safety devices
Motorized gate system
Also, when you consider snow removal in different regions, it is much easier for this gate system to keep clear of obstructions.