How to Choose a Cattle Guard for Your Property
Choosing a cattle guard starts with the crossing itself. The right design depends on what vehicles will use it, how wide the roadway is, what livestock needs to be contained, and how the cattle guard will be supported and installed.

Barn World's cattle guards are available in different sizes, load ratings, rail designs, and installation configurations. Working through the following decisions before ordering can help narrow the selection.
Start With the Purpose of the Crossing
First, consider how the crossing will actually be used. A cattle guard at a lightly traveled pasture entrance may have different requirements from one carrying loaded feed trucks, large trailers, or other heavy equipment.
Consider:
- The types of vehicles using the crossing
- The heaviest expected vehicle loads
- How frequently vehicles will cross
- The roadway width
- The livestock on the property
- The surrounding fence layout
- Site drainage and ground conditions
- Whether the crossing is on private property or a public roadway
These details provide a much better starting point than choosing a cattle guard based only on its overall dimensions.
Determine the Required Crossing Size
Cattle guard size needs to work with both the roadway and the livestock barrier. Width across the roadway must accommodate the vehicles using the crossing, while the dimension in the direction of travel helps create the physical barrier that discourages cattle from crossing.
Barn World offers cattle guards in several roadway-spanning lengths, including 8, 10, 12, 14, 16, 18, and 20 feet.
Our guide to cattle guard dimensions and standard sizes explains the measurements in more detail.
Choose a Load Rating for the Vehicles
The cattle guard must be capable of supporting the traffic that will cross it. A pickup traveling through a pasture and a heavily loaded commercial truck place very different demands on the structure.
Barn World cattle guards are available with several load ratings for different applications:
| Load Rating | Maximum Axle Load |
|---|---|
| H-15 | 12 tons per axle |
| H-20 / HS-20 | 16 tons per axle |
| U-54 | 25 tons per axle |
| U-80 | 30 tons per axle |
Consider the heaviest vehicle likely to use the crossing, including future traffic. Public-road projects may also have load-rating and engineering requirements established by the responsible road authority.
Round-Top or Flat-Top Rails?
Rail design affects both livestock deterrence and the vehicle crossing.
Round-top rails create a more pronounced uneven surface and are commonly used for lower-speed farm, ranch, and private-road applications. Vehicles generally experience more vibration when crossing round rails.
Flat-top rails provide a smoother surface for vehicle tires and can be useful where traffic crosses more frequently or at higher speeds.
The best choice depends on vehicle traffic, crossing speed, livestock, and the intended use of the entrance.

Decide How the Cattle Guard Will Be Supported
The installation method is another major selection factor. Some cattle guards are designed for traditional foundation installations, while other configurations may be available for applications where a different support system is appropriate.
Whichever design is selected, the cattle guard needs proper structural support. Vehicle loads must be transferred through the cattle guard and its supports into stable ground.
Site preparation should also account for drainage, soil conditions, roadway approaches, and erosion.
See Barn World's cattle guard installation and site preparation guide before planning the crossing.
Consider the Animals on the Property
Cattle guards are designed primarily to discourage cattle from crossing. They should not be assumed to provide the same barrier for every animal.
Horses are particularly important. Barn World does not recommend relying on cattle guards to contain horses because crossing one can expose a horse to serious hoof or leg injury.
Goats, dogs, and other animals may also be capable of crossing cattle guards. If the property contains multiple types of livestock or animals, determine whether a gate or another barrier is also necessary.
See our guide to cattle guards for different animals for additional guidance.
Plan the Fence Connection
The cattle guard needs to work with the surrounding fence. Leaving openings around the ends can allow livestock to bypass the crossing entirely.
Cattle guard wings can help transition the fence line to compatible cattle guard installations and close the area around the ends of the crossing.

Plan the cattle guard, wings, fence, approaches, and any adjacent gate as one complete crossing rather than treating each component separately.
Check Public-Road Requirements Before Ordering
A cattle guard installed on a public roadway may be subject to requirements that do not apply to a private farm or ranch entrance.
The responsible state, county, municipal, or other roadway authority may specify load rating, engineering documentation, dimensions, foundations, placement, or other construction requirements.
Confirm those requirements before purchasing the cattle guard so the selected configuration matches the project specifications.
Information to Have Before Requesting a Quote
Having the basic crossing information ready makes it easier to identify an appropriate cattle guard. Before requesting a quote, gather:
- Required roadway width
- Desired cattle guard dimensions
- Heaviest expected vehicle or axle load
- Round-top or flat-top rail preference
- Private-road or public-road use
- Livestock using the property
- Foundation or installation requirements
- Need for wings or other accessories
- Delivery location
Choosing the Right Cattle Guard
A cattle guard is part of an entire vehicle and livestock crossing. Size, load rating, rail design, foundation, drainage, fencing, livestock, and vehicle traffic should all be considered together.
Once those requirements are identified, Barn World can help narrow the available cattle guard configurations and prepare a quote for the project.