In the realm of agricultural fencing, the H brace is a cornerstone of strength and stability. This article delves into the evolution of H brace construction, contrasting the traditional methods once prevalent on the East Coast with contemporary techniques. We'll explore the pros and cons of each approach, incorporating the latest insights and recommendations to ensure your fencing stands the test of time and the elements.
The Traditional H Brace: A Look Back
For generations, farmers have constructed H braces by notching vertical posts to support the horizontal beam, with additional notches to guide brace wires. This method, while steeped in tradition, has its drawbacks:
Increased Exposure to Rot: Notching creates more surfaces vulnerable to water infiltration, accelerating the decay of the wood.
Higher Costs: Larger diameter posts are required to compensate for the material removed by notching, leading to increased expenses.
The Modern Approach to H Braces
Today's improved H brace construction eschews notching in favor of a more robust and efficient design:
Use of Spikes: Instead of notching, two galvanized spikes secure the horizontal post to the vertical ones. Brace pins or spikes from reputable hardware stores like Lowe's are recommended.
Drilling Technique: A 3/8" ship auger bit is used to drill through the vertical posts, allowing for precise alignment and insertion of the spikes.
Tight Fit: Pre-drilling is essential, but a hammer will still be necessary to drive the spikes into the tight space, ensuring a secure fit.
Selecting the Optimal Brace Wire
When it comes to brace wire, options abound. Here are some considerations:
Cost Efficiency: Barbless cable from Tractor Supply is a budget-friendly choice, offering double the length at nearly half the price per foot compared to standard brace wire.
Strength: Both barbless cable and 9 gauge brace wire are sufficiently strong, but the former's two strands of 12.5 gauge wire offer a compelling alternative.
Waste Reduction: Longer rolls of barbless cable minimize waste, as shorter leftover pieces from standard rolls may not suffice for additional braces.
Recommended Horizontal Posts
The USDA fencing guidelines suggest that a ten-foot horizontal post can match the strength of a double H brace with eight-foot posts. While this claim warrants further validation, it's worth considering for critical fencing areas, such as gate support. Here's a cost comparison:
Ten-foot Posts: These can be purchased for approximately $14 each from suppliers like Barn Loft.
Eight-foot Posts: A more common choice, these posts typically cost around $9 and offer a balance of strength and value.
In conclusion, while traditional H braces have served well, modern methods and materials offer enhanced durability and cost-effectiveness. By selecting the right components and embracing the latest construction techniques, farmers can ensure their fences remain resilient for years to come.
