Chain link fencing is a ubiquitous sight, providing security and defining boundaries for residential, commercial, and industrial properties. While posts and wire mesh are the readily apparent components, a crucial element often overlooked is the tension bar. This seemingly simple component plays a vital role in ensuring the fence's longevity, strength, and overall appearance. This guide dives deep into the world of tension bar chain link fences, explaining their function, installation, and the benefits they offer.
What is a Tension Bar in a Chain Link Fence?
A tension bar, also known as a tension wire, is a strong, typically galvanized steel bar installed horizontally along the top and sometimes the bottom of a chain link fence. Its primary function is to pull the fence fabric taut, preventing sagging and ensuring a secure, aesthetically pleasing fence line. These bars are crucial for maintaining the integrity of the fence over time and resisting external forces like wind and pressure.
How Does a Tension Bar Work?
Tension bars work in conjunction with the terminal posts (end posts) of the fence line. During installation, the fabric is stretched and secured to the terminal posts. The tension bars are then tightened using turnbuckles or similar mechanisms, pulling the fence fabric tightly against the posts and creating a strong, uniform tension across the entire length. This process significantly increases the fence's strength and stability, preventing sagging and potential damage.
Types of Tension Bars
While most tension bars are made of galvanized steel for corrosion resistance, variations exist in terms of size and design:
- Standard Tension Bars: These are the most common type, offering sufficient tension for most residential and smaller commercial applications.
- Heavy-Duty Tension Bars: Designed for areas requiring increased strength, such as high-wind zones or locations with significant security concerns. These often have a larger diameter and greater tensile strength.
- Top and Bottom Tension Bars: While top tension bars are standard, adding bottom tension bars further enhances stability and prevents sagging, especially in taller fences.
Why are Tension Bars Important?
The importance of tension bars in chain link fence construction cannot be overstated. Here are some key benefits:
- Increased Fence Strength & Durability: By pulling the fabric taut, tension bars significantly increase the overall strength and durability of the fence, making it more resistant to damage from wind, animals, and other external forces.
- Improved Aesthetics: A taut fence looks far more professional and appealing than a sagging one. Tension bars ensure a neat, aligned appearance, enhancing the curb appeal of your property.
- Enhanced Security: A tight, secure fence provides a more effective barrier against intruders. Sagging fences can easily be compromised, making tension bars a vital component for security applications.
- Longer Fence Lifespan: By reducing stress on the fence fabric and posts, tension bars help to prolong the overall lifespan of the fence, saving you money on repairs and replacements.
What are the common problems with tension bars in chain link fence?
How do I tighten a loose tension bar in a chain link fence?
A loose tension bar often manifests as sagging in the fence fabric. Tightening typically involves adjusting turnbuckles located at the ends of the tension bar. This requires loosening the lock nut, turning the threaded barrel to increase tension, and then re-tightening the lock nut to secure the adjustment. If you are uncomfortable performing this task, it is best to contact a fencing professional.
How often should tension bars be checked?
Regular inspections, especially after severe weather events, are recommended. Check for any signs of loosening, damage, or rust. Addressing issues promptly prevents further damage and maintains the integrity of the fence.
Can I install a tension bar myself?
While technically possible, installing tension bars correctly requires experience and specialized tools. Improper installation can lead to a weakened or unstable fence. For best results, consider hiring a professional fencing contractor.
What materials are tension bars made from?
Most tension bars are made from galvanized steel, chosen for its strength, durability, and corrosion resistance. This protects against rust and ensures a long lifespan.
By understanding the crucial role of tension bars, you can ensure your chain link fence remains strong, secure, and aesthetically pleasing for years to come. Remember, proper installation and regular maintenance are key to maximizing the lifespan and effectiveness of your fence.
