Choosing a “Forever” Fence: Strength vs. Corrosion Resistance
In the Dallas-Fort Worth area, ornamental fencing is the gold standard for pool safety, estate boundaries, and modern curb appeal. When you begin shopping, you will quickly encounter two primary materials: Galvanized Steel (Ornamental Iron) and Aluminum.
While they look nearly identical from the curb, they perform very differently in the Texas environment. At Fence Supply Inc., we believe in matching the material to your specific terrain and lifestyle. Here is how they stack up.
1. Ornamental Steel (The “Iron” Standard)
Most “wrought iron” fences sold today are actually galvanized steel. These panels are treated with a zinc coating and then powder-coated for a durable finish.
- Strength: Steel is significantly stronger and more rigid than aluminum. It can withstand the “leaning” pressure of a large dog or the accidental impact of a lawnmower without bending.
- Security: Because of its weight and density, steel is much harder to cut or bypass, making it the superior choice for security-focused perimeters in Sunnyvale or Rockwall.
- The “North Texas Lean”: Because steel is heavy, it requires deeper, more substantial concrete footings. However, once set in our clay soil, a steel fence provides a rock-solid barrier that won’t “wiggle” over time.
2. Aluminum Fencing (The Corrosion Specialist)
Aluminum has gained massive popularity in coastal areas, but it also has a specific place in the North Texas market.
- Rust-Proof: Unlike steel, aluminum does not contain iron, meaning it cannot rust. This makes it the perfect choice for the “splash zone” of a saltwater pool or properties with heavy irrigation or chemical runoff.
- Weight: Aluminum is incredibly lightweight. This makes it easier to install as a DIY project, but it also means the pickets are more prone to bending if struck by a heavy object.
- Cost: Generally, aluminum is more budget-friendly than high-grade galvanized steel, though premium “heavy-wall” aluminum can approach steel prices.
3. Comparison at a Glance
| Feature | Galvanized Steel (Iron) | Aluminum Fencing |
| Material Strength | Very High (Rigid) | Moderate (Flexible) |
| Rust Resistance | Excellent (Zinc-coated) | Absolute (Rust-proof) |
| Wind Resistance | High | High (Lightweight/Aerodynamic) |
| Impact Resistance | High (Great for dogs/kids) | Lower (May dent or bend) |
| Installation | Heavy / Requires Brackets | Light / “Punch-through” Rails |
4. Rackability and Slopes
North Texas isn’t flat, and your fence needs to follow the contour of the land to remain Pool Code compliant.
- Aluminum: Most aluminum panels are “highly rackable,” meaning they can tilt significantly to follow a steep hill without needing to be “stepped.”
- Steel: While some steel panels are rackable, many require a “stepping” installation method on hills, which creates a stair-step look. If you have a steep grade in Murphy or Forney, ensure you buy the correct “Rackable Steel” panel.
5. Maintenance: The “Powder Coat” Factor
Both materials typically come with a Powder Coated finish, which is far superior to standard paint.
- Steel: If the powder coat is scratched deep enough to reach the metal, you must touch it up immediately to prevent rust from spreading.
- Aluminum: If the finish is scratched, the metal underneath will simply oxidize (turn a dull gray) but will not lose structural integrity.
The Verdict: Which One Should You Buy?
- Choose Galvanized Steel if: You have large dogs, children who play near the fence, or a primary focus on security and long-term structural rigidity.
- Choose Aluminum if: You are fencing a saltwater pool, live in an area with high moisture, or want the easiest possible DIY installation experience.
Ready to Upgrade Your View?
We stock professional-grade ornamental steel and aluminum systems designed to meet Texas pool codes and estate standards. Visit our East Dallas yard to feel the difference in weight and strength for yourself.
