Galvanized Steel Carports

When protecting your vehicles, RVs, or equipment, you generally face three options: cheap canvas kits from big-box home improvement stores, massively expensive stick-built garages, and Galvanized Steel Carports.

Galvanized steel carports sit in the perfect middle ground. While they require a higher initial investment than a temporary pop-up shelter from Home Depot, they deliver decades of certified structural stability. They will not dry-rot in the sun, snap in the wind, or collapse under the first heavy snowfall.

Because they lack fully enclosed walls, these open-air structures are highly versatile and represent the foundation of the metal building industry. By understanding the structural elements, roof configurations, and necessary anchoring systems, you can ensure your carport provides generations of reliable shelter.

If you’d rather have a fully enclosed structure instead of an open carport, compare this page against steel garages.

[!TIP] The roof style you choose here determines how much bracing and truss reinforcement you need. Cross-reference your pick against the bracing gallery before finalizing a quote.

1. Roof Configurations (Including the “Standard” Roof)

The industry uses specific terminology for roof designs. Often, when people refer to a “standard carport,” they are actually referring to a specific, entry-level roof style. Carports are available in three distinct roof configurations:

• The “Standard” (Regular Style / Curved-Corner): This is what most people picture when they hear “standard carport.” It is the most cost-effective design. The sheet metal panels run horizontally from front to back, and the roof bends downward over the frame sides, creating a rounded look. This style is best suited for mild climates with minimal snow or rain.
• Boxed Eave Style (Horizontal A-Frame): Features a traditional A-frame structure with horizontal roof panels and custom eave trims. It mimics residential rooflines, matching the look of standard wood homes. Like the Regular Style, its horizontal panels are best for areas that do not experience heavy snowfall.
• Vertical Style (A-Frame): The premium and strongest configuration. The roof panels run vertically (peak-to-eave), allowing rain, snow, and leaves to slide off unimpeded. This style includes a ridge cap and cross-bracing hat channels that significantly increase the roof’s load-bearing capacity. Vertical roofs are strongly recommended for areas with tree coverage or high snow loads.

2. Anchoring Open Structures Against Wind Uplift

Because open carports do not have side walls to deflect the wind, they are highly vulnerable to aerodynamic lift forces:

• Wind Tunnel Effect: Wind can blow underneath the roof canopy, creating vertical uplift forces that attempt to lift the posts straight out of the ground, much like a parachute.
• Concrete Anchoring: For the highest level of security, carports should be bolted to a concrete slab or concrete footings using heavy-duty expansion wedge anchors.
• Auger Anchors for Dirt/Gravel: If installed directly on compacted soil or a gravel pad, helical ground anchors (mobile home anchors) are absolutely mandatory. These corkscrew deep into the earth to resist upward pull.
• Asphalt Anchors: Standard rebar pins are insufficient for asphalt. Specially designed barbed asphalt anchors must be driven into the surface to ensure structural compliance.

3. Corner Bracing and Structural Stability

To prevent a freestanding roof canopy from swaying or racking (leaning side-to-side) under heavy winds, diagonal support elements are critical:

• Knee Braces (Corner Braces): Diagonal steel braces must be installed on the leg columns. Typically, a standard carport comes with four corner braces (one on each corner leg).
• Extended Bracing: For taller structures (such as RV covers) or buildings in high-wind regions (like California coastal zones), upgrading to fully braced systems—where every single leg column is supported by a diagonal brace—is essential. This keeps the frame rigid and prevents the structural screws from shearing under sheer stress.

4. Customizing Your Carport

While carports are open structures, they offer numerous customization options to improve utility:

• Gable Ends: Adding sheet metal to the front or rear roof triangle (the gable) hides the truss framework, increases structural rigidity, and provides additional shade.
• Side Panels: You can add partial side panels (e.g., dropping down a 3-foot panel along the side wall) to block low-angle sun or driving rain without fully enclosing the space.
• Leg Height Modifications: Carports can be ordered with leg heights from 6 feet up to 16+ feet, making them ideal for everything from compact cars to lifted trucks, boats with towers, and Class-A motorhomes.

Roof Style Comparison

Roof Style	Panel Direction	Cost	Best For
Regular (curved-corner)	Horizontal	Lowest	Mild climates, minimal snow/rain
Boxed eave (horizontal A-frame)	Horizontal	Mid	Residential look, low snow areas
Vertical (A-frame)	Vertical, peak-to-eave	Highest	Tree cover, high snow, high wind

For anchoring choices by surface type, see site prep & foundations; for full RV-specific clearance planning, see the RV storage guide.