
Manufacturer Warranty
Explains Best National Carports warranty coverage, common terms, exclusions, and claim preparation.
Best National Carports Warranty Overview
Product and installation warranties are issued and honored by Best National Carports under its current written warranty terms. Coverage depends on frame gauge, installation conditions, product configuration, maintenance, and exclusions. Confirm the warranty supplied with your order before purchasing.
1. 20-Year Rust-Through Warranty (12-Gauge)
12-gauge galvanized steel framing comes with a 20-year limited warranty against rust-through on the frame.
- Coverage: Protects against structural failure caused by corrosion of the steel tubing.
- Maintenance: To keep the warranty active, the building must be kept free of debris and standing water against the base rails.
2. 10-Year Rust-Through Warranty (14-Gauge)
Standard 14-gauge framing includes a 10-year limited warranty against rust-through. It is commonly used for smaller structures in moderate exposure areas.
3. Workmanship Coverage
Best National Carports provides and manages applicable workmanship coverage for its installation crews.
- Coverage: Protects against leaks, loose panels, or alignment issues caused by the installation process.
- Response: Best National Carports reviews workmanship claims and determines inspection, repair, and coverage under its current written warranty terms.
4. Manufacturer Exclusions
Warranties may be voided if:
- The building is modified by the customer (cutting legs, adding non-factory components).
- The site is not level within 3 inches.
- Abnormal environmental conditions (e.g., direct salt spray or chemical exposure) are present without prior disclosure.
5. How to File a Claim
If you believe your structure has a warranty-eligible defect:
- Documentation: Take clear photos of the issue.
- Contact: Call Norcal Carports at (916) 385-2138 for help identifying the correct Best National Carports warranty process.
- Manufacturer Review: Best National Carports reviews warranty eligibility and determines the inspection or service response under its written terms.
Advice: Keep a copy of your original signed contract and installation walkthrough form to expedite any future service requests.

Michael Ruiz
Founder & Steel Structures Expert Northern California
Michael Ruiz started Norcal Carports to help customers compare steel-building options, prepare accurate order details, and coordinate delivery and installation with the manufacturer.
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