18x21 I-Beam Carport
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18×21 Carport
An 18×21 carport from General Steel is a great fit for car owners looking to shelter multiple vehicles. An 18×21 metal carport is large enough to protect a variety of vehicles, from compact cars such as a Chevy Cruze, all the way up to SUVs and trucks such as a Chevy Colorado. If you’re building a carport in a volatile climate, we recommend the strength and durability of an I-beam structure.
General Steel CarportsFraming Detail, Warranties and Service
Tube Frame Carport vs I-Beam Carport
Our 18×21 carport is an effective alternative to a fully inclosed base building package. Featuring high strength roof sheeting and all I-beam construction, this carport is unmatched by other carport products and offers accessible protection for your automobile, camper or other property you need to store safely.
I-Beam Pros
- Designed with local weather in mind
- 50 year structural and 40 year paint warranties
- All bolt together construction
I-Beam Cons
- Delivery timelines typically longer
- Higher initial investment
- Cannot be smaller than 16' wide
Tube Frame Pros
- Low initial investment
- 12' wide carports are possible
- Fast delivery timelines
Tube Frame Cons
- More susceptible to failure under duress
- No warranties offered
- Limited sizes
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