Durable and Resistant to Extreme Weather All organic materials decay over time. Eventually, even the most well-constructed wooden garages will experience rot and require significant repair. Insects like termites can also create major problems for wooden structures. Steel garages will stand up to extreme weather conditions including rain, snow, wind, and earthquakes. In addition, steel won’t warp or bend over time the way wood can. Wood requires painting or sealing in order to avoid rot and corrosion, unlike galvanized steel. Galvanized steel is also much easier to maintain than wood. Most often all it needs is an occasional power washing. Without much effort at all, your metal garage will last years or even decades.