Truck bed rack made from pure steel is the strongest and will last for a long time. They are also able to withstand any tough weather condition you may park or drive your car. It should be set in four corners. This will enhance its performance strength. However, if you prefer a different shape you can go for it.Corrosion is something that can affect the quality of metal and avoid it at all costs. This calls for a good protective measure for your truck bed rack.