The Best Material Choices For Modern Iron Gate designs The best material selection process considers The safety requirements Durability Environmental conditions Maintenance capabilities Aesthetic appeal To satisfy the safety standards, the more importance is to be given to the strength and quality of the gate material. And the selected gate material should provide long life term span. The list of standard materials used for gate designs are as below Wrought Iron Stainless steel Aluminium Generally the steel gates are more expensive than iron gates.