Hi guys I'm constructing a steel frame garage at the moment. I am wanting to galvanize the steel to protect it from rusting. I will be using steel box section for the frame. I've looked at hot dip galvanizing and it is expensive it also has the potential to warp the steel due to the heat. As I am making a frame then galvanizing it before assembly onsite any potential warping could cause major issues. I had seen cold galvanizing paint but I can't find an effective method to get the paint inside a 4.2 metre length of box section. So the material could rust from the inside out. I have considered zinc electroplating. Might sound like a crazy idea but I am a scientist so in theory it is possible. I would need to construct a large container to coat the material in. What are people's thoughts on this? Any suggestions welcome.