IRON BARS is made by splicing PLUMBING and DEATH SPIKES. IRON BARS is in building category. Less than hour this seed takes to grow. Low level players can use these to level up. IRON BARS can be broken. You get at least 1 seed back (maybe more!) from splicing IRON BARS. Gemratio of IRON BARS is a mystery. Maybe you can check the wiki for <a href="https://growtopia.fandom.com/wiki/Iron_Bars">iron bars</a> Will you get enough blocks to build something? You just have to find out yourself.