Karfe farantin karfe ne da aka jefar da narkakkar karfe kuma ana matse shi bayan an sanyaya.An yi shi da farantin lebur ko tsiri na karfe, wanda za a iya yanke shi kai tsaye zuwa siffar rectangular. Ana rarraba farantin karfe gwargwadon kauri.Farantin karfe mai kauri bai wuce 4mm ba (mafi ƙarancin 0.2mm), farantin karfe mai kauri shine 4 ~ 60mm, kuma ƙarin kauri mai kauri shine 60 ~ 115mm. Ana rarraba faranti na ƙarfe zuwa na'ura mai zafi da sanyi mai birgima daidai gwargwado. Nisa na takarda shine 500 ~ 1500 mm;Nisa na kauri shine 600 ~ 3000 mm.Thin faranti sun kasu kashi talakawa karfe, high quality-karfe, gami karfe, spring karfe, bakin karfe, kayan aiki karfe, zafi-resistant karfe, hali karfe, silicon karfe da kuma masana'antu tsarki baƙin ƙarfe bakin ciki faranti;Bisa ga ƙwararrun amfani, akwai farantin ganga mai, farantin enamel, farantin karfe, da dai sauransu;Dangane da rufin saman, akwai takardar galvanized, takardar tinned, takardar da aka yi da gubar, farantin karfe mai hade da filastik, da sauransu.