3220, 3221, 3222

These roll-formed steel sections are 2" thick, hot-dipped and galvanized 20 gauge steel with a baked-on polyester finish. Section joints on these - and all C.H.I. doors - are tongue-and-groove for a tighter weatherseal and structural rigidity. They are also constructed with heavy-duty 18 gauge stiles for enhanced longevity.

The models 3221 and 3222 come with a polystyrene insulation and an R-value of 6.81. The model 3221 has a high-impact vinyl backer, and the model 3222 has a steel backer.