Single-Layer: Steel Get value and durability with a Classica 1000 single-layer door. These heavy-duty steel doors are durable, reliable, and low maintenance.
Double-Layer: Steel + Insulation A Classica 2000 double-layer door provides durable, low maintenance features, plus a layer of vinyl-coated insulation for increased thermal properties and quieter operation.
Triple-Layer: Steel + Insulation + Steel For the toughest, most energy-efficient steel door, a Classica 3000 triple-layer door includes the ultimate in thermal properties, plus a layer of steel for a finished interior look and added durability.
* Calculated door section R-value is in accordance with DASMA TDS-163.
1 All insulation has passed fire safety testing.