Cornerstone

Tradition Meets Beauty and Quality

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Tradition Meets Beauty and Quality
Constructed from high-quality steel, the Cornerstone model is the timeless garage door made to complete any home. This low-maintenance door can be customized to add value and individuality.

i1 Steel
Get value and durability with this non-insulated Cornerstone steel door. These heavy-duty steel doors are durable, reliable and low-maintenance.

  • 2” thick door construction
  • Dependable, durable, minimal upkeep

i3 Steel + Insulation + Steel
This insulation construction provides a fully insulated R8 value that is durable, and has minimal upkeep.

  • 2” thick door construction
  • Eco-friendly insulation
  • Energy efficient
  • Quiet operation

i4 Steel + Insulation + Steel
For the strongest, energy-efficient steel door, this high tensile steel door includes superior eco-friendly insulation plus a layer of steel for a finished interior look and added strength.  The Cornerstone door construction provides a fully insulated R14 value.

  • 2” thick door construction
  • Eco-friendly insulation with heavy-gauge continuous white steel-backing
  • Excellent energy efficiency
  • Very quiet operation