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Premium-duty 20 gauge and heavy-duty 24 gauge steel insulated garage doors offer long-lasting dependability and quality to meet the rigors of daily use in most commercial applications. The 4 Star door comes in several different insulations
- 1-3/8″ Polystyrene Insulation with a Painted Steel Back Cover
- 1-3/8″ Vinyl-Backed Polystyrene Insulation
- Non-Insulated
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