48" x 84" Commercial Hollow Metal Doors – Knock-Down Frame Assembly, Premium Insulated Packages

Upgrade your commercial entry with a full-height, extra-wide steel door system designed for superior security, energy efficiency, and long-term performance. Our 48" x 84" commercial hollow metal door packages pair a heavy-duty, USA-made steel door with a precision-engineered knock-down (KD) frame for fast, accurate installation on site.

Unlike cheap imports, our doors are built from galvannealed steel for exceptional corrosion resistance and feature a premium insulated polystyrene core — delivering a quieter, more energy-efficient, and longer-lasting entry solution.

The KD frame ships in three pieces for reduced freight costs and easy handling, then assembles quickly on site for a perfect fit. Prepped for commercial hardware, these doors are ready to handle heavy traffic in schools, offices, industrial buildings, and public facilities.

Key Benefits

• USA-Made Quality: Built from galvannealed steel for maximum durability and rust protection
• Premium Insulated Core: Energy-efficient polystyrene insulation for comfort and noise control
• Fast Installation: KD frame assembles on site; no specialized tools required
• Flexible Mounting: Fits wood or metal stud walls with multiple anchor options
• Ready for Hardware: Standard commercial hinge and lock preps included
• Upgrade Options: Vision lites, louvers, ADA hardware, fire ratings, and custom prep available

Ideal Applications

Perfect for new construction or replacement projects in:

• Educational facilities
• Corporate offices
• Industrial and warehouse environments
• Public and municipal buildings