Customizing a 40×60 metal building with windows, doors, mezzanines, or architectural finishes adds $5,000 to $25,000 to your base cost. While upgrades improve function and aesthetics, they should match your budget and intended use. Balance essential features with long-term benefits.
1. Doors and Windows:
Adding roll-up doors, walk-in doors, or windows improves access and natural light but increases costs. Windows cost $200–$800 each, while roll-up doors can be $1,000+. Choose placement based on workflow and layout.
2. Mezzanine or Loft Areas:
Adding a loft for storage or office space can increase steel and slab load requirements. This customization can add $5,000–$15,000 depending on materials and access stairs.
3. Interior Framing and Walls:
Interior partitioning for offices, bathrooms, or break rooms adds labor and materials. Framing, drywall, and utilities could raise costs by $10,000 or more. Prefab interior kits are cheaper alternatives.
4. Exterior Appearance:
Upgrades like wainscoting, color-matched trims, overhangs, or faux stone panels improve curb appeal. These add aesthetic value but cost extra. Some homeowners’ associations may require these enhancements.
5. Electrical and Plumbing:
Adding wiring, outlets, lights, plumbing, and drains adds $5,000–$15,000. Even basic lighting and breaker panels require professional installation. Commercial or residential use mandates code-compliant utility setups.