Commercial ISO-Dor Insulated Steel

Insulation, strength, and size all come together in the ISO-Dor Insulated Steel SI2424A from Fimbel ADS—delivering uncompromising performance in the most demanding commercial environments. Built with a laminated sandwich panel construction and a robust 30 PSF wind load rating, this door is engineered to handle just about anything. Its 20-gauge pre-painted flush steel skins go beyond industry standards, while interlocking tongue-and-groove joints create a tight seal that maximizes durability and thermal efficiency. At 2 1/8” thick with a high-density, CFC-free foam core, the ISO-Dor boasts an impressive R-value of 13.62—ideal for temperature-sensitive operations.

Heavy 16-gauge end stiles and EPDM weather stripping on top and bottom ensure long-term resilience against the elements. Available in widths up to 40 feet and heights up to 18 feet—with custom sizing and color options—the ISO-Dor combines rugged performance with refined versatility. Whether it’s a warehouse, distribution center, or specialty facility, this door gets the job done with serious style and strength.

Please email sales@fimbelads.com to discuss your next project.