Spec-Dor — helping architects and contractors build hangars operators can count on.
Established in 1972, we have over 50 years of installation experience with every type and size of hangar, including some of the largest wide-span bottom rolling hangar doors.
Our doors are designed for precision control, advanced security, and rock-solid reliability—engineered to meet the most rigorous structural requirements for any door dimensions. We provide end-to-end service: initial design, in-house fabrication, meticulous installation, and ongoing client support.
Built to handle extreme operational conditions, our hangar doors earn the trust of civilian and military aviation clients worldwide.
Our focus is on the mechanical reality of aircraft hangar doors. As a company founded and led by engineers, we make doors that do not quit under peak operational conditions.
Our experience building heavy-duty large-span hangar doors is applied to every project, with absolute structural rigidity, overperforming components (not just adequate), near-airtight sealing, and user-friendly controls. Every component is engineered to meet our high performance standards, consistently exceeding building code minimums.
To learn more, the Spec-Dor Buyer’s Checklist provides a point by point overview of critical, often underexamined door details. Our free downloadable Hangar Door Buyer’s Guide goes more in-depth in a quick, illustrated read.
At Spec-Dor, our signature is an unwavering focus on detail at every step — from design and manufacturing to installation and long-term operation — wherever the project is located.
We work with architects, builders, and operators to deliver seamless door integration
proactive coordination ensures projects stay on schedule and within budget.
reduces component costs and lead times while maintaining strict quality.
hangar doors customized to withstand specific harsh climates and demanding operational environments.
fully-integrated, near air-tight door seals provide superior protection from weather, dust, debris, and pests.
ergonomic systems optimized for fast, precise response, friendly interfaces, and enhanced safety.
Spec-Dor delivers end-to-end service, from design through installation, anywhere in the world.
By collaborating closely with architects, contractors, and operators, Spec-Dor applies insights and best practices drawn from decades of hangar door experience. Our input helps identify and address common design and installation issues before problems arise. The result: time and cost savings both during construction and across long-term operation.
Trusted worldwide, built on decades of client confidence
Strength you can count on every time.
Trusted worldwide, built on decades of client confidence
Smart design, efficient value.
Spec-Dor has been in the hangar door business for 50+ years, designing, fabricating and installing both metal & fabric hangar doors. We know that different projects have different requirements and our unique experience with both types of doors can help architects, builders and operators make the best choice
