0.218 x 3 x 10'' Custom Size Mini Warehouse Self-Storage Roll Up Garage Door Spring (Left Wound)

This high-tension roll up door spring is manufactured from Class 11 oil tempered steel wire to deliver consistent torque and dependable lifting performance for mini warehouse and self-storage roll up doors. Designed for commercial storage door systems, the spring helps support the smooth rolling and controlled coiling of metal sheet doors around the drum above the doorway, maintaining proper door balance and easier operation. The heat-treated corrosion-resistant finish helps protect against rust and environmental exposure, making it suitable for long-term use in both indoor and outdoor storage facilities. Built to meet ASTM A229 material standards, this spring provides high tensile strength and long cycle durability for demanding commercial applications. It is compatible with many common roll up door systems used in self-storage facilities and mini warehouses, including brands such as DBCI, Janus, Betco, Trac Rite, Porvene, B&D, Steel-Line, and other similar roll up door assemblies.

• RESTOCKING FEES APPLY - THIS IS A CUSTOM MADE ITEM, THESE SPRINGS ARE MADE TO ORDER ------ MAKE SURE YOU BUY THE RIGHT SIZE NEEDED ------- a 50% restocking fee applies even if RETURNED in original condition/packaging. Returns with damages may be subject to a 100% restocking fee, in accordance with Amazon's return policy.
• HIGH-TENSION OIL TEMPERED STEEL – Manufactured from Class 11 oil tempered wire to deliver consistent torque and dependable operation for mini warehouse and self-storage roll up doors.
• CORROSION-RESISTANT COATING – Heat-treated surface helps resist rust and environmental exposure, supporting long-term use in indoor and outdoor storage facilities.
• DESIGNED FOR ROLL UP DOORS – Engineered to support smooth rolling and controlled coiling of metal doors around the drum above the doorway in self-storage and mini warehouse applications.
• BROAD MANUFACTURER COMPATIBILITY – Suitable for use with many roll up door brands including DBCI, Janus, Betco, Trac Rite, Porvene, B&D, Steel-Line, and similar systems.
• ASTM A229 COMPLIANT – Manufactured to meet ASTM A229 material standards and designed for long cycle life in commercial and self-storage door environments.