CHCR-7/8: 7-foot Carriage House Conversion Rail

The Nortek Security & Control Family of Brands

Bolt-on I-rail conversion kit for carriage house doors, fits HBT7C, HCT7C, HBT8C, and HCT8C belt and chain drive rails.


  • For use with carriage house garage doors
  • Converts standard T-rail to stronger I-rail
  • 7-foot length
  • Compatible with Model HBT7C, HCT7C, HBT8C, and HCT8C belt and chain drive rails
  • All conversion hardware included
  • One-piece rolled steel construction
  • Interchangeable with LSO and LDO heads
  • Replacement parts diagram¬†click here.
Models compatible with the CHCR-7/8
Model Description
HBT7C 7-Foot Belt Drive Rail
HCT7C 7-Foot Chain Drive T-Rail
HBT8C 8-Foot Belt Drive T-Rail
HCT8C 8-Foot Chain Drive T-Rail

Installation Manual

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