SDI Rolling
Steel Doors
SDI Rolling Steel Service Doors are manufactured in-house in Canada for industrial and commercial settings. Built to last, these doors provide years of trouble-free operation and easy repairs. With a variety of operations and mounting methods, these doors are a versatile and attractive choice for yo
Why Steel Doors
Canadian
Every SDI door is manufactured in-house at their Mississauga, Ontario facility — ensuring quality control from steel slat to finished product.
Reliable
Built with structural angle guides, steel plate brackets, and heavy duty cast throats for years of smooth, trouble-free performance.
Repairable
Designed for fast, cost-effective repairs. Aluminum bottom bars and structural guides are more durable and easier to service than roll-formed alternatives.
Key Features
- Rugged 3” flat slats or curved slats in 22, 20, or 18 ga. steel
- G90 galvanized curtain and hood does not require further painting
- Structural angle guides and aluminum bottom bar are more durable and easier to repair than roll formed shapes
- Steel plate brackets are more durable than stamped steel bracket plates
- Heavy duty cast throats are more durable than stamped steel stops
- Chain Hoist: BC, FC, FC22
- Motor (Belt drive or Gear Head): BM, FM, FC22
Why Steel Doors
Canadian
Every SDI door is manufactured in-house at their Mississauga, Ontario facility — ensuring quality control from steel slat to finished product.
Reliable
Built with structural angle guides, steel plate brackets, and heavy duty cast throats for years of smooth, trouble-free performance.
Repairable
Designed for fast, cost-effective repairs. Aluminum bottom bars and structural guides are more durable and easier to service than roll-formed alternatives.