Steel edge steel doors are available in two options: Therma-Tru and Reeb Specialty Products (RSP).
They are both constructed of 24-gauge steel with a full steel-edge perimeter creating a sturdier steel door.
The lock area is reinforced with a composite lock block for better structural integrity and security for door hardware.
These doors are insulated with a polyurethane core and are available with a 90-minute fire rating when used with a 90-minute fire rated frame.
Some people prefer the metal edge construction for extra strength and rigidity. Note: Reeb no longer offers Therma-Tru steel-edge doors. This information will remain available as a reference.
Steel doors are cost-effective and provide good insulation, however they can dent easily and are prone to rust in some exposures.
Depending on the temperature outside, steel doors can be hot or cold to the touch.