36" Steel Door Trim Kit for Fire-Rated Doors – Adjustable 4.5" to 5.5" Wall Thickness

Designed for tighter wall conditions, this 36" steel door trim kit provides a precise, finished look for fire-rated door installations. Built to pair with standard 36" fire-rated steel doors, it accommodates wall thicknesses between 4.5" and 5.5", making it ideal for interior-to-exterior transitions such as garage entry points. The durable steel construction supports long-term performance while maintaining the integrity required in fire-rated assemblies. Whether used in new construction or replacement projects, this trim kit helps ensure a clean fit and professional appearance around the door frame.

Key Features:

• Compatible with 36" fire-rated steel door units
• Adjustable to fit wall thicknesses from 4.5" to 5.5"
• Steel construction for strength and durability
• Designed for use in fire-rated door assemblies
• Helps create a clean, finished frame appearance
• Suitable for garage entry and utility door applications
• Works with prehung exterior door systems
• Supports proper alignment and consistent installation
• Includes trim components and installation hardware
• Ideal for both remodels and new construction

Browse our collection of exterior doors to find matching fire-rated door options and complete your installation.