Timely® Classic Borrowed Light Frames are designed for commercial, institutional, and multi-family construction where a fixed glazed opening is required within a wall assembly. These frames allow light to pass between spaces without incorporating a door, making them ideal for offices, healthcare facilities, schools, and interior commercial environments. Manufactured from hot-dipped galvanized steel, these frames provide corrosion resistance and long-term durability. The prefinished design allows installation after wall finishes are complete, eliminating field painting and reducing labor. Mullions can be incorporated to create multiple glass sections while maintaining structural integrity and design flexibility.

Specifications
Product type: Prefinished steel borrowed light frame
Application: Interior commercial wall openings (non-door applications)
Frame material: Hot-dipped galvanized steel
Series options:
S-Series: 20 gauge steel
C-Series: 18 gauge steel
Frame configuration: Fixed glazed opening (no door)
Jamb depths:
Standard S-Series: 3-3/4″, 4-5/8″, 4-7/8″, 5″, 5-3/8″
Standard C-Series: 3-1/2″ to 7-1/4″
Custom jamb depths: Up to 13″ in 1/8″ increments
Maximum assembly width: Up to 12′-0″ (standard jamb depths)
Maximum assembly height: Up to 12′-0″ (standard jamb depths)
Mullions: Available for multiple lite configurations (18 gauge construction)
Rough opening: Glass size plus 1-1/4″ overall (plus mullion allowances)
Glass sizing: Typically 1/8″ smaller than frame opening for clearance
Fire ratings:
Up to 45 minutes for glazed assemblies
Installation: Post-drywall installation with snap-on casing system
Finish options: Factory prefinished standard and custom colors
Glass: Not included (glazing by others)
Applications: Offices, healthcare, education, and commercial interiors

Downloads
ClassicGeneralInfo.pdf