Features:

• 3-piece (knock down) steel frame; including 1 head, 1 hinge jamb, and 1 strike jamb
• For installation after wall is constructed
• Recommended for interior or exterior low-frequency commercial, industrial, and residential applications
• Manufactured from hot-dipped,  paintable galvanneal steel
• Manufactured from 18 (0.8mm) or 16 gage (1.5mm)
• For use with 1 3/4″ (44mm) thick doors
• 1 base anchor, 1 centre strap anchor, and 1 adjustable tension anchor included with each jamb
• Available with 2 3/8″ (60mm) through 8 3/4″ (222mm) back opening for 18 gage Available with 3 3/4″ (95mm) through 11 7/8″ (302mm) back opening for 16 gage
• Available in opening sizes 1’6″ – 4’0″ x 3’0″ – 10’0″ (single opening), and 3’0″ – 8’0″ x 3’0″ – 10’0″ (double opening)
• Mitred corners
• Available fire rated up to 1 1/2 hour (Class B)