The Original StrongJamb™ System

The Original StrongJamb®

Custom Door Jambs Built for Special and/or Historical doors.

When standard frames don’t work, the Original StrongJamb provides a custom solution. Each jamb is built to match your specific door slab, wall thickness, and opening—making it ideal for unique or challenging projects. Unlike industry standard, finger-jointed lumber, The original StrongJamb is a laminated substrate! 

Benefits:

• Preserve original doors
  Perfect for historic homes—keep the door you love while upgrading the frame.
• Includes Armor Plate for extreme security
• Modern security compatibility
  Works seamlessly with today’s locking systems.
• Improved comfort
  Supports updated weather sealing for a tighter, more efficient entry.
• Clean, finished appearance
  Squares and spans difficult openings for a polished look.

Real-world application

In a remodel with 14" thick walls, a standard frame couldn’t span the opening. A custom StrongJamb—featuring variable jamb width and height and thickness—secured the entry, fit the existing 1‑3/8"  thick door slab, delivering a clean, finished result without replacing the door slab.

The StrongJamb® Advantage

✔ Stronger security where doors need it most
✔ Cost-effective upgrades— and reuse, repurpose, replace your historical doors.