The Original StrongJamb Armor Plate

You should be able to feel safe at home—whether you live in a house or an apartment. For over 35 years, ProSpeed Security Door Jamb Systems, Inc. (Dayton, Ohio) has helped customers strengthen and improve entryways with custom installation, replacement, and security upgrades. Our StrongJamb products reinforce the weak points in typical door frames, helping your door lock up more securely and look finished—without turning home protection into a high-dollar project. Visit www.strongjamb.com to learn more.

StrongJamb Armor Plate Patented 2025

Want to feel safer in your home or apartment—without replacing the whole door frame? StrongJamb Armor Plate is a recessed 1/4" steel reinforcement that strengthens exponentially, the most common break-in point on the door-jamb area the latch and deadbolt. It surrounds the lock area and resists blunt force-- like a battering ram. Armor Plate restores strength to openings that are already worn or damaged or broken, in minutes!

• Reinforces where it matters most: Strengthens the jamb at the deadbolt and latch—where doors most often split under force.
• More peace of mind: Adds steel support behind your lock area, helping the door opening resist kicks and prying.
• Cleaner, built-in look: Mortises into the jamb for an integrated, finished appearance.
• Fits common hardware: Machined to accommodate many 2-1/4" residential security bolts and handles.
• Anchors into the framing: Rear holes accept additional 3" (or longer) screws to transfer force toward the structural framing—not the jamb edge.

Easy installation: Armor Plate is designed to be simple. Using a basic jig and a router, it recesses neatly into the jamb so your hardware sits cleanly and securely. If your jamb is scarred from past lock changes or an uneven installation, Armor Plate can cover and reinforce the area while you upgrade the lock zone.