Your smart lock is only as strong as the wood it locks into.
A quarter inch of American steel, mortised into your door jamb and anchored to the studs behind it. No batteries. No wifi. No subscription.
Doors don't fail at the lock. They fail at the jamb.
A standard residential jamb is finger-jointed pine. The strike plate that catches your deadbolt is held in by three-quarter-inch screws, biting into three-quarters of an inch of soft wood. One kick puts every pound of force into that one weak spot - and the wood gives up long before the lock does.
You can spend six hundred dollars on a smart lock. It still bolts into pine.
The people behind the door are the whole point.
Locks and alarms are just means to an end. The end is a family that sleeps through the night without listening for the door.
StrongJamb makes the entry they already trust actually trustworthy - a steel-reinforced jamb that holds when it matters, quietly, for years.
Works with the lock you already trust.
StrongJamb isn't a lock and doesn't replace one. It's the foundation your lock bolts into - machined to accept most 2-1/4 inch residential security bolts and handle sets, including every major smart lock.
Patent pending. Made in the USA.
Don't take our word for it. Watch it get hit.
Who are you protecting?
Homeowners & Families
Secure the door you sleep behind. One plate, one afternoon, under a hundred dollars.
Property Managers
Fewer kicked doors. Fewer turnovers. Safer residents.
Contractors & Installers
A twenty-minute upgrade you can charge for on every door you hang.
Hardware Manufacturers
Made in Ohio, ready for OEM, private label, and co-marketing.
Start here
Start with the DIY Kit.
The plate, the jig, and everything you need to cut a clean mortise the first time. New to this? This is where to start. Already own a router and jig? Just grab the Armor Plate on its own.
Ships from Dayton, Ohio.
View full detailsTrusted by homeowners and businesses in Dayton
Fifty years of door experience, now protecting doors across Ohio.
Prospeed professionally handled the procurement of a sliding door and 2 sliding windows for my Centerville condo (I am an out-of-town owner) and installed them with me on site. Joe Pollard and his crew performed the work and left the condo in good shape. Greg Pollard made sure I was satisfied. I recommend Prospeed for door and window replacement.
Kim is absolutely one of the greatest people I've ever met. The passion and care that they put into their product is second to none and we are truly blessed to know them.
These guys are amazing! If I could give them 10 stars I would!
Building or remodeling? Ask one question.
Are you reinforcing the jamb, or just the door? Most builders aren't - not because they're cutting corners, but because reinforced jambs have never been standard. Ask while the frame is still open.
Talk to us
ProSpeed Security Door Jamb Systems, Inc. - makers of the StrongJamb Armor Plate.
Dayton, Ohio - Mon to Fri, 9AM to 5PM EST
Made in Ohio
Forged in Dayton, Serving the Nation
Every StrongJamb Armor Plate is machined and shipped from our shop in Dayton, Ohio - protecting doors in all fifty states.