You're in the right place for aftermarket home security. The Original StrongJamb™ solves most entry-door problems - introducing the patented Armor Plate®.
Your SMART lock is only as strong as the wood it locks into.
With Armor Plate you have No batteries. No wifi. No subscription. But you do have a 1/4 inch of American steel, mortised into your door jamb and anchored to the studs behind it.
Doors don't fail at the lock. They fail at the jamb.
Industry-standard doors and frames (aka jambs) are built with sustainable practices that save materials, which lets them be manufactured in mass - good for the environment and often for energy efficiency. But under forced entry they fail in three to seven seconds. The StrongJamb Armor Plate changes the function and the form, correcting that inherent flaw.
Combine your SMART lock with an Armor Plate and get the convenience of electronic locking systems with the surety of a steel barricade at every door.
Sleep well knowing StrongJamb cradles your doors in steel arms.
Give yourself and your family peace of mind. Sleep through the night without listening for the door.
StrongJamb™ makes the entryways to your home a trustworthy defense - not a lot of noise with flashing lights, but a steel-reinforced jamb that holds when it matters, quietly, for years.
Works with the locks you already trust - even the smart one.
The Armor Plate® isn't a lock and doesn't replace one - it's the steel foundation your lock bolts into. Designed to accommodate electronic and smart locks, so you keep locking your door from your phone. The Armor Plate can be engaged with the push of a button.
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 StrongJamb? Start here - you need the kit before you can install a plate. Already own the 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.
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.