Every access controlled door has something in common, whether it swings in a hospital, a school, an office tower, or a warehouse. Somewhere on that opening is a card reader, an electric strike, an electrified lock, or a door position switch, and every one of those devices needs low voltage wiring to function. The question that has never had a clean answer is a simple one: how do the wires get into and through the door frame? This is the foundational problem Frame Frog was built to solve, and understanding it makes everything else about an access controlled opening easier.
Every Access Controlled Door Has a Wiring Problem
Hollow metal door frames have been in use for over 120 years. They were never designed to carry wires, and to this day there is no industry standard for how low voltage wiring should be installed inside them. That gap is easy to overlook on a drawing, where a specified device looks complete. It becomes very real in the field, where someone has to actually route protected wiring to that device through a frame that was never built to accommodate it. The result is a wiring problem hiding inside nearly every access controlled opening in commercial construction.
How the Industry Has Handled It, and Why It Falls Short
For decades, the workarounds have all involved a tradeoff. Individual home runs drop from the ceiling to each device separately, which multiplies labor and material on every opening. Bare wire gets fished through the frame cavity, fast in the moment but unprotected and effectively impossible to replace over the life of the building. Surface mounted conduit or wire mold gets the wire where it needs to go while looking like an afterthought on an otherwise finished wall.
Every one of these methods gives something up, whether it is cost, protection, appearance, or the ability to make changes later. Usually it gives up more than one. None of them treat the wiring pathway as something worth designing properly from the start.
What a Proper Pathway Actually Is
A proper pathway is a continuous, protected route for low voltage wiring that resides entirely within the throat of the frame. Because it lives inside the frame, it serves as its own back box, which means there is no need for a separate electrical box by the electrician. Rather than a tangle of individual drops, Frame Frog Kits connect every device on the opening through a single coordinated pathway. And critically, it stays accessible and fishable for the life of the building, so wires can be repaired, replaced, or upgraded without tearing into finished walls.
That last point is what separates a real pathway from a temporary fix. The devices on a door will change over the decades a building stands. The pathway should be ready for repairs and upgrades from day one.
The Range of Devices a Single Pathway Serves
The advantage of a continuous pathway is that one solution covers the entire opening. Electric strikes and electrified locks, frame mounted and adjacent card readers, door position switches, electric power transfers, and electrified hinges can all be served by the same coordinated route. Whether a device is being installed today or specified for future use, its place in the pathway can be accounted for before the frame is ever fabricated. One opening, one pathway, every device.
How Frame Frog Delivers the Pathway
Frame Frog is that pathway, built into the hollow metal frame rather than improvised around it. The Frame Frog LONG (FRG-4L) works in any frame location and is the product of choice for electric power transfers up to nine inches, while the Frame Frog SHORT (FRG-4S) handles hardware preps up to five inches. Frame Frog Kits package everything an opening needs into a single unit for shop or field installation, which keeps procurement and coordination simple.
Because it is coordinated in the hardware set, the frame fabricator can prep for every device before the frame leaves the shop. It is also tested and certified by Underwriters Laboratories to UL 10B, UL 10C, and Canadian Standard S104 for use in fire rated hollow metal doors and frames, so the pathway does not come at the expense of a labeled opening. In one solution, it eliminates the home run drops, the exposed conduit, and the unprotected wire that the old methods relied on.
Where to Go From Here
The pathway is the foundation. Once it is in place, every related decision on the opening gets easier, and each one has its own story worth understanding. For how to write the pathway into your construction documents, see the How to Specify Frame Frog guide. For how it holds up against tight masonry schedules, read When Access Control Meets the Critical Path. For preparing an opening today for devices that arrive years from now, see What "Future-Proof" Actually Means at a Door Opening. And for the coordination failures a proper pathway prevents, read The Missed Box Problem and What Architects Can Do to Improve Access Control Designs.
Explore the full product lineup, or contact the Frame Frog team or request a demo to see how the pathway fits into your next project.