From across the room, an access controlled opening looks simple. A door, a frame, a card reader, maybe an electric strike. Get closer and you are looking at a collision point for four separate trades, each showing up with its own crew, its own schedule, and its own idea of where its work ends and the next trade’s begins. The hollow metal fabricator preps and delivers the frame. The general contractor installs the door hardware. The electrical contractor runs conduit to the opening. The technology contractor installs and terminates the low voltage wiring for the access control devices. Put all four scopes inside a few inches of hollow metal frame with no line drawn between them, and the frame stops being a building component. It becomes a dispute.
That dispute has a price, it eats schedule, and it shows up again on the next job, because the thing causing it is never dealt with where it starts: the spec stage.
Why the Boundary Was Never Drawn
Hollow metal door frames have been standard in commercial construction for generations. What has never been standardized is which trade owns the wire pathway inside the frame throat. The hardware schedule lists every device at the opening, the card reader, the electric strike, the door position switch, the electric power transfer, but it says nothing about who builds a protected path to reach those devices through the frame, or who answers for it when that path does not exist.
With no one clearly assigned to the in-frame pathway, everyone assumes someone else has it. The hollow metal fabricator delivers the frame and moves on. The electrical contractor stops at the conduit stub-out. The general contractor installs the door hardware but does not connect the wiring. The technology contractor arrives expecting a clear path and finds none. The gap that opened back at the spec stage is still sitting there, now live on the job site, with four crews standing around it.
None of that is the fault of any one trade. It is a structural gap in how the opening gets scoped and documented, and it is why the same argument gets re-litigated project after project, with the same cast and the same bill waiting at the end.
What the Fighting Actually Costs
The cost you can see is the change order. When scope was never assigned, work ends up billed outside the original contract, duplicated, or torn out and redone. The technology contractor who has to improvise a pathway bills for the time. The electrical contractor called back to redo a termination bills for the trip. Meanwhile the general contractor eats the delay while everyone sorts out who owes what.
The cost you cannot see is the padded bid. Contractors who have been burned before do not wait around to be surprised again. They price the uncertainty in up front, which means building owners and developers pay for friction that never appears as a line item. Leave the border war out of the contract and it does not go away. It just hides in the margin.
And every hour a skilled trade spends negotiating turf at the frame is an hour not spent building. Hold-ups at the opening can stall door hardware installation, complicate fire-rated opening inspections, and shove the technology contractor’s work into the punch list phase, where everything runs more expensive.
Giving Each Trade a Clean Lane
Frame Frog solves the scope problem by setting each trade’s handoff point before there is anything to argue about. It installs inside the throat of a hollow metal door frame and serves as its own back box, creating a continuous, protected, fishable wire pathway that stays accessible for the life of the building. The pathway is built into the frame, not improvised at the opening.
Here is how the separation actually plays out. The fabricator installs Frame Frog in the shop, so the frame ships with a complete pathway already in it and nothing to work out in the field. The electrical contractor runs conduit to one defined termination point and stops there, which makes the line between electrical scope and low voltage scope something you can see and touch rather than something to interpret. From there the technology contractor simply pulls and terminates through a pathway that is already waiting, with no improvising and no coordination standoff at the frame.
Frame Frog Kits package everything a complete opening needs in a single unit for shop or field installation. Frame Frog LONG (FRG-4L) works in any frame location and is the product of choice for electric power transfers up to 9 inches, while Frame Frog SHORT (FRG-4S) handles hardware preps in a frame up to 5 inches. Both are made in the USA and patented.
One planning detail is worth stating plainly. Frame Frog goes into a new frame, or into an existing frame that is being removed and reinstalled. It cannot be added to a frame that stays in the wall, and any install involving an existing frame disturbs the wall when the frame comes out. In other words, the time to specify it is at the front end of the project, not after the frames are set.
The Truce That Shows Up on the Bottom Line
Once every trade has a lane, the argument ends because the territory is no longer in question. The fabricator preps a known scope in the shop. The electrician has a clear place to stop. The technology contractor walks up to a frame that is ready for access control wiring coordination instead of a problem to untangle, and the general contractor closes out the opening without a change order to negotiate.
For owners and developers, that adds up to a more predictable project, less buried friction cost, and a finished opening that looks planned because it was. Better still, the pathway stays accessible for repairs, upgrades, and future access control work without anyone tearing back into the frame.
The border war at the access controlled opening is not inevitable. It comes from a gap that can be closed at the spec stage, and closing it is exactly what Frame Frog does.
Explore the Frame Frog product lineup, learn how to specify Frame Frog, or contact the team to talk through your next project.