The drawings decide before the concrete does.
Security infrastructure installs in a physically fixed order. The building’s geometry closes at schematic design; the pathways your devices will need close at construction documents — and the trades build to those drawings within weeks. It looks reversible because nothing is built yet. It isn’t.
Every other security pressure starts with something already broken. This one doesn’t — your building isn’t built yet, and there is nothing to find. What there is instead is an order: the decisions that stop being reversible, one after another, on a schedule set by construction physics rather than by anyone’s attention.
Conduit and back-boxes are roughed in before the walls close. But the security system is often not chosen until the project goes out to bid — after the drawings are done. So the holes your system will need are being drilled, or not drilled, right now, by someone who doesn’t yet know what system you’ll buy.
A decision looks reversible because it’s only on paper. The trades build to the paper.
The commitment is intellectual at construction documents and physical at rough-in. The gap between those two moments is where the project still thinks it has time.
Pathways specified, adjacencies fixed. The trades will build to exactly what the drawings say.
Cost to change: low. The last cheap moment.
Slab poured, wall closed, ceiling closed over the run — or over the run that was never made.
Cost to change: high. Now it is opening finished work.
And the building’s geometry — stairwell placement, ED-to-behavioral-health adjacency, the line between secure and public zones — closes earlier still, at schematic design, before conduit is even a question. Geometry closes first and cannot be un-drawn; pathways close second and can only be re-cut.
The full sequence, and why the person who knows what to ask for is usually absent when it’s drawn →
We name when the decision closes.
This room has more parties than any other — architect, security consultant, general contractor, owner’s rep, the authority having jurisdiction, electrical engineer, IT. The schedule is yours, the code call is the AHJ’s, the drawings are the architect’s.
Our part is narrow and specific: the head-end space and power a system you haven’t selected will still need, the pathways drawn for devices you might add and not only the ones already named, and the delivery-method reality that in design-bid-build the person who knows what the system needs isn’t in the room when the paths are drawn. We name the moment each of those closes. What you do about it is yours.
Find out what stage you’re in — and what it already closed.
Read your calendar, not your corridors
You can’t walk a building that isn’t built. So this one you answer from your project calendar, drawing set, and responsibility matrix — and it tells you which decisions you’ve already passed. No email; nothing stored.
Open the instrument → The depthThe holes your system will need are being drilled right now
The two windows, the geometry that closes first, the code you draw to versus the one you open under, and why delivery method changes when the window shuts.
Read the article →If a behavioral-health unit is in this project, one dated fact is worth carrying into the drawings: the coming FGI edition is expected to require location-pinpointing wearable duress on those units — not yet published, not yet enforceable, but designed into buildings that will open under it. You’re drawing to a code that doesn’t yet require what its successor will. Open behavioral health →