Inside Multi-Trade Layout: Who Does What, and When
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Multi-Trade Layout looks great on a workflow diagram. But projects don't run on diagrams. They run on people knowing what they own.
And that's the part of Multi-Trade Layout most teams underestimate: it doesn't just change how layout gets done — it changes who's doing what, when they're doing it, and who has to sign their name to it.
In part 5 of this series, we walked through the Multi-Trade Layout timeline and when each phase needs to happen. This post picks up where that one left off. Now that you know what and when, let's talk about who.
Multi-Trade Layout is a team sport
In the traditional model, layout ownership was simple: it was the trade's problem. Each trade showed up, laid out their own scope, and everybody else lived with whatever came of it.
That's not how Multi-Trade Layout works.
Multi-Trade Layout is a coordinated team deliverable that pulls work from multiple companies (including the GC and each participating trade) and from multiple teams inside each of those companies. There are real handoffs, and real opportunities for the workflow to fall apart if no one's clear on their role.
Which means: before you can run the workflow, you have to assign the work.
You need to decide who’s leading to establish roles and responsibilities
Multi-Trade Layout doesn't have to be led by the GC. As we covered in part 3 of this series, workflow leadership can sit with the GC, with a participating trade who's deeply experienced with the technology, or with a third-party coordinator (a consultant or VDC partner the GC has brought in).
This post assumes the GC is leading the workflow throughout.
The accountabilities below don't change fundamentally based on who leads — they just shift to whichever party is in the driver's seat. If Multi-Trade Layout for your project is trade-led or third-party-led, just mentally swap "the GC" for whoever's leading.
The who's who
To assign accountability clearly, we have to be precise about two things: the company we're talking about, and the team or role inside that company.
The parties at the table
- The GC. We'll assume the GC is leading the workflow in this article.
- Each participating trade. Typically framing, MEP (mechanical, electrical, plumbing), fire protection, and any trade installing major equipment or prefabricated assemblies. If the GC has a self-perform team involved, it's reasonable for purposes of this discussion to think of that team as a separate trade.
- Optionally, a third-party coordinator. A consultant or VDC partner brought in to help with layout file coordination. Not present on all projects, but worth naming as a possibility.
The teams each party brings
Multi-Trade Layout pulls work from the same set of teams at the GC and every trade contractor involved:
- Estimating / preconstruction. Performs takeoffs to scope the work, prices the coordination and robot operation labor, and writes Multi-Trade Layout into bid documents.
- Project management. Owns contractual scope, schedule integration, and the buyout process.
- VDC / BIM. Produces and federates the layout files, enforces layer and line- and point-style standards, stewards the file through coordination.
- Field operations. Supers, foremen, and (when applicable) the robot operator. Prep the slab, execute the print, sign off on what hit the floor.
And one more role: the Layout Lead
One role doesn't exist on most project org charts yet, but it's what makes Multi-Trade Layout work end-to-end: the Layout Lead. They're the single accountable owner of the workflow from pursuit through print day. The Layout Lead sits at whichever party is leading — probably a senior person on the GC's VDC team, a layout-focused PM, or someone whose specific job is layout coordination across the company's projects. More on this role at the end.
Dusty‘s implementation and VDC services teams aren’t on this list, but we're often in the room, supporting project teams when you need help, from kickoff meetings through print day. We're a partner, a sounding board, a consultant, but not an accountability owner.
A walk through the workflow — by who's on the hook
What follows isn't a project schedule. It's a map of accountability across the six phases of Multi-Trade Layout (if you need a refresher on these phases, see part 5 of this series). For each phase, we're calling out three things:
- Who's accountable: the buck stops here.
- Who contributes: the other parties who do the work.
- The deliverable: what good looks like at the end of the phase.
If you can't answer all three at the start of a phase, you're not ready to run it.
Phase 1: Estimating & Bidding
Accountable: The GC's estimating lead, with GC VDC leadership weighing in
Contributors: The GC's pursuit team, project executive, and the future Layout Lead (if already identified)
Deliverable: Layout scope priced into the bid; Multi-Trade Layout expectations and participating trades flagged in bid docs
This is where Multi-Trade Layout starts living or dying — long before anyone is onsite.
The questions that need answers in this phase:
- Will this project use Multi-Trade Layout? (Don't punt this decision.)
- Which trades will participate?
- What does coordination cost, and who's paying for it?
- If the GC is considering delegating the leadership of Multi-Trade Layout, make those expectations clear in the bid docs for that trade. (See part 3 of this series for that decision tree.)
- Get your costs right. Across the board, make sure bid docs are clear that trades will need to participate in layout coordination up front, but also that they do not need to include for labor to support traditional/manual layout.
The failure mode here is silence. Layout shows up as a $0 line item, buried in someone's general conditions or assumed inside a sub's scope. Then it surfaces later as a change order, a finger-point, or an "I thought you were doing that."
"The ownership group and the GCs were pushing for Multi-Trade because they saw the potential of the automated layout systems, specifically Dusty, the value that it can bring to coordinate layout across all trades."
Phase 2: Buyout
Accountable: The GC's project manager
Contributors: At the GC: procurement team, Layout Lead, VDC leadership. At the trades: project manager, VDC leadership
Deliverable: Subcontracts that explicitly include Multi-Trade Layout responsibilities — file prep, review windows, signoff, QA, and robot buyout — for every participating trade
Buyout is when Multi-Trade Layout changes from "the plan" to "a contract." If your subs aren't bought out with Multi-Trade Layout responsibilities written into their scope, you're going to spend the rest of the project chasing change orders.
This is the phase where the PM needs to know:
- Which trades are participating, and in what role
- Who's operating the robot (the GC, a trade, a third party, or a combination thereof; see part 3)
- What the file prep, review, and signoff timeline looks like, so it can be referenced in the contract
We'll share more about contract language and best practices for Multi-Trade Layout in a future post in this series. In the meantime: don't let subs sign without language that addresses layout deliverables, review windows, and signoff.
Now is also the time to make sure that buyout of the robot itself (the contract with Dusty) is in somebody's scope. It's reasonable for the GC to handle that itself, or to delegate that buyout to a trade. But you don't want to miss it, and you definitely don't want to double up.
Phase 3: Kickoff & Scope Alignment
Accountable: The GC's Layout Lead
Contributors: At the GC: VDC team, superintendent. At the trades: VDC team, superintendent/foreman.
Deliverable: Agreed layout scope, control strategy, file submission schedule, and signoff plan — captured in writing and shared with all participants
This is the phase where the Layout Lead role becomes visible to the project team. The Layout Lead calls the kickoff, runs the meeting, and walks out with commitments from every participating trade.
What gets decided here:
- What's going to be printed and what isn't (see part 4 for guidance on this)
- Control strategy (who is providing control, and what is the plan to set, verify, and document control for the rest of the team — see Understanding Control in Construction Layout)
- File naming, layer standards, and submission deadlines
- Who reviews, who signs off, and in what order
Kickoff isn't a status update — it's where the trades buy in. Get this right and the rest of the workflow practically runs itself. Get it wrong and you'll spend weeks renegotiating.
"Collaboration with all trade partners (mechanical, electrical, plumbing, framing and drywall) on layout strategy and responsibilities simultaneously, done via the use of Dusty Robotics, delivered the project nearly three months ahead of schedule at a cost savings of approximately $3 million for the client."
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Phase 4: File Prep & Coordination
Accountable: The GC's VDC lead, under the GC's Layout Lead
Contributors: At the GC: VDC team. At the trades: VDC leads/team. Third parties (optional): surveyor or third party to set control (per the strategy settled above)
Deliverable: A federated, reviewed layout file in Dusty Portal, ready for final signoff
The heart of layout used to be the days or weeks it would take to snap out lines on site. Dusty makes that quick and easy. It’s preparing the digital deliverables that is now the center of the workflow, and that’s what this phase is all about. VDC is heavily engaged here.
At the GC, VDC is receiving files from each trade, federating them, layering in control, and producing the unified print file.
Each participating trade's VDC team delivers clean .dwg and/or .csv files for their scope, on the schedule agreed in kickoff. After the GC's VDC team aggregates them in Dusty Portal, enforces line styles and point styles, the whole group works together to identify and resolve any conflicts that surface in the federation. Control gets layered in — either from previously-set jobsite control or from a fresh control set documented during this phase. Trades review and sign-off on a final, coordinated layout file prior to print.
We'll be going deeper on file prep best practices for VDC teams in an upcoming post — including how to avoid the common pitfalls.
The contribution most likely to be underweighted in this phase? The VDC leads at each participating trade. They aren't just delivering files — they're confirming the federated layout reflects their scope accurately. That's a real review, not a formality.
"Prepping files presented a small challenge, but once we learned what small changes we could make to the model data to optimize the layout, this little guy Dusty just chugs away."
Phase 5: Final Approval & QA
Accountable: The GC's Layout Lead, with the foreman at each participating trade on the hook for signing off on their own scope
Contributors: At the GC: Superintendent. At the trades: VDC.
Deliverable: Documented signoff from every participating trade on the final layout file
This is the phase where you protect against print-day surprises.
Each participating trade reviews the combined print file using Dusty Portal. Each one confirms — in writing — that their layout is correct, complete, and ready to print. The GC's field super reviews print logistics and site readiness.
Treat this like a pre-pour walk. No surprises on the day of.
"Each time we checked manually, everything was right on, and that really gave people the confidence to trust in the layout going forward — the results spoke for themselves."
Phase 6: Layout Execution (Print Day)
Accountable: The layout robot operator — whether that's the GC's own operator, an operator at one of the participating trades, or a third-party operator hired as a service (see part 3) — and the GC's Layout Lead, who owns the day
Contributors: At the GC: Superintendent. At the trades: Foremen, field engineers
Deliverable: A clean, accurate layout on the slab; each trade's field acceptance of their portion; print data captured in Dusty Portal for reporting
This is the part that used to take whole layout crews days or weeks. Dusty’s going to make it a breeze. But accountability and ownership of the phase is still key.
The decisions you made back in part 3 about who runs the robot show up here. Whether it's the GC's own labor, a trade's operator, or a third-party operator hired as a service — that person is accountable for executing the print.
The Layout Lead is still on the hook for the day. They're working in close concert with the Superintendent to make sure the slab is clear, control is visible, power is available, and the right people are there to receive the layout and sign off in the field.
We'll have more execution guidance for field teams later in this series — including practical tips for getting field buy-in, sequencing the print, and capturing post-print sign-offs.
"We saved two weeks on a five-month layout schedule, while using only a four-person crew to lay out much more information than before. Previously each trade would have two separate four-person crews. Dusty let us be much more lean, accurate, and detailed, all at the same time."
The role nobody puts in their job description: The Layout Lead
What ties these phases of work and the resulting deliverables together is the Layout Lead — the single person who carries Multi-Trade Layout from pursuit through print day. This person is employed by whatever party is leading the workflow.
The Layout Lead’s job is to make sure every task has an owner. They run the kickoff, keep the schedule, and escalate when a participating trade is dragging. They coordinate training and enablement resources when the team needs it, and they're in close, regular contact with Dusty for help and advice. Most importantly, they own the outcome on print day.
This role isn't in most companies' job catalog yet. It lives with whoever's most invested — usually a VDC manager, or a layout-focused PM.
But it always exists. And in our experience, the projects where Multi-Trade Layout delivers the most value are the ones where the Layout Lead is named, empowered, and held accountable.
If you're building out a Multi-Trade Layout practice at your company, this role is the one to invest in first.
The bottom line: Accountability drives success with Multi-Trade Layout
Layout used to be a task. Now it's a coordinated team deliverable — and every deliverable needs an owner.
The phases will run themselves if the roles are clear. They'll collapse if they aren't.
Before each phase begins, you only need to answer two questions:
- Who's accountable?
- Who's signing off?
If you can answer those, you're ready. If you can't, you'll thank yourself for pausing to figure it out before you start executing.
Catch up on our series
This article is #6 in our deep-dive series on best practices for the Multi-Trade Layout workflow powered by Dusty. If Automated Layout is the technology, Multi-Trade Layout is the process, and this series is all about how to do it right. Catch up on the rest of the series below.
Foundations
#1: The Bottleneck That's Costing You Time, Money, and Trust. What's wrong with traditional layout in modern construction?
#2: Multi-Trade Layout: The Construction Workflow That Changes Everything. An introduction to Multi-Trade Layout, how it works, and how it's different.
Workflow Strategy
#3: Four Decisions Every GC Needs to Make to Implement Multi-Trade Layout. Who leads the workflow? What’s in-scope for Multi-Trade Layout? When will all this happen? How will you execute?
#4: What Goes on the Slab? How to Decide Who—and What—Gets Included in Multi-Trade Layout. How to decide what trades to involve. Reimagining what layout can communicate. Deciding what to print.
#5: When Does Layout Start? Earlier Than You Think. How to schedule for Multi-Trade Layout — and what to do when the job is already underway.
Implementation
#6: Inside Multi-Trade Layout: Who Does What, and When. (You're reading it!) Roles and responsibilities. Who does what, and when.